add alternative files for one2one coupling in ErgunTestMPI case

for testing one2one coupling model

tutorials/cfdemSolverPiso/ErgunTestMPI/CFD/constant/couplingProperties.one2one

@@ -0,0 +1,122 @@
+/*---------------------------------------------------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.4                                   |
+|   \\  /    A nd           | Web:      http://www.openfoam.org               |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+
+
+FoamFile
+{
+    version         2.0;
+    format          ascii;
+
+    root            "";
+    case            "";
+    instance        "";
+    local           "";
+
+    class           dictionary;
+    object          couplingProperties;
+}
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+//===========================================================================//
+// sub-models & settings
+
+syncMode false;
+
+modelType "A";
+
+couplingInterval 100;
+
+voidFractionModel divided;
+
+locateModel engineSearchMany2Many;
+
+meshMotionModel noMeshMotion;
+
+regionModel allRegion;
+
+IOModel basicIO;
+
+probeModel off;
+
+dataExchangeModel twoWayOne2One;
+
+averagingModel dense;
+
+clockModel standardClock;
+
+smoothingModel off;
+
+forceModels
+(
+    gradPForce
+    viscForce
+    KochHillDrag
+);
+
+momCoupleModels
+(
+    implicitCouple
+);
+
+turbulenceModelType "turbulenceProperties";
+
+//===========================================================================//
+// sub-model properties
+
+dividedProps
+{
+    alphaMin 0.01;
+    scaleUpVol 1.0;
+}
+
+engineSearchMany2ManyProps
+{
+    engineProps
+    {
+        treeSearch true;
+    }
+}
+
+twoWayOne2OneProps
+{
+    liggghtsPath "../DEM/in.liggghts_run";
+    verbose true;
+}
+
+gradPForceProps
+{
+    pFieldName "p";
+    voidfractionFieldName "voidfraction";
+    velocityFieldName "U";
+    interpolation true;
+}
+
+viscForceProps
+{
+    velocityFieldName "U";
+    interpolation true;
+}
+
+KochHillDragProps
+{
+    verbose true;
+    velFieldName "U";
+    voidfractionFieldName "voidfraction";
+    interpolation true;
+    implForceDEM true;
+}
+
+implicitCoupleProps
+{
+    velFieldName "U";
+    granVelFieldName "Us";
+    voidfractionFieldName "voidfraction";
+}
+
+// ************************************************************************* //

tutorials/cfdemSolverPiso/ErgunTestMPI/DEM/in.liggghts_run.one2one

@@ -0,0 +1,67 @@
+# Pour granular particles into a cylinder, then induce flow
+log             ../DEM/log.liggghts
+thermo_log      ../DEM/post/thermo.txt
+
+atom_style      granular
+atom_modify     map array
+communicate     single vel yes
+
+boundary        m m m
+newton          off
+
+units           si
+processors      2 2 1
+
+# read the restart file
+read_restart    ../DEM/post/restart/liggghts.restart
+
+neighbor        0.0005 bin
+neigh_modify    delay 0
+
+# Material properties required for granular pair styles
+
+fix         m1 all property/global youngsModulus peratomtype 5.e6
+fix         m2 all property/global poissonsRatio peratomtype 0.45
+fix         m3 all property/global coefficientRestitution peratomtypepair 1 0.3
+fix         m4 all property/global coefficientFriction peratomtypepair 1 0.5
+
+# pair style
+pair_style  gran model hertz tangential history
+pair_coeff  * *
+
+# timestep, gravity
+timestep    0.00001
+fix         gravi all gravity 9.81 vector 0.0 0.0 -1.0
+
+# walls
+fix         zwalls1  all wall/gran model hertz tangential history primitive type 1 zplane 0.0
+fix         zwalls2  all wall/gran model hertz tangential history primitive type 1 zplane 0.0553
+fix         cylwalls all wall/gran model hertz tangential history primitive type 1 zcylinder 0.01385 0. 0.
+
+# change the particles density
+set         group all density 2000
+
+# cfd coupling
+fix         cfd all couple/cfd couple_every 100 one2one
+fix         cfd2 all couple/cfd/force/implicit
+#fix         cfd2 all couple/cfd/force/implicit/accumulated #CrankNicolson 0.5
+
+# apply nve integration to all particles that are inserted as single particles
+fix         integr all nve/sphere
+
+# center of mass
+compute     centerOfMass all com
+
+# compute total dragforce
+compute     dragtotal all reduce sum f_dragforce[1] f_dragforce[2] f_dragforce[3]
+
+# screen output
+compute         rke all erotate/sphere
+thermo_style    custom step atoms ke c_rke vol c_centerOfMass[3] c_dragtotal[1] c_dragtotal[2] c_dragtotal[3]
+thermo          10
+thermo_modify   lost ignore norm no
+compute_modify  thermo_temp dynamic yes
+
+dump            dmp all custom 5000 ../DEM/post/dump*.liggghts_run id type x y z vx vy vz fx fy fz f_dragforce[1] f_dragforce[2] f_dragforce[3] radius
+
+run             1