ParhamiMcKeepingParticlePairSelfTest.cpp File Reference

#include "Mercury3D.h"
#include "Species/HertzianViscoelasticSlidingFrictionParhamiMcMeekingSinterSpecies.h"
#include "Walls/InfiniteWall.h"
#include "Boundaries/PeriodicBoundary.h"
#include "Walls/AxisymmetricIntersectionOfWalls.h"

Functions
int	main (int argc UNUSED, char *argv[] UNUSED)

Function Documentation

main()

int main	(	int argc	UNUSED,
		char *argv[]	UNUSED
	)

                                               {
    //create new simulation; as no specialised functions are needed, 
    //Mercury3D is used directly instead of creating a derived class as usual. 
    Mercury3D ps;
 
    //add Species
    HertzianViscoelasticSlidingFrictionParhamiMcMeekingSinterSpecies s;
    s.setDensity(3950e18);
    s.setEffectiveElasticModulus(0); //?? This seems to correspond to dt~tc/50
    s.setDissipation(0); //?
    // mass 2e-21 => fg = 2e-20
    // k=1e-04 => del=fg/k = tiny
    Mdouble alpha = 4.5;
    Mdouble beta = 4;
    Mdouble atomicVolume = 8.47e-30; /*Omega*/
    Mdouble surfaceEnergy = 1.1; /*gamma_s*/
    Mdouble thicknessDiffusion = 1.3e-8; /*deltaB*D0B*/
    Mdouble activationEnergy = 475e3 /*QB*/;
    Mdouble temperature = 1473; /*T*/
    Mdouble pseudoSlidingFrictionCoefficient = 0.01; /*\etaPart*/
    s.set(alpha, beta, atomicVolume, surfaceEnergy, thicknessDiffusion, activationEnergy, temperature, pseudoSlidingFrictionCoefficient);
    ps.speciesHandler.copyAndAddObject(s);
 
    //add particle
    SphericalParticle p;
    p.setSpecies(ps.speciesHandler.getObject(0));
    p.setRadius(50e-9);
    p.setPosition(p.getRadius() * Vec3D(0, 0, 1.0-1e-6*1e-3));
    ps.particleHandler.copyAndAddObject(p);
 
    //add second particle
    p.setPosition(p.getRadius() * Vec3D(0, 0, -1.0));
    ps.particleHandler.copyAndAddObject(p);
    
    //set time-stepping and output parameters
    ps.setFileType(FileType::ONE_FILE);
    ps.setXBallsAdditionalArguments(" -v0 -solidf ");
    ps.setGravity(Vec3D(0, 0, 0));
    ps.setTimeStep(1e-4);
    ps.setSaveCount(1000);
    ps.setTimeMax(10);
    ps.setMin(50e-9 * Vec3D(-1, -1, -2));
    ps.setMax(50e-9 * Vec3D(1, 1, 2));
    ps.setName("ParhamiMcKeepingParticlePairSelfTest");
    
    //run
    ps.solve();
    
    logger(INFO, "Execute 'gnuplot ParhamiMcKeepingParticlePairSelfTest.gnu' to view output");
    helpers::writeToFile("ParhamiMcKeepingParticlePairSelfTest.gnu",
                         "set xlabel 't [s]'\n"
                         "set ylabel 'delta/d'\n"
                         "p 'ParhamiMcKeepingParticlePairSelfTest.fstat' u 1:($7/1e-7) every 5::3 w lp\n"
    );
    
    
}

References mathsFunc::beta(), BaseHandler< T >::copyAndAddObject(), BaseHandler< T >::getObject(), BaseParticle::getRadius(), INFO, logger, ONE_FILE, DPMBase::particleHandler, ParticleSpecies::setDensity(), DPMBase::setFileType(), DPMBase::setGravity(), DPMBase::setMax(), DPMBase::setMin(), DPMBase::setName(), BaseInteractable::setPosition(), BaseParticle::setRadius(), DPMBase::setSaveCount(), BaseParticle::setSpecies(), DPMBase::setTimeMax(), DPMBase::setTimeStep(), DPMBase::setXBallsAdditionalArguments(), DPMBase::solve(), DPMBase::speciesHandler, and helpers::writeToFile().