InclinedPlaneUnitTest.cpp File Reference

#include "DPMBase.h"
#include "Particles/SphericalParticle.h"
#include "Walls/InfiniteWall.h"
#include <iostream>
#include <Species/LinearViscoelasticSlidingFrictionSpecies.h>

Classes
class	InclinedPlane

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

Function Documentation

main()

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

Start off my solving the default problem

{
    logger(INFO, "Single particle rolling on a bottom plate");
    InclinedPlane problem;
    
    auto species = problem.speciesHandler.copyAndAddObject(LinearViscoelasticSlidingFrictionSpecies());
    problem.setName("InclinedPlane");
    problem.setFileType(FileType::NO_FILE); //comment if you want file output
    problem.setSaveCount(50000);
    problem.setSystemDimensions(2);
    problem.setParticleDimensions(3);
    Mdouble theta = 15.0*constants::pi/180.0;
    problem.setGravity(9.8*Vec3D(std::sin(theta),-std::cos(theta),0.0));
    species->setDensity(2000);
    species->setStiffness(10000);
    species->setDissipation(0);
    species->setSlidingStiffness(10000);
    species->setSlidingDissipation(0);
    species->setSlidingFrictionCoefficient(0.5);
    //species->setRollingStiffness(10000);
    //species->setRollingDissipation(0);
    //species->setRollingFrictionCoefficient(0.5);
    //tc=7e-5
    problem.setTimeStep(0.02*species->getCollisionTime(species->getMassFromRadius(0.005)));
    problem.setTimeMax(1.0);
    problem.setXMax(0.1);
    problem.setYMax(0.1);
    problem.setZMax(0.1);
    problem.solve(argc, argv);
    //problem.write(std::cout, true);
    const Vec3D v = problem.particleHandler.getObject(0)->getVelocity();
    logger(INFO,"v_x(t_max)=% should be ~1.81",v.X);
    logger(INFO,"v_y(t_max)=% should be ~0",v.Y);
    helpers::check(v.X,1.81167,1e-4,"v_x");
    helpers::check(v.Y,0.00234107,1e-4,"v_y");
 
}

References helpers::check(), BaseHandler< T >::copyAndAddObject(), mathsFunc::cos(), BaseHandler< T >::getObject(), BaseInteractable::getVelocity(), INFO, logger, NO_FILE, DPMBase::particleHandler, constants::pi, DPMBase::setFileType(), DPMBase::setGravity(), DPMBase::setName(), DPMBase::setParticleDimensions(), DPMBase::setSaveCount(), DPMBase::setSystemDimensions(), DPMBase::setTimeMax(), DPMBase::setTimeStep(), DPMBase::setXMax(), DPMBase::setYMax(), DPMBase::setZMax(), mathsFunc::sin(), DPMBase::solve(), DPMBase::speciesHandler, Vec3D::X, and Vec3D::Y.