ChuteDemo.cpp File Reference

#include <iostream>
#include <Species/LinearViscoelasticSpecies.h>
#include "Chute.h"

Functions
int	main ()
	[ChuteDemo:include] More...

Function Documentation

main()

int main

(

)

[ChuteDemo:include]

[ChuteDemo:include]

[ChuteDemo:initial]

[ChuteDemo:initial]

[ChuteDemo:particles]

[ChuteDemo:particles]

[ChuteDemo:chute]

[ChuteDemo:chute]

[ChuteDemo:inflow]

[ChuteDemo:inflow]

{
    
    // Problem parameters
    Chute problem;
    
    problem.setName("ChuteDemo");   // data output file name
    problem.setGravity({0,-1,0});
    problem.setSaveCount(102);      // number of time steps skipped between saves
    Mdouble tc = 2.5e-3;            // collision time
    problem.setTimeStep(0.02 * tc); // actual time step
    problem.setTimeMax(0.5);        // maximum time
                                    // NB: number of time steps saved to output files
                                    // is timeMax/(timeStep*saveCount)
    
    // Particle radii
    problem.setFixedParticleRadius(0.001);  // radius of fixed chute bottom particles
    problem.setInflowParticleRadius(0.001); // radius of (monodisperse) inflow particles
 
    // Particle species
    LinearViscoelasticSpecies species;              // initialise species
    species.setHandler(&problem.speciesHandler);    // assign problem species handler to species
    species.setDensity(2000);                       // particle density
    species.setCollisionTimeAndRestitutionCoefficient( tc, 
            0.8, species.getMassFromRadius(problem.getInflowParticleRadius())); // material properties
    problem.speciesHandler.copyAndAddObject(species);   // assign species to problem species handler
    
 
    // Chute properties
    problem.setChuteAngle(30.0);                    // set angle of chute relative to horizontal
    problem.setXMax(0.1);                           // chute length = 0.1
    problem.setYMax(2.0 * problem.getInflowParticleRadius()); // chute width = 1 particle diameter
 
    // Inflow properties
    problem.setInflowHeight(0.1);                   // particle inflow between 0 <= Z <= 0.1
    problem.setInflowVelocity(0.1);                 // particle inflow mean velocity
    problem.setInflowVelocityVariance(0.02);        // particle inflow velocity variance (in ratio of the mean velocity)
    //Write paraview data
    //problem.setParticlesWriteVTK(true);
    //problem.wallHandler.setWriteVTK(true);
 
 
    /*problem.setParticlesWriteVTK(true);
    problem.wallHandler.setWriteVTK(true);*/
 
 
    //solve
    problem.solve();
} // the end

References BaseHandler< T >::copyAndAddObject(), Chute::getInflowParticleRadius(), ParticleSpecies::getMassFromRadius(), Chute::setChuteAngle(), LinearViscoelasticNormalSpecies::setCollisionTimeAndRestitutionCoefficient(), ParticleSpecies::setDensity(), Chute::setFixedParticleRadius(), DPMBase::setGravity(), BaseSpecies::setHandler(), Chute::setInflowHeight(), Chute::setInflowParticleRadius(), Chute::setInflowVelocity(), Chute::setInflowVelocityVariance(), DPMBase::setName(), DPMBase::setSaveCount(), DPMBase::setTimeMax(), DPMBase::setTimeStep(), DPMBase::setXMax(), DPMBase::setYMax(), DPMBase::solve(), and DPMBase::speciesHandler.