PeriodicBoundaryUnitTestMPI.cpp File Reference

#include "Mercury3D.h"
#include <iostream>
#include "Species/LinearViscoelasticFrictionSpecies.h"
#include <cstdlib>
#include "Boundaries/PeriodicBoundary.h"

Classes
class	MpiPeriodicBoundaryUnitTest

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

Function Documentation

main()

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

{
    //Create the problem
    MpiPeriodicBoundaryUnitTest problem;
    problem.setName("PeriodicBoundaryUnitTestMPI");
 
    //Create a species
    LinearViscoelasticFrictionSpecies* species = problem.speciesHandler.copyAndAddObject(LinearViscoelasticFrictionSpecies());
    species->setDensity(1.0);
 
    //Set domain accordingly (domain boundaries are not walls!)
    problem.setXMin(-10.0);
    problem.setXMax(10.0);
    problem.setYMin(-10.0);
    problem.setYMax(10.0);
    problem.setZMin(0.0);
    problem.setZMax(100.0);
 
    //specify particle properties
    species->setDensity(6.0/constants::pi);
 
    //specify body forces
    problem.setGravity(Vec3D(0.0, 0.0, 0.0));
 
    //Set the number of domains for parallel decomposition
    problem.setNumberOfDomains({2,1,1});
 
    //specify contact properties
    //normal forces
    species->setStiffness(1e5);
    species->setDissipation(0.63);
    //tangential (sliding) forces
    species->setSlidingFrictionCoefficient(0.5);
    species->setSlidingStiffness(1.2e4);
    species->setSlidingDissipation(0.16);
    //tangential (rolling) torques
    species->setRollingFrictionCoefficient(0.2);
    species->setRollingStiffness(1.2e4);
    species->setRollingDissipation(6.3e-2);
    //normal (torsion/spin) torques
    species->setTorsionFrictionCoefficient(0.1);
    species->setTorsionStiffness(1.2e4);
    species->setSlidingDissipation(6.3e-2);
 
    //set other simulation parameters
    //Mdouble MinParticleMass = species->getDensity()*4.0 / 3.0 * constants::pi ;
    //Mdouble tc = species->getCollisionTime(MinParticleMass);
    Mdouble tc = 0.02;
    logger(INFO,"tc: %",tc);
    problem.setTimeStep(tc / 50.0);
    problem.setTimeMax(0.2);
    problem.setSaveCount(25); //used to be 500
 
    //Set output to paraview
    problem.setParticlesWriteVTK(true);
    
    problem.solve(argc, argv);
 
    return 0;
}

References INFO, logger, constants::pi, problem, ParticleSpecies::setDensity(), LinearViscoelasticNormalSpecies::setDissipation(), FrictionSpecies::setRollingDissipation(), FrictionSpecies::setRollingFrictionCoefficient(), FrictionSpecies::setRollingStiffness(), SlidingFrictionSpecies::setSlidingDissipation(), SlidingFrictionSpecies::setSlidingFrictionCoefficient(), SlidingFrictionSpecies::setSlidingStiffness(), LinearViscoelasticNormalSpecies::setStiffness(), FrictionSpecies::setTorsionFrictionCoefficient(), and FrictionSpecies::setTorsionStiffness().