HorizontalMixer Class Reference

#include <HorizontalMixer.h>

+ Inheritance diagram for HorizontalMixer:

Public Member Functions

 HorizontalMixer (Mdouble particleRadius, Mdouble rotationSpeed, Mdouble timeMin, Mdouble fillHeight)
 Constructor, turns off fstat output by default. More...
 
void setScrewWalls (const ParticleSpecies *s, Mdouble screwCenter, Mdouble screwBaseHeight, Mdouble screwBaseRadius, Mdouble screwTopHeight, Mdouble windingLength, Mdouble minR, Mdouble lowerR, Mdouble diffR, Mdouble thickness)
 sets four walls, leftScrew, rightScrew, leftBaseScrew, rightBaseScrew More...
 
virtual void setScrewCore (const ParticleSpecies *s, Mdouble screwCenter, Mdouble screwBaseHeight, Mdouble coreTopHeight, Mdouble coreTopRadius, Mdouble coreBottomHeight, Mdouble coreBottomRadius)
 sets four walls, leftScrewCore, rightScrewCore, leftScrewBottom, rightScrewBottom More...
 
virtual void setOuterWalls (const ParticleSpecies *s, Mdouble outerBaseRadius, Mdouble screwCenter, Mdouble outerTopCenter, Mdouble outerTopRadius, Mdouble outerTopHeight)
 sets other walls that define the outer boundary More...
 
void setupInitialConditions () override
 This function allows to set the initial conditions for our problem to be solved, by default particle locations are randomly set. Remember particle properties must also be defined here. More...
 
void introduceSingleParticle (Vec3D p)
 
void introduceParticlesAtWall ()
 
void introduceParticlesInDomain (Mdouble polydispersity=1)
 
void printTime () const override
 Displays the current simulation time and the maximum simulation duration. More...
 
void actionsAfterTimeStep () override
 A virtual function which allows to define operations to be executed after time step. More...
 
void writeScript ()
 
- Public Member Functions inherited from Mercury3D
 Mercury3D ()
 This is the default constructor. All it does is set sensible defaults. More...
 
 Mercury3D (const DPMBase &other)
 Copy-constructor for creates an Mercury3D problem from an existing MD problem. More...
 
 Mercury3D (const Mercury3D &other)
 Copy-constructor. More...
 
void constructor ()
 Function that sets the SystemDimension and ParticleDimension to 3. More...
 
std::vector< BaseParticle * > hGridFindParticleContacts (const BaseParticle *obj) override
 Returns all particles that have a contact with a given particle. More...
 
- Public Member Functions inherited from MercuryBase
 MercuryBase ()
 This is the default constructor. It sets sensible defaults. More...
 
 ~MercuryBase () override
 This is the default destructor. More...
 
 MercuryBase (const MercuryBase &mercuryBase)
 Copy-constructor. More...
 
void constructor ()
 This is the actual constructor, it is called do both constructors above. More...
 
void hGridActionsBeforeTimeLoop () override
 This sets up the broad phase information, has to be done at this stage because it requires the particle size. More...
 
void hGridActionsBeforeTimeStep () override
 Performs all necessary actions before a time-step, like updating the particles and resetting all the bucket information, etc. More...
 
void read (std::istream &is, ReadOptions opt=ReadOptions::ReadAll) override
 Reads the MercuryBase from an input stream, for example a restart file. More...
 
void write (std::ostream &os, bool writeAllParticles=true) const override
 Writes all data into a restart file. More...
 
Mdouble getHGridCurrentMaxRelativeDisplacement () const
 Returns hGridCurrentMaxRelativeDisplacement_. More...
 
Mdouble getHGridTotalCurrentMaxRelativeDisplacement () const
 Returns hGridTotalCurrentMaxRelativeDisplacement_. More...
 
void setHGridUpdateEachTimeStep (bool updateEachTimeStep)
 Sets whether or not the HGrid must be updated every time step. More...
 
bool getHGridUpdateEachTimeStep () const final
 Gets whether or not the HGrid is updated every time step. More...
 
void setHGridMaxLevels (unsigned int HGridMaxLevels)
 Sets the maximum number of levels of the HGrid in this MercuryBase. More...
 
unsigned int getHGridMaxLevels () const
 Gets the maximum number of levels of the HGrid in this MercuryBase. More...
 
HGridMethod getHGridMethod () const
 Gets whether the HGrid in this MercuryBase is BOTTOMUP or TOPDOWN. More...
 
void setHGridMethod (HGridMethod hGridMethod)
 Sets the HGridMethod to either BOTTOMUP or TOPDOWN. More...
 
HGridDistribution getHGridDistribution () const
 Gets how the sizes of the cells of different levels are distributed. More...
 
void setHGridDistribution (HGridDistribution hGridDistribution)
 Sets how the sizes of the cells of different levels are distributed. More...
 
Mdouble getHGridCellOverSizeRatio () const
 Gets the ratio of the smallest cell over the smallest particle. More...
 
void setHGridCellOverSizeRatio (Mdouble cellOverSizeRatio)
 Sets the ratio of the smallest cell over the smallest particle. More...
 
bool hGridNeedsRebuilding ()
 Gets if the HGrid needs rebuilding before anything else happens. More...
 
virtual unsigned int getHGridTargetNumberOfBuckets () const
 Gets the desired number of buckets, which is the maximum of the number of particles and 10. More...
 
virtual Mdouble getHGridTargetMinInteractionRadius () const
 Gets the desired size of the smallest cells of the HGrid. More...
 
virtual Mdouble getHGridTargetMaxInteractionRadius () const
 Gets the desired size of the largest cells of the HGrid. More...
 
bool checkParticleForInteraction (const BaseParticle &P) final
 Checks if given BaseParticle has an interaction with a BaseWall or other BaseParticle. More...
 
bool checkParticleForInteractionLocal (const BaseParticle &P) final
 Checks if the given BaseParticle has an interaction with a BaseWall or other BaseParticles in a local domain. More...
 
virtual Mdouble userHGridCellSize (unsigned int level)
 Virtual function that enables inheriting classes to implement a function to let the user set the cell size of the HGrid. More...
 
void hGridInfo (std::ostream &os=std::cout) const
 Writes the info of the HGrid to the screen in a nice format. More...
 
- Public Member Functions inherited from DPMBase
void constructor ()
 A function which initialises the member variables to default values, so that the problem can be solved off the shelf; sets up a basic two dimensional problem which can be solved off the shelf. It is called in the constructor DPMBase(). More...
 
 DPMBase ()
 Constructor that calls the "void constructor()". More...
 
 DPMBase (const DPMBase &other)
 Copy constructor type-2. More...
 
virtual ~DPMBase ()
 virtual destructor More...
 
void autoNumber ()
 The autoNumber() function calls three functions: setRunNumber(), readRunNumberFromFile() and incrementRunNumberInFile(). More...
 
std::vector< int > get1DParametersFromRunNumber (int size_x) const
 This turns a counter into 1 index, which is a useful feature for performing 1D parameter study. The index run from 1:size_x, while the study number starts at 0 (initially the counter=1 in COUNTER_DONOTDEL) More...
 
std::vector< int > get2DParametersFromRunNumber (int size_x, int size_y) const
 This turns a counter into 2 indices which is a very useful feature for performing a 2D study. The indices run from 1:size_x and 1:size_y, while the study number starts at 0 ( initially the counter=1 in COUNTER_DONOTDEL) More...
 
std::vector< int > get3DParametersFromRunNumber (int size_x, int size_y, int size_z) const
 This turns a counter into 3 indices, which is a useful feature for performing a 3D parameter study. The indices run from 1:size_x, 1:size_y and 1:size_z, while the study number starts at 0 ( initially the counter=1 in COUNTER_DONOTDEL) More...
 
int launchNewRun (const char *name, bool quick=false)
 This launches a code from within this code. Please pass the name of the code to run. More...
 
void setRunNumber (int runNumber)
 This sets the counter/Run number, overriding the defaults. More...
 
int getRunNumber () const
 This returns the current value of the counter (runNumber_) More...
 
virtual void decompose ()
 Sends particles from processorId to the root processor. More...
 
void solve ()
 The work horse of the code. More...
 
void initialiseSolve ()
 Beginning of the solve routine, before time stepping. More...
 
void finaliseSolve ()
 End of the solve routine, after time stepping. More...
 
virtual void computeOneTimeStep ()
 Performs everything needed for one time step, used in the time-loop of solve(). More...
 
void checkSettings ()
 Checks if the essentials are set properly to go ahead with solving the problem. More...
 
void forceWriteOutputFiles ()
 Writes output files immediately, even if the current time step was not meant to be written. Also resets the last saved time step. More...
 
virtual void writeOutputFiles ()
 Writes simulation data to all the main Mercury files: .data, .ene, .fstat, .xballs and .restart (see the Mercury website for more details regarding these files). More...
 
void solve (int argc, char *argv[])
 The work horse of the code. Can handle flags from the command line. More...
 
virtual void writeXBallsScript () const
 This writes a script which can be used to load the xballs problem to display the data just generated. More...
 
virtual Mdouble getInfo (const BaseParticle &P) const
 A virtual function that returns some user-specified information about a particle. More...
 
ParticleVtkWritergetVtkWriter () const
 
virtual void writeRestartFile ()
 Stores all the particle data for current save time step to a "restart" file, which is a file simply intended to store all the information necessary to "restart" a simulation from a given time step (see also MercuryDPM.org for more information on restart files). More...
 
void writeDataFile ()
 
void writeEneFile ()
 
void writeFStatFile ()
 
void fillDomainWithParticles (unsigned N=50)
 
bool readRestartFile (ReadOptions opt=ReadOptions::ReadAll)
 Reads all the particle data corresponding to a given, existing . restart file (for more details regarding restart files, refer to the training materials on the MercuryDPM website).Returns true if it is successful, false otherwise. More...
 
int readRestartFile (std::string fileName, ReadOptions opt=ReadOptions::ReadAll)
 The same as readRestartFile(bool), but also reads all the particle data corresponding to the current saved time step. More...
 
virtual BaseWallreadUserDefinedWall (const std::string &type) const
 Allows you to read in a wall defined in a Driver directory; see USER/Luca/ScrewFiller. More...
 
virtual void readOld (std::istream &is)
 Reads all data from a restart file, e.g. domain data and particle data; old version. More...
 
bool readDataFile (std::string fileName="", unsigned int format=0)
 This allows particle data to be reloaded from data files. More...
 
bool readParAndIniFiles (std::string fileName)
 Allows the user to read par.ini files (useful to read files produced by the MDCLR simulation code - external to MercuryDPM) More...
 
bool readNextDataFile (unsigned int format=0)
 Reads the next data file with default format=0. However, one can modify the format based on whether the particle data corresponds to 3D or 2D data- see Visualising data in xballs. More...
 
void readNextFStatFile ()
 Reads the next fstat file. More...
 
bool findNextExistingDataFile (Mdouble tMin, bool verbose=true)
 Finds and opens the next data file, if such a file exists. More...
 
bool readArguments (int argc, char *argv[])
 Can interpret main function input arguments that are passed by the driver codes. More...
 
bool checkParticleForInteractionLocalPeriodic (const BaseParticle &P)
 
void readSpeciesFromDataFile (bool read=true)
 
void importParticlesAs (ParticleHandler &particleHandler, InteractionHandler &interactionHandler, const ParticleSpecies *species)
 Copies particles, interactions assigning species from a local simulation to a global one. Useful for the creation of a cluster. More...
 
MERCURYDPM_DEPRECATED FilegetDataFile ()
 The non const version. Allows one to edit the File::dataFile. More...
 
MERCURYDPM_DEPRECATED FilegetEneFile ()
 The non const version. Allows to edit the File::eneFile. More...
 
MERCURYDPM_DEPRECATED FilegetFStatFile ()
 The non const version. Allows to edit the File::fStatFile. More...
 
MERCURYDPM_DEPRECATED FilegetRestartFile ()
 The non const version. Allows to edit the File::restartFile. More...
 
MERCURYDPM_DEPRECATED FilegetStatFile ()
 The non const version. Allows to edit the File::statFile. More...
 
FilegetInteractionFile ()
 Return a reference to the file InteractionsFile. More...
 
MERCURYDPM_DEPRECATED const FilegetDataFile () const
 The const version. Does not allow for any editing of the File::dataFile. More...
 
MERCURYDPM_DEPRECATED const FilegetEneFile () const
 The const version. Does not allow for any editing of the File::eneFile. More...
 
MERCURYDPM_DEPRECATED const FilegetFStatFile () const
 The const version. Does not allow for any editing of the File::fStatFile. More...
 
MERCURYDPM_DEPRECATED const FilegetRestartFile () const
 The const version. Does not allow for any editing of the File::restartFile. More...
 
MERCURYDPM_DEPRECATED const FilegetStatFile () const
 The const version. Does not allow for any editing of the File::statFile. More...
 
const FilegetInteractionFile () const
 
const std::string & getName () const
 Returns the name of the file. Does not allow to change it though. More...
 
void setName (const std::string &name)
 Allows to set the name of all the files (ene, data, fstat, restart, stat) More...
 
void setName (const char *name)
 Calls setName(std::string) More...
 
void setSaveCount (unsigned int saveCount)
 Sets File::saveCount_ for all files (ene, data, fstat, restart, stat) More...
 
void setFileType (FileType fileType)
 Sets File::fileType_ for all files (ene, data, fstat, restart, stat) More...
 
void setOpenMode (std::fstream::openmode openMode)
 Sets File::openMode_ for all files (ene, data, fstat, restart, stat) More...
 
void resetFileCounter ()
 Resets the file counter for each file i.e. for ene, data, fstat, restart, stat) More...
 
void closeFiles ()
 Closes all files (ene, data, fstat, restart, stat) that were opened to read or write. More...
 
void setLastSavedTimeStep (unsigned int nextSavedTimeStep)
 Sets the next time step for all the files (ene, data, fstat, restart, stat) at which the data is to be written or saved. More...
 
Mdouble getTime () const
 Returns the current simulation time. More...
 
Mdouble getNextTime () const
 Returns the current simulation time. More...
 
unsigned int getNumberOfTimeSteps () const
 Returns the current counter of time-steps, i.e. the number of time-steps that the simulation has undergone so far. More...
 
void setTime (Mdouble time)
 Sets a new value for the current simulation time. More...
 
void setTimeMax (Mdouble newTMax)
 Sets a new value for the maximum simulation duration. More...
 
Mdouble getTimeMax () const
 Returns the maximum simulation duration. More...
 
void setLogarithmicSaveCount (Mdouble logarithmicSaveCountBase)
 Sets File::logarithmicSaveCount_ for all files (ene, data, fstat, restart, stat) More...
 
void setNToWrite (int nToWrite)
 set the number of elements to write to the screen More...
 
int getNToWrite () const
 get the number of elements to write to the More...
 
void setRotation (bool rotation)
 Sets whether particle rotation is enabled or disabled. More...
 
bool getRotation () const
 Indicates whether particle rotation is enabled or disabled. More...
 
MERCURYDPM_DEPRECATED void setWallsWriteVTK (FileType writeWallsVTK)
 Sets whether walls are written into a VTK file. More...
 
MERCURYDPM_DEPRECATED void setWallsWriteVTK (bool)
 Sets whether walls are written into a VTK file. More...
 
MERCURYDPM_DEPRECATED void setInteractionsWriteVTK (bool)
 Sets whether interactions are written into a VTK file. More...
 
void setParticlesWriteVTK (bool writeParticlesVTK)
 Sets whether particles are written in a VTK file. More...
 
void setSuperquadricParticlesWriteVTK (bool writeSuperquadricParticlesVTK)
 
MERCURYDPM_DEPRECATED FileType getWallsWriteVTK () const
 Returns whether walls are written in a VTK file. More...
 
bool getParticlesWriteVTK () const
 Returns whether particles are written in a VTK file. More...
 
bool getSuperquadricParticlesWriteVTK () const
 
Mdouble getXMin () const
 If the length of the problem domain in x-direction is XMax - XMin, then getXMin() returns XMin. More...
 
Mdouble getXMax () const
 If the length of the problem domain in x-direction is XMax - XMin, then getXMax() returns XMax. More...
 
Mdouble getYMin () const
 If the length of the problem domain in y-direction is YMax - YMin, then getYMin() returns YMin. More...
 
Mdouble getYMax () const
 If the length of the problem domain in y-direction is YMax - YMin, then getYMax() returns XMax. More...
 
Mdouble getZMin () const
 If the length of the problem domain in z-direction is ZMax - ZMin, then getZMin() returns ZMin. More...
 
Mdouble getZMax () const
 If the length of the problem domain in z-direction is ZMax - ZMin, then getZMax() returns ZMax. More...
 
Mdouble getXCenter () const
 
Mdouble getYCenter () const
 
Mdouble getZCenter () const
 
Vec3D getMin () const
 
Vec3D getMax () const
 
void setXMin (Mdouble newXMin)
 Sets the value of XMin, the lower bound of the problem domain in the x-direction. More...
 
void setYMin (Mdouble newYMin)
 Sets the value of YMin, the lower bound of the problem domain in the y-direction. More...
 
void setZMin (Mdouble newZMin)
 Sets the value of ZMin, the lower bound of the problem domain in the z-direction. More...
 
void setXMax (Mdouble newXMax)
 Sets the value of XMax, the upper bound of the problem domain in the x-direction. More...
 
void setYMax (Mdouble newYMax)
 Sets the value of YMax, the upper bound of the problem domain in the y-direction. More...
 
void setZMax (Mdouble newZMax)
 Sets the value of ZMax, the upper bound of the problem domain in the z-direction. More...
 
void setMax (const Vec3D &max)
 Sets the maximum coordinates of the problem domain. More...
 
void setMax (Mdouble, Mdouble, Mdouble)
 Sets the maximum coordinates of the problem domain. More...
 
void setDomain (const Vec3D &min, const Vec3D &max)
 Sets the minimum coordinates of the problem domain. More...
 
void setMin (const Vec3D &min)
 Sets the minimum coordinates of the problem domain. More...
 
void setMin (Mdouble, Mdouble, Mdouble)
 Sets the minimum coordinates of the problem domain. More...
 
void setTimeStep (Mdouble newDt)
 Sets a new value for the simulation time step. More...
 
Mdouble getTimeStep () const
 Returns the simulation time step. More...
 
void setNumberOfOMPThreads (int numberOfOMPThreads)
 
int getNumberOfOMPThreads () const
 
void setXBallsColourMode (int newCMode)
 Set the xballs output mode. More...
 
int getXBallsColourMode () const
 Get the xballs colour mode (CMode). More...
 
void setXBallsVectorScale (double newVScale)
 Set the scale of vectors in xballs. More...
 
double getXBallsVectorScale () const
 Returns the scale of vectors used in xballs. More...
 
void setXBallsAdditionalArguments (std::string newXBArgs)
 Set the additional arguments for xballs. More...
 
std::string getXBallsAdditionalArguments () const
 Returns the additional arguments for xballs. More...
 
void setXBallsScale (Mdouble newScale)
 Sets the scale of the view (either normal, zoom in or zoom out) to display in xballs. The default is fit to screen. More...
 
double getXBallsScale () const
 Returns the scale of the view in xballs. More...
 
void setGravity (Vec3D newGravity)
 Sets a new value for the gravitational acceleration. More...
 
Vec3D getGravity () const
 Returns the gravitational acceleration. More...
 
void setBackgroundDrag (Mdouble backgroundDrag)
 Simple access function to turn on a background drag. The force of particleVelocity*drag is applied (note, it allowd to be negaitve i.e. create energy) More...
 
const Mdouble getBackgroundDrag () const
 Return the background drag. More...
 
void setDimension (unsigned int newDim)
 Sets both the system dimensions and the particle dimensionality. More...
 
void setSystemDimensions (unsigned int newDim)
 Sets the system dimensionality. More...
 
unsigned int getSystemDimensions () const
 Returns the system dimensionality. More...
 
void setParticleDimensions (unsigned int particleDimensions)
 Sets the particle dimensionality. More...
 
unsigned int getParticleDimensions () const
 Returns the particle dimensionality. More...
 
std::string getRestartVersion () const
 This is to take into account for different Mercury versions. Returns the version of the restart file. More...
 
void setRestartVersion (std::string newRV)
 Sets restart_version. More...
 
bool getRestarted () const
 Returns the flag denoting if the simulation was restarted or not. More...
 
void setRestarted (bool newRestartedFlag)
 Allows to set the flag stating if the simulation is to be restarted or not. More...
 
bool getAppend () const
 Returns whether the "append" option is on or off. More...
 
void setAppend (bool newAppendFlag)
 Sets whether the "append" option is on or off. More...
 
Mdouble getElasticEnergy () const
 Returns the global elastic energy within the system. More...
 
Mdouble getKineticEnergy () const
 Returns the global kinetic energy stored in the system. More...
 
Mdouble getGravitationalEnergy () const
 Returns the global gravitational potential energy stored in the system. More...
 
Mdouble getRotationalEnergy () const
 JMFT Returns the global rotational energy stored in the system. More...
 
Mdouble getTotalEnergy () const
 
Mdouble getTotalMass () const
 JMFT: Return the total mass of the system, excluding fixed particles. More...
 
Vec3D getCentreOfMass () const
 JMFT: Return the centre of mass of the system, excluding fixed particles. More...
 
Vec3D getTotalMomentum () const
 JMFT: Return the total momentum of the system, excluding fixed particles. More...
 
double getCPUTime ()
 
double getWallTime ()
 
virtual void hGridInsertParticle (BaseParticle *obj UNUSED)
 
virtual void hGridUpdateParticle (BaseParticle *obj UNUSED)
 
virtual void hGridRemoveParticle (BaseParticle *obj UNUSED)
 
bool mpiIsInCommunicationZone (BaseParticle *particle)
 Checks if the position of the particle is in an mpi communication zone or not. More...
 
bool mpiInsertParticleCheck (BaseParticle *P)
 Function that checks if the mpi particle should really be inserted by the current domain. More...
 
void insertGhostParticle (BaseParticle *P)
 This function inserts a particle in the mpi communication boundaries. More...
 
void updateGhostGrid (BaseParticle *P)
 Checks if the Domain/periodic interaction distance needs to be updated and updates it accordingly. More...
 
virtual void gatherContactStatistics (unsigned int index1, int index2, Vec3D Contact, Mdouble delta, Mdouble ctheta, Mdouble fdotn, Mdouble fdott, Vec3D P1_P2_normal_, Vec3D P1_P2_tangential)
 //Not unsigned index because of possible wall collisions. More...
 
void setNumberOfDomains (std::vector< unsigned > direction)
 Sets the number of domains in x-,y- and z-direction. Required for parallel computations. More...
 
void splitDomain (DomainSplit domainSplit)
 
std::vector< unsigned > getNumberOfDomains ()
 returns the number of domains More...
 
DomaingetCurrentDomain ()
 Function that returns a pointer to the domain corresponding to the processor. More...
 
void removeOldFiles () const
 
void setMeanVelocity (Vec3D V_mean_goal)
 This function will help you set a fixed kinetic energy and mean velocity in your system. More...
 
void setMeanVelocityAndKineticEnergy (Vec3D V_mean_goal, Mdouble Ek_goal)
 This function will help you set a fixed kinetic energy and mean velocity in your system. More...
 
Mdouble getTotalVolume () const
 Get the total volume of the cuboid system. More...
 
Matrix3D getKineticStress () const
 Calculate the kinetic stress tensor in the system averaged over the whole volume. More...
 
Matrix3D getStaticStress () const
 Calculate the static stress tensor in the system averaged over the whole volume. More...
 
Matrix3D getTotalStress () const
 Calculate the total stress tensor in the system averaged over the whole volume. More...
 
virtual void handleParticleRemoval (unsigned int id)
 Handles the removal of particles from the particleHandler. More...
 
virtual void handleParticleAddition (unsigned int id, BaseParticle *p)
 
void writePythonFileForVTKVisualisation () const
 
void setWritePythonFileForVTKVisualisation (bool forceWritePythonFileForVTKVisualisation)
 
bool getWritePythonFileForVTKVisualisation () const
 
WallVTKWritergetWallVTKWriter ()
 

Public Attributes

bool haveOuterWalls = true
 
- Public Attributes inherited from DPMBase
SpeciesHandler speciesHandler
 A handler to that stores the species type i.e. LinearViscoelasticSpecies, etc. More...
 
RNG random
 This is a random generator, often used for setting up the initial conditions etc... More...
 
ParticleHandler particleHandler
 An object of the class ParticleHandler, contains the pointers to all the particles created. More...
 
ParticleHandler paoloParticleHandler
 Fake particleHandler created by Paolo needed temporary by just Paolo. More...
 
WallHandler wallHandler
 An object of the class WallHandler. Contains pointers to all the walls created. More...
 
BoundaryHandler boundaryHandler
 An object of the class BoundaryHandler which concerns insertion and deletion of particles into or from regions. More...
 
PeriodicBoundaryHandler periodicBoundaryHandler
 Internal handler that deals with periodic boundaries, especially in a parallel build. More...
 
DomainHandler domainHandler
 An object of the class DomainHandler which deals with parallel code. More...
 
InteractionHandler interactionHandler
 An object of the class InteractionHandler. More...
 
CGHandler cgHandler
 Object of the class cgHandler. More...
 
File dataFile
 An instance of class File to handle in- and output into a .data file. More...
 
File fStatFile
 An instance of class File to handle in- and output into a .fstat file. More...
 
File eneFile
 An instance of class File to handle in- and output into a .ene file. More...
 
File restartFile
 An instance of class File to handle in- and output into a .restart file. More...
 
File statFile
 An instance of class File to handle in- and output into a .stat file. More...
 
File interactionFile
 File class to handle in- and output into .interactions file. This file hold information about interactions. More...
 
Time clock_
 record when the simulation started More...
 

Private Attributes

Mdouble particleRadius
 The mean radius of the particles in the feeder. More...
 
HorizontalScrewscrew = nullptr
 Pointer to the right screw. More...
 
Mdouble rotationSpeed
 The rotation speed of the screw. More...
 
Mdouble timeMin
 The time where the screw begins to spin. More...
 
std::vector< unsigned > bladeMounts_
 The index number of all mounted blades (the blades mounts are numbered 0-11, with the i-th blade mounts at relative height q=(1+2i)/25) More...
 
Mdouble fillHeight_
 

Additional Inherited Members

- Public Types inherited from DPMBase
enum class  ReadOptions : int { ReadAll , ReadNoInteractions , ReadNoParticlesAndInteractions }
 
enum class  DomainSplit {
  X , Y , Z , XY ,
  XZ , YZ , XYZ
}
 
- Static Public Member Functions inherited from DPMBase
static void incrementRunNumberInFile ()
 Increment the run Number (counter value) stored in the file_counter (COUNTER_DONOTDEL) by 1 and store the new value in the counter file. More...
 
static int readRunNumberFromFile ()
 Read the run number or the counter from the counter file (COUNTER_DONOTDEL) More...
 
static bool areInContact (const BaseParticle *pI, const BaseParticle *pJ)
 Checks if two particle are in contact or is there any positive overlap. More...
 
- Protected Member Functions inherited from Mercury3D
void hGridFindContactsWithinTargetCell (int x, int y, int z, unsigned int l)
 Finds contacts between particles in the target cell. More...
 
void hGridFindContactsWithTargetCell (int x, int y, int z, unsigned int l, BaseParticle *obj)
 Finds contacts between the BaseParticle and the target cell. More...
 
void computeWallForces (BaseWall *w) override
 Compute contacts with a wall. More...
 
void hGridFindParticlesWithTargetCell (int x, int y, int z, unsigned int l, BaseParticle *obj, std::vector< BaseParticle * > &list)
 Finds particles within target cell and stores them in a list. More...
 
void hGridGetInteractingParticleList (BaseParticle *obj, std::vector< BaseParticle * > &list) override
 Obtains all neighbour particles of a given object, obtained from the hgrid. More...
 
void computeInternalForces (BaseParticle *obj) override
 Finds contacts with the BaseParticle; avoids multiple checks. More...
 
bool hGridHasContactsInTargetCell (int x, int y, int z, unsigned int l, const BaseParticle *obj) const
 Tests if the BaseParticle has contacts with other Particles in the target cell. More...
 
bool hGridHasParticleContacts (const BaseParticle *obj) override
 Tests if a BaseParticle has any contacts in the HGrid. More...
 
void hGridRemoveParticle (BaseParticle *obj) override
 Removes a BaseParticle from the HGrid. More...
 
void hGridUpdateParticle (BaseParticle *obj) override
 Updates the cell (not the level) of a BaseParticle. More...
 
- Protected Member Functions inherited from MercuryBase
void hGridRebuild ()
 This sets up the parameters required for the contact model. More...
 
void hGridInsertParticle (BaseParticle *obj) final
 Inserts a single Particle to current grid. More...
 
void hGridUpdateMove (BaseParticle *iP, Mdouble move) final
 Computes the relative displacement of the given BaseParticle and updates the currentMaxRelativeDisplacement_ accordingly. More...
 
void hGridActionsBeforeIntegration () override
 Resets the currentMaxRelativeDisplacement_ to 0. More...
 
void hGridActionsAfterIntegration () override
 This function has to be called before integrateBeforeForceComputation. More...
 
HGridgetHGrid ()
 Gets the HGrid used by this problem. More...
 
const HGridgetHGrid () const
 Gets the HGrid used by this problem, const version. More...
 
bool readNextArgument (int &i, int argc, char *argv[]) override
 Reads the next command line argument. More...
 
- Protected Member Functions inherited from DPMBase
virtual void computeAllForces ()
 Computes all the forces acting on the particles using the BaseInteractable::setForce() and BaseInteractable::setTorque() More...
 
virtual void computeInternalForce (BaseParticle *, BaseParticle *)
 Computes the forces between two particles (internal in the sense that the sum over all these forces is zero i.e. fully modelled forces) More...
 
virtual void computeExternalForces (BaseParticle *)
 Computes the external forces, such as gravity, acting on particles. More...
 
virtual void computeForcesDueToWalls (BaseParticle *, BaseWall *)
 Computes the forces on the particles due to the walls (normals are outward normals) More...
 
virtual void actionsOnRestart ()
 A virtual function where the users can add extra code which is executed only when the code is restarted. More...
 
virtual void actionsBeforeTimeLoop ()
 A virtual function. Allows one to carry out any operations before the start of the time loop. More...
 
virtual void actionsBeforeTimeStep ()
 A virtual function which allows to define operations to be executed before the new time step. More...
 
virtual void computeAdditionalForces ()
 A virtual function which allows to define operations to be executed prior to the OMP force collect. More...
 
virtual void actionsAfterSolve ()
 A virtual function which allows to define operations to be executed after the solve(). More...
 
void writeVTKFiles () const
 
virtual void outputXBallsData (std::ostream &os) const
 This function writes the location of the walls and particles in a format the XBalls program can read. For more information on the XBalls program, see Visualising data in xballs. More...
 
virtual void outputXBallsDataParticle (unsigned int i, unsigned int format, std::ostream &os) const
 This function writes out the particle locations into an output stream in a format the XBalls program can read. For more information on the XBalls program, see Visualising data in xballs. More...
 
virtual void writeEneHeader (std::ostream &os) const
 Writes a header with a certain format for ENE file. More...
 
virtual void writeFstatHeader (std::ostream &os) const
 Writes a header with a certain format for FStat file. More...
 
virtual void writeEneTimeStep (std::ostream &os) const
 Write the global kinetic, potential energy, etc. in the system. More...
 
virtual void initialiseStatistics ()
 
virtual void outputStatistics ()
 
void gatherContactStatistics ()
 
virtual void processStatistics (bool)
 
virtual void finishStatistics ()
 
virtual void integrateBeforeForceComputation ()
 Update particles' and walls' positions and velocities before force computation. More...
 
virtual void integrateAfterForceComputation ()
 Update particles' and walls' positions and velocities after force computation. More...
 
virtual void checkInteractionWithBoundaries ()
 There are a range of boundaries one could implement depending on ones' problem. This methods checks for interactions between particles and such range of boundaries. See BaseBoundary.h and all the boundaries in the Boundaries folder. More...
 
void setFixedParticles (unsigned int n)
 Sets a number, n, of particles in the particleHandler as "fixed particles". More...
 
virtual bool continueSolve () const
 A virtual function for deciding whether to continue the simulation, based on a user-specified criterion. More...
 
void outputInteractionDetails () const
 Displays the interaction details corresponding to the pointer objects in the interaction handler. More...
 
bool isTimeEqualTo (Mdouble time) const
 Checks whether the input variable "time" is the current time in the simulation. More...
 
void removeDuplicatePeriodicParticles ()
 Removes periodic duplicate Particles. More...
 
void checkAndDuplicatePeriodicParticles ()
 For simulations using periodic boundaries, checks and adds particles when necessary into the particle handler. See DPMBase.cc and PeriodicBoundary.cc for more details. More...
 
void performGhostParticleUpdate ()
 When the Verlet scheme updates the positions and velocities of particles, ghost particles will need an update as wel. Their status will also be updated accordingly. More...
 
void deleteGhostParticles (std::set< BaseParticle * > &particlesToBeDeleted)
 
void synchroniseParticle (BaseParticle *, unsigned fromProcessor=0)
 
void performGhostVelocityUpdate ()
 updates the final time-step velocity of the ghost particles More...
 
void setSoftStop ()
 function for setting sigaction constructor. More...
 
- Static Protected Member Functions inherited from DPMBase
static void signalHandler (int signal)
 signal handler function. More...
 

Constructor & Destructor Documentation

◆ HorizontalMixer()

HorizontalMixer::HorizontalMixer ( Mdouble  particleRadius,
Mdouble  rotationSpeed,
Mdouble  timeMin,
Mdouble  fillHeight 
)
inline

Constructor, turns off fstat output by default.

55  {
59  }
@ MULTIPLE_FILES
each time-step will be written into/read from separate files numbered consecutively: name_....
@ NO_FILE
file will not be created/read
File fStatFile
An instance of class File to handle in- and output into a .fstat file.
Definition: DPMBase.h:1483
WallHandler wallHandler
An object of the class WallHandler. Contains pointers to all the walls created.
Definition: DPMBase.h:1447
void setParticlesWriteVTK(bool writeParticlesVTK)
Sets whether particles are written in a VTK file.
Definition: DPMBase.cc:942
void setFileType(FileType fileType)
Sets the type of file needed to write into or read from. File::fileType_.
Definition: File.cc:215
Mdouble fillHeight_
Definition: HorizontalMixer.h:39
Mdouble timeMin
The time where the screw begins to spin.
Definition: HorizontalMixer.h:31
Mdouble rotationSpeed
The rotation speed of the screw.
Definition: HorizontalMixer.h:27
Mdouble particleRadius
The mean radius of the particles in the feeder.
Definition: HorizontalMixer.h:19
void setWriteVTK(FileType)
Sets whether walls are written into a VTK file.
Definition: WallHandler.cc:467

References DPMBase::fStatFile, MULTIPLE_FILES, NO_FILE, File::setFileType(), DPMBase::setParticlesWriteVTK(), WallHandler::setWriteVTK(), and DPMBase::wallHandler.

Member Function Documentation

◆ actionsAfterTimeStep()

void HorizontalMixer::actionsAfterTimeStep ( )
inlineoverridevirtual

A virtual function which allows to define operations to be executed after time step.

no implementation but can be overidden in its derived classes.

Reimplemented from DPMBase.

284  {
285  if (screw) screw->move_time(getTimeStep());
286  }
Mdouble getTimeStep() const
Returns the simulation time step.
Definition: DPMBase.cc:1250
HorizontalScrew * screw
Pointer to the right screw.
Definition: HorizontalMixer.h:23
void move_time(Mdouble dt)
Rotate the HorizontalScrew for a period dt, so that the offset_ changes with omega_*dt.
Definition: HorizontalScrew.cc:274

References DPMBase::getTimeStep(), HorizontalScrew::move_time(), and screw.

◆ introduceParticlesAtWall()

void HorizontalMixer::introduceParticlesAtWall ( )
inline
193  {
194  /* Simple run settings
195  * Nx*Ny*Nz particles are created evenly spaced between [xmin,xmax]*[ymin,ymax]*[zmin,zmax] and checked for contact with the screw
196  */
200  p0.setSpecies(s);
201  p0.setVelocity(Vec3D(0.0, 0.0, 0.0));
202  p0.setRadius(2.0*particleRadius);
204  p1.setSpecies(s);
205  p1.setVelocity(Vec3D(0.0, 0.0, 0.0));
207 
208  //number of particles that fit in domain
209  Mdouble distance;
210  Vec3D normal;
211  Vec3D p;
212  Mdouble minDistance;
213  unsigned counter = 0;
214  for (p.X = getXMin() + particleRadius; p.X < getXMax(); p.X += 2.0 * particleRadius)
215  for (p.Y = getYMin() + particleRadius; p.Y < getYMax(); p.Y += 2.0 * particleRadius)
216  for (p.Z = getZMin() + particleRadius; p.Z < fillHeight_; p.Z += 2.0 * particleRadius)
217  {
218  minDistance = p0.getRadius();
219  p0.setPosition(p);
220  for (auto w : wallHandler) {
221  //if touching the wall
222  if (w->getDistanceAndNormal(p0, distance, normal) && distance<minDistance)
223  {
224  minDistance=distance;
225  if (distance<0) break;
226  p1.setPosition(p0.getPosition()+(distance-1.0001*particleRadius)*normal);
227  }
228  }
229  if (minDistance<p0.getRadius() && minDistance>0)
230  {
232  counter++;
233  }
234  }
235  logger(INFO, "Inserted particles: %", counter);
236  }
double Mdouble
Definition: GeneralDefine.h:34
Logger< MERCURYDPM_LOGLEVEL > logger("MercuryKernel")
Definition of different loggers with certain modules. A user can define its own custom logger here.
@ INFO
std::enable_if<!std::is_pointer< U >::value, U * >::type copyAndAddObject(const U &object)
Creates a copy of a Object and adds it to the BaseHandler.
Definition: BaseHandler.h:379
T * getObject(const unsigned int id)
Gets a pointer to the Object at the specified index in the BaseHandler.
Definition: BaseHandler.h:613
void setVelocity(const Vec3D &velocity)
set the velocity of the BaseInteractable.
Definition: BaseInteractable.cc:350
virtual void setPosition(const Vec3D &position)
Sets the position of this BaseInteractable.
Definition: BaseInteractable.h:239
const Vec3D & getPosition() const
Returns the position of this BaseInteractable.
Definition: BaseInteractable.h:218
Mdouble getRadius() const
Returns the particle's radius.
Definition: BaseParticle.h:348
virtual void setRadius(Mdouble radius)
Sets the particle's radius_ (and adjusts the mass_ accordingly, based on the particle's species)
Definition: BaseParticle.cc:553
void setSpecies(const ParticleSpecies *species)
Definition: BaseParticle.cc:818
Mdouble getXMin() const
If the length of the problem domain in x-direction is XMax - XMin, then getXMin() returns XMin.
Definition: DPMBase.h:619
Mdouble getXMax() const
If the length of the problem domain in x-direction is XMax - XMin, then getXMax() returns XMax.
Definition: DPMBase.h:626
SpeciesHandler speciesHandler
A handler to that stores the species type i.e. LinearViscoelasticSpecies, etc.
Definition: DPMBase.h:1427
Mdouble getYMin() const
If the length of the problem domain in y-direction is YMax - YMin, then getYMin() returns YMin.
Definition: DPMBase.h:632
ParticleHandler particleHandler
An object of the class ParticleHandler, contains the pointers to all the particles created.
Definition: DPMBase.h:1437
Mdouble getYMax() const
If the length of the problem domain in y-direction is YMax - YMin, then getYMax() returns XMax.
Definition: DPMBase.h:638
Mdouble getZMin() const
If the length of the problem domain in z-direction is ZMax - ZMin, then getZMin() returns ZMin.
Definition: DPMBase.h:644
void clear() override
Empties the whole ParticleHandler by removing all BaseParticle.
Definition: ParticleHandler.cc:977
Definition: ParticleSpecies.h:37
A spherical particle is the most simple particle used in MercuryDPM.
Definition: SphericalParticle.h:37
Definition: Vector.h:51
Mdouble Y
Definition: Vector.h:66
Mdouble Z
Definition: Vector.h:66
Mdouble X
the vector components
Definition: Vector.h:66

References ParticleHandler::clear(), BaseHandler< T >::copyAndAddObject(), fillHeight_, BaseHandler< T >::getObject(), BaseInteractable::getPosition(), BaseParticle::getRadius(), DPMBase::getXMax(), DPMBase::getXMin(), DPMBase::getYMax(), DPMBase::getYMin(), DPMBase::getZMin(), INFO, logger, DPMBase::particleHandler, particleRadius, BaseInteractable::setPosition(), BaseParticle::setRadius(), BaseParticle::setSpecies(), BaseInteractable::setVelocity(), DPMBase::speciesHandler, DPMBase::wallHandler, Vec3D::X, Vec3D::Y, and Vec3D::Z.

◆ introduceParticlesInDomain()

void HorizontalMixer::introduceParticlesInDomain ( Mdouble  polydispersity = 1)
inline
238  {
239  /* Simple run settings
240  * Nx*Ny*Nz particles are created evenly spaced between [xmin,xmax]*[ymin,ymax]*[zmin,zmax] and checked for contact with the screw
241  */
245  p0.setSpecies(s);
246  p0.setVelocity(Vec3D(0.0, 0.0, 0.0));
248 
249  //CHANGED BY BERT need ~ 1.5 times cubic packing fraction to get HCP packing, assume particles are more HCP packed than cubic
250  Mdouble distance;
251  Vec3D normal;
252  Vec3D p;
253  Mdouble minDistance;
254  unsigned counter = 0;
255  for (p.X = getXMin() + particleRadius; p.X < getXMax(); p.X += 2.0 * particleRadius)
256  for (p.Y = getYMin() + particleRadius; p.Y < getYMax(); p.Y += 2.0 * particleRadius)
257  for (p.Z = getZMin() + particleRadius; p.Z < fillHeight_; p.Z += 2.0 * particleRadius) //Changed Cubic to HCP here
258  {
259  bool touch = false;
260  p0.setPosition(p);
261  for (auto w : wallHandler) {
262  //if touching the wall
263  if (w->getDistanceAndNormal(p0, distance, normal))
264  {
265  touch = true;
266  break;
267  }
268  }
269  if (!touch) {
272  counter++;
273  }
274  }
275  logger(INFO, "Inserted particles: %", counter);
276  }
RNG random
This is a random generator, often used for setting up the initial conditions etc.....
Definition: DPMBase.h:1432
Mdouble getRandomNumber()
This is a random generating routine can be used for initial positions.
Definition: RNG.cc:143

References ParticleHandler::clear(), BaseHandler< T >::copyAndAddObject(), fillHeight_, BaseHandler< T >::getObject(), RNG::getRandomNumber(), DPMBase::getXMax(), DPMBase::getXMin(), DPMBase::getYMax(), DPMBase::getYMin(), DPMBase::getZMin(), INFO, logger, DPMBase::particleHandler, particleRadius, DPMBase::random, BaseInteractable::setPosition(), BaseParticle::setRadius(), BaseParticle::setSpecies(), BaseInteractable::setVelocity(), DPMBase::speciesHandler, DPMBase::wallHandler, Vec3D::X, Vec3D::Y, and Vec3D::Z.

Referenced by setupInitialConditions().

◆ introduceSingleParticle()

void HorizontalMixer::introduceSingleParticle ( Vec3D  p)
inline
178  {
179  /* Simple run settings
180  * Nx*Ny*Nz particles are created evenly spaced between [xmin,xmax]*[ymin,ymax]*[zmin,zmax] and checked for contact with the screw
181  */
185  p0.setSpecies(s);
186  p0.setVelocity(Vec3D(0.0, 0.0, 0.0));
188  p0.setPosition(p+Vec3D(0,0,particleRadius));
190  logger(INFO, "Inserted single particle ");
191  }

References ParticleHandler::clear(), BaseHandler< T >::copyAndAddObject(), BaseHandler< T >::getObject(), INFO, logger, DPMBase::particleHandler, particleRadius, BaseInteractable::setPosition(), BaseParticle::setRadius(), BaseParticle::setSpecies(), BaseInteractable::setVelocity(), and DPMBase::speciesHandler.

◆ printTime()

void HorizontalMixer::printTime ( ) const
inlineoverridevirtual

Displays the current simulation time and the maximum simulation duration.

Gets and prints the current simulation time (getTime()) and the currently set maximum simulation time (getTimeMax()) .

Reimplemented from DPMBase.

279  {
280  logger(INFO, "t=%3.6, tmax=%3.6, EneRatio=%3.6", getTime(), getTimeMax(),
282  }
Mdouble getTime() const
Returns the current simulation time.
Definition: DPMBase.cc:808
Mdouble getKineticEnergy() const
Returns the global kinetic energy stored in the system.
Definition: DPMBase.cc:1544
Mdouble getTimeMax() const
Returns the maximum simulation duration.
Definition: DPMBase.cc:888
Mdouble getElasticEnergy() const
Returns the global elastic energy within the system.
Definition: DPMBase.cc:1530

References DPMBase::getElasticEnergy(), DPMBase::getKineticEnergy(), DPMBase::getTime(), DPMBase::getTimeMax(), INFO, and logger.

◆ setOuterWalls()

virtual void HorizontalMixer::setOuterWalls ( const ParticleSpecies s,
Mdouble  outerBaseRadius,
Mdouble  screwCenter,
Mdouble  outerTopCenter,
Mdouble  outerTopRadius,
Mdouble  outerTopHeight 
)
inlinevirtual

sets other walls that define the outer boundary

Reimplemented in HorizontalMixerWalls.

114  {
115  //cylindrical wall
116  Vec3D normal = (Vec3D(outerTopCenter,0,outerTopHeight)-Vec3D(screwCenter,0,0));
117  normal.normalise();
118  Vec3D position = Vec3D(screwCenter,0,0);
119  Vec3D normalWall = Vec3D(outerTopHeight,0,outerBaseRadius-outerTopRadius);
120  normalWall.normalise();
121  Vec3D positionWall = Vec3D(outerBaseRadius,0,0);
122  AxisymmetricIntersectionOfWalls outerWall(position, normal, {{normalWall,positionWall}},s);
123  auto rightSide = wallHandler.copyAndAddObject(outerWall);
124 
125  //bottom plate
126  auto bottomPlate = wallHandler.copyAndAddObject
127  (InfiniteWall(Vec3D(0,0,-1),Vec3D(0,0,getZMin()),s));
128  }
Use AxisymmetricIntersectionOfWalls to Screw Screw::read Screw::read Screw::read define axisymmetric ...
Definition: AxisymmetricIntersectionOfWalls.h:126
A infinite wall fills the half-space {point: (position_-point)*normal_<=0}.
Definition: InfiniteWall.h:48
void normalise()
Makes this Vec3D unit length.
Definition: Vector.cc:123

References BaseHandler< T >::copyAndAddObject(), DPMBase::getZMin(), Vec3D::normalise(), and DPMBase::wallHandler.

Referenced by setupInitialConditions().

◆ setScrewCore()

virtual void HorizontalMixer::setScrewCore ( const ParticleSpecies s,
Mdouble  screwCenter,
Mdouble  screwBaseHeight,
Mdouble  coreTopHeight,
Mdouble  coreTopRadius,
Mdouble  coreBottomHeight,
Mdouble  coreBottomRadius 
)
inlinevirtual

sets four walls, leftScrewCore, rightScrewCore, leftScrewBottom, rightScrewBottom

Reimplemented in HorizontalMixerWalls.

95  {
96  //the inner, thinner core cylinder in the screw
97  auto screwCore = wallHandler.copyAndAddObject
98  (AxisymmetricIntersectionOfWalls(Vec3D(screwCenter,0,0),Vec3D(0,0,1),
99  {{Vec3D(-.3,0,-1),Vec3D(coreTopRadius,0,coreTopHeight)},//slightly slant top, so particles roll off
100  {Vec3D(-1,0,0),Vec3D(coreTopRadius,0,0)}},s));
101  screwCore->setAngularVelocity(Vec3D(0,0,rotationSpeed));
102 
103  //the bottom, thicker core cylinder in the screw
104  auto screwBottom = wallHandler.copyAndAddObject
105  (AxisymmetricIntersectionOfWalls(Vec3D(screwCenter,0,0),Vec3D(0,0,1),
106  {{Vec3D(0,0,-1),Vec3D(0,0,coreBottomHeight)},
107  {Vec3D(-1,0,0),Vec3D(coreBottomRadius,0,0)}},s));
108  screwBottom->setAngularVelocity(Vec3D(0,0,rotationSpeed));
109  }

References BaseHandler< T >::copyAndAddObject(), rotationSpeed, and DPMBase::wallHandler.

Referenced by setupInitialConditions().

◆ setScrewWalls()

void HorizontalMixer::setScrewWalls ( const ParticleSpecies s,
Mdouble  screwCenter,
Mdouble  screwBaseHeight,
Mdouble  screwBaseRadius,
Mdouble  screwTopHeight,
Mdouble  windingLength,
Mdouble  minR,
Mdouble  lowerR,
Mdouble  diffR,
Mdouble  thickness 
)
inline

sets four walls, leftScrew, rightScrew, leftBaseScrew, rightBaseScrew

65  {
66  //Screws are dx=2200 apart, outerTopHeight height 1236, bottom height 110 (plus cap)
67  //winding width 411
68  Vec3D start = Vec3D(screwCenter, 0, screwBaseHeight);
69  Mdouble length = screwTopHeight-screwBaseHeight;
70  Mdouble numTurns = length/windingLength;
71  //create a screw that increases its length clockwise, just like (sin(t),cos(t), t).
72  // screw starts at height 0.11 until 1.197, distance 1.1 from the center in negative x-direction, making one turn each 0.411.
73  // rotation speed 1.0, thickness as small as possible, radius function is piecewise linear, decreasing from 0.6 to 0.4.
74  // screw starts at height 0.11 until 1.197, making one turn each 0.411.
76  (HorizontalScrew(start, length, minR, lowerR, diffR, numTurns, rotationSpeed/2.0/constants::pi, thickness, s));
77  //todo: change orientation of one screw
79  if (screw) screw->move_time(40);
80 
81  Mdouble sinA2Max = 0.25;
82  auto baseScrew = wallHandler.copyAndAddObject
83  (HorizontalBaseScrew(Vec3D(screwCenter,0,0),Vec3D(0,0,1),
84  {{Vec3D(0,0,-1),Vec3D(0,0,screwBaseHeight)},
85  {Vec3D(-1,0,0),Vec3D(screwBaseRadius,0,0)}},s,sinA2Max,timeMin));
86  baseScrew->setAngularVelocity(Vec3D(0,0,rotationSpeed));
87  //baseScrew->rotate(Vec3D(0,0,100));
88 
89  }
void setAngularVelocity(const Vec3D &angularVelocity)
set the angular velocity of the BaseInteractble.
Definition: BaseInteractable.cc:360
A HorizontalBaseScrew is a copy of AxisymmetricIntersectionOfWalls, with an additional,...
Definition: HorizontalBaseScrew.h:39
This function defines an Archimedes' screw in the z-direction from a (constant) starting point,...
Definition: HorizontalScrew.h:39
const Mdouble pi
Definition: ExtendedMath.h:45

References BaseHandler< T >::copyAndAddObject(), HorizontalScrew::move_time(), constants::pi, rotationSpeed, screw, BaseInteractable::setAngularVelocity(), timeMin, and DPMBase::wallHandler.

Referenced by setupInitialConditions().

◆ setupInitialConditions()

void HorizontalMixer::setupInitialConditions ( )
inlineoverridevirtual

This function allows to set the initial conditions for our problem to be solved, by default particle locations are randomly set. Remember particle properties must also be defined here.

A virtual function with no implementation but can be overriden.

Todo:
I (Anthony) wants to change this to be an external function. This has a lot of advantages especially when using copy-constructors. This is a major change and will break other codes, so therefore has to be done carefully.

This sets up the particles initial conditions it is as you expect the user to override this. By default the particles are randomly distributed

Here wall properties are set

Reimplemented from DPMBase.

Reimplemented in HorizontalMixerWalls.

131  {
134 
135  // First, we define the screw
136  // bottom radius 0.974, outerTopHeight 1210, center-bottom x=1.21, center-outerTopHeight x=1.3385
137  Mdouble screwCenter = 1.21; //changed from 1.1
138  Mdouble screwBaseHeight = 0.11; //same
139  Mdouble screwTopHeight = 1.5; //changed from 1.155 //max. Height of the screw/somehow, screw is still felt on top of the core
140  Mdouble windingLength = 0.5; //changed from 0.411
141  Mdouble minR = 0.54;//change from 0.4 //radius in upper part
142  Mdouble lowerR = 1.195; //change from 0.6 ??//radius in upper part
143  Mdouble diffR = -0.6; //changed from -0.3 //radius in upper part
144  Mdouble thickness = 0.5*particleRadius; //needs change?
145 
146  //bottom screw core radius 270, outerTopHeight height 336
147  //outerTopHeight screw core radius ~170, outerTopHeight height 1236
148  Mdouble coreTopHeight = 1.5; //changed from 1236
149  Mdouble coreTopRadius = 0.17; //same
150  Mdouble coreBottomHeight = .491; //changed from 0.356
151  Mdouble coreBottomRadius = 0.27; //same
152  Mdouble screwBaseRadius = 1.0; //changed from 0.9
153 
154  //the cylindrical container:
155  Mdouble outerBaseRadius =1.208; //changed from 0.974
156  Mdouble outerTopCenter = screwCenter;// should be 1.3385, but for that I need to correct the implementation of orientation
157  Mdouble outerTopRadius =1.329; //changed from 1.21
158  Mdouble outerTopHeight = 1.995; // changed from 2.252
159 
160  setXMax(screwCenter+outerTopRadius);
161  setYMax(outerTopRadius);
162  setZMax(outerTopHeight);
163  setXMin(screwCenter-outerTopRadius);
164  setYMin(-getYMax());
165  setZMin(0.0);
166 
167  setScrewWalls(s, screwCenter, screwBaseHeight, screwBaseRadius, screwTopHeight, windingLength, minR, lowerR, diffR, thickness);
168  setScrewCore(s, screwCenter, screwBaseHeight, coreTopHeight, coreTopRadius, coreBottomHeight, coreBottomRadius);
169  if (haveOuterWalls) setOuterWalls(s, outerBaseRadius, screwCenter, outerTopCenter, outerTopRadius, outerTopHeight);
170 
171  //introduceSingleParticle(Vec3D(screwCenter,0.5*coreTopRadius,coreTopHeight));
172  //introduceParticlesAtWall();
174 
175  setGravity(Vec3D(0,0,-9.8));
176  }
void setYMin(Mdouble newYMin)
Sets the value of YMin, the lower bound of the problem domain in the y-direction.
Definition: DPMBase.cc:1034
void setYMax(Mdouble newYMax)
Sets the value of YMax, the upper bound of the problem domain in the y-direction.
Definition: DPMBase.cc:1191
void setZMin(Mdouble newZMin)
Sets the value of ZMin, the lower bound of the problem domain in the z-direction.
Definition: DPMBase.cc:1058
void setXMax(Mdouble newXMax)
Sets the value of XMax, the upper bound of the problem domain in the x-direction.
Definition: DPMBase.cc:1165
void setZMax(Mdouble newZMax)
Sets the value of ZMax, the upper bound of the problem domain in the z-direction.
Definition: DPMBase.cc:1217
void setXMin(Mdouble newXMin)
Sets the value of XMin, the lower bound of the problem domain in the x-direction.
Definition: DPMBase.cc:1010
void setGravity(Vec3D newGravity)
Sets a new value for the gravitational acceleration.
Definition: DPMBase.cc:1383
void introduceParticlesInDomain(Mdouble polydispersity=1)
Definition: HorizontalMixer.h:238
virtual void setOuterWalls(const ParticleSpecies *s, Mdouble outerBaseRadius, Mdouble screwCenter, Mdouble outerTopCenter, Mdouble outerTopRadius, Mdouble outerTopHeight)
sets other walls that define the outer boundary
Definition: HorizontalMixer.h:112
virtual void setScrewCore(const ParticleSpecies *s, Mdouble screwCenter, Mdouble screwBaseHeight, Mdouble coreTopHeight, Mdouble coreTopRadius, Mdouble coreBottomHeight, Mdouble coreBottomRadius)
sets four walls, leftScrewCore, rightScrewCore, leftScrewBottom, rightScrewBottom
Definition: HorizontalMixer.h:92
void setScrewWalls(const ParticleSpecies *s, Mdouble screwCenter, Mdouble screwBaseHeight, Mdouble screwBaseRadius, Mdouble screwTopHeight, Mdouble windingLength, Mdouble minR, Mdouble lowerR, Mdouble diffR, Mdouble thickness)
sets four walls, leftScrew, rightScrew, leftBaseScrew, rightBaseScrew
Definition: HorizontalMixer.h:62
bool haveOuterWalls
Definition: HorizontalMixer.h:45

References BaseHandler< T >::getObject(), DPMBase::getYMax(), haveOuterWalls, introduceParticlesInDomain(), particleRadius, DPMBase::setGravity(), setOuterWalls(), setScrewCore(), setScrewWalls(), DPMBase::setXMax(), DPMBase::setXMin(), DPMBase::setYMax(), DPMBase::setYMin(), DPMBase::setZMax(), DPMBase::setZMin(), and DPMBase::speciesHandler.

Referenced by HorizontalMixerWalls::setupInitialConditions().

◆ writeScript()

void HorizontalMixer::writeScript ( )
inline
288  {
289  logger(INFO,"Writing matlab script % to color the particles",getName() + ".m");
290  helpers::writeToFile(getName() + ".m", "cd " + helpers::getPath() + "\n"
291  "%% read in first file, to get the initial positions\n"
292  "f = fopen('" + getName() + "_7.vtu');\n"
293  "% header\n"
294  "line = textscan(f,'%s %s %s %s %s %s %s',1,'Delimiter','\\n');\n"
295  "% number of particles\n"
296  "N = textscan(line{5}{1}(24:end),'%d',1); N=N{1};\n"
297  "% positions\n"
298  "P = textscan(f,'%f %f %f',N);\n"
299  "%scatter(P{1},P{2})\n"
300  "fclose(f);\n"
301  "%% define a new speciesIndex, based on position, to color particles\n"
302  "index = 1000*P{1};\n"
303  "%% read in second file, a write out again with modified index\n"
304  "f = fopen('" + getName() + "_250.vtu');\n"
305  "g = fopen('Particle.vtu','w');\n"
306  "% header\n"
307  "line = textscan(f,'%s',3*N+15,'Delimiter','\\n');\n"
308  "for i=1:length(line{1}), fprintf(g,'%s\\n',line{1}{i}); end\n"
309  "% i/o indSpecies\n"
310  "textscan(f,'%f',N,'Delimiter','\\n');\n"
311  "fprintf(g,'%f\\n',index);\n"
312  "% footer\n"
313  "line = textscan(f,'%s','Delimiter','\\n');\n"
314  "for i=1:length(line{1}), fprintf(g,'%s\\n',line{1}{i}); end\n"
315  "fclose(f);\n"
316  "fclose(g);");
317  }
const std::string & getName() const
Returns the name of the file. Does not allow to change it though.
Definition: DPMBase.cc:399
std::string getPath()
Definition: FileIOHelpers.cc:224
bool writeToFile(std::string filename, std::string filecontent)
Writes a string to a file.
Definition: FileIOHelpers.cc:58

References DPMBase::getName(), helpers::getPath(), INFO, logger, and helpers::writeToFile().

Referenced by main().

Member Data Documentation

◆ bladeMounts_

std::vector<unsigned> HorizontalMixer::bladeMounts_
private

The index number of all mounted blades (the blades mounts are numbered 0-11, with the i-th blade mounts at relative height q=(1+2i)/25)

◆ fillHeight_

Mdouble HorizontalMixer::fillHeight_
private

◆ haveOuterWalls

bool HorizontalMixer::haveOuterWalls = true

determines if outerWalls are included (useful for printing)

Referenced by setupInitialConditions().

◆ particleRadius

Mdouble HorizontalMixer::particleRadius
private

The mean radius of the particles in the feeder.

Referenced by introduceParticlesAtWall(), introduceParticlesInDomain(), introduceSingleParticle(), and setupInitialConditions().

◆ rotationSpeed

Mdouble HorizontalMixer::rotationSpeed
private

The rotation speed of the screw.

Referenced by setScrewCore(), and setScrewWalls().

◆ screw

HorizontalScrew* HorizontalMixer::screw = nullptr
private

Pointer to the right screw.

Referenced by actionsAfterTimeStep(), and setScrewWalls().

◆ timeMin

Mdouble HorizontalMixer::timeMin
private

The time where the screw begins to spin.

Referenced by setScrewWalls().


The documentation for this class was generated from the following file: