1Particle4WallsOldRestartVersionUnitTest.cpp

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//Copyright (c) 2013-2014, The MercuryDPM Developers Team. All rights reserved.
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#include <Math/Helpers.h>
#include "DPMBase.h"

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

    helpers::writeToFile("1Particle4WallsOldRestartVersionUnitTest.restart",
        "restart_version 3\n"
        "name 1Particle4WallsOldRestartVersionUnitTest\n"
        "xmin 0 xmax 1 ymin 0 ymax 1.1 zmin 0 zmax 1\n"
        "dt 0.0001 t 0 tmax 0.01 save_count_data 5 save_count_ene 5 save_count_stat 5 save_count_fstat 5\n"
        "dim 3 gravity 0 0 0\n"
        "options_fstat 1 options_data 1 options_ene 1 options_restart 1\n"
        "Species 2\n"
        "k 200000 disp 50 kt 57142.857 dispt 0 mu 0.5 rho 1.9098593 dim_particle 3\n"
        "k 200000 disp 50 kt 57142.857 dispt 0 mu 0.5 rho 1.9098593 dim_particle 3\n"
        "k 200000 disp 50 kt 57142.857 dispt 0 mu 0.5 (mixed)\n"
        "Walls 4\n"
        "numFiniteWalls 0 normal -1 0 0 position 0\n"
        "numFiniteWalls 0 normal  1 0 0 position .96\n"
        "numFiniteWalls 0 normal 0 0 -1 position 0\n"
        "numFiniteWalls 0 normal 0 0  1 position .96\n"
        "WallsPeriodic 1\n"
        "normal 0 1 0 pos_left 0 pos_right 1.1 shift 0 1.1 0\n"
        "Particles 1\n"
        "0.48 0 0.48  0 0 0  0.5  0 0 0  0 60 0  1 10 0\n"
        "NUM_BUCKETS 16 HGRID_MAX_LEVELS 1 MIN_CELL_SIZE 1 SPHERE_TO_CELL_RATIO 1 CELL_TO_CELL_RATIO 2\n"
        "FixedParticleRadius 0.5 MinInflowParticleRadius 0.5 MaxInflowParticleRadius 0.5\n"
        "RandomizedBottom 2 ChuteAngle 20 max_failed 1 num_created 2000\n"
        "InflowVelocity 0.1 InflowVelocityVariance 0 InflowHeight 10\n"
        );
    DPMBase problem;
    problem.setName("1Particle4WallsOldRestartVersionUnitTest");
    problem.readRestartFile();
    problem.setAppend(false);
    problem.solve();
    problem.writeRestartFile();
    
    //Now check the rotational energy in the system; it should loose some rotational energy in the first loop due to
    //sliding, then conserve energy as no tangential dissipation is used.
    //gnuplot:
    // p '1Particle4WallsRestartUnitTest_restart.ene' u 1:4 w l t 'rotational energy', '1Particle4WallsRestartUnitTest_restart.ene' u 1:($3+$4+$5-160) w l t 'total energy - normal elastic energy'
}