InterFOAM - propeller in tank with free water surface

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 June 28, 2021, 07:26 InterFOAM - propeller in tank with free water surface #1 New Member   Martin Vrabel Join Date: Apr 2017 Posts: 1 Rep Power: 0 Hello people, I simulate of fluids pumping in tank without inlet and outlet. There is propeller under free water surface and this pump pressures the liquid back into the tank. I used interFOAM solver and OF v2006, but there is starting error. Unreasonable low Co number and timeStep continuity. Could anyone help me ? Thanks Modi Code: ```Reading g Reading hRef Calculating field g.h No MRF models present No finite volume options present GAMG: Solving for pcorr, Initial residual = 0.971578, Final residual = 0.0859482, No Iterations 6 time step continuity errors : sum local = 8.63452e-24, global = -5.25643e-26, cumulative = -5.25643e-26 Constructing face velocity Uf Courant Number mean: 2.89417e-21 max: 2.56147e-16 Starting time loop Courant Number mean: 2.89417e-21 max: 2.56147e-16 Interface Courant Number mean: 0 max: 0 deltaT = 0.000120192 Time = 0.0001201923077 PIMPLE: iteration 1 AMI: Creating addressing and weights between 180370 source faces and 180370 target faces AMI: Patch source sum(weights) min:0.240742 max:2.26122 average:1.00064 AMI: Patch target sum(weights) min:0 max:2.73399 average:1.0006 GAMG: Solving for pcorr, Initial residual = 1, Final residual = 0.0768889, No Iterations 7 time step continuity errors : sum local = 1.38515e-06, global = 1.26298e-08, cumulative = 1.26298e-08 MULES: Solving for alpha.water Phase-1 volume fraction = 0.921918 Min(alpha.water) = -4.8035e-23 Max(alpha.water) = 1.03014 MULES: Solving for alpha.water Phase-1 volume fraction = 0.921918 Min(alpha.water) = -9.69172e-23 Max(alpha.water) = 1.05006 [10] #0 Foam::error::printStack(Foam::Ostream&) at ??:? [10] #1 Foam::sigFpe::sigHandler(int) at ??:? [10] #2 ?[11] #0 Foam::error::printStack(Foam::Ostream&) in /lib/x86_64-linux-gnu/libpthread.so.0 [10] #3 ? at ??:? [11] #1 Foam::sigFpe::sigHandler(int) at tensorField.C:? [10] #4 void Foam::inv(Foam::GeometricField, Foam::fvPatchField, Foam::volMesh>&, Foam::GeometricField, Foam::fvPatchField, Foam::volMesh> const&) at ??:? [11] #2 ? in ~/OpenFOAM/OpenFOAM-v2006/platforms/linux64GccDPInt32Opt/bin/interFoam [10] #5 Foam::tmp, Foam::fvPatchField, Foam::volMesh> > Foam::inv(Foam::tmp, Foam::fvPatchField, Foam::volMesh> > const&) in /lib/x86_64-linux-gnu/libpthread.so.0 [11] #3 ? in ~/OpenFOAM/OpenFOAM-v2006/platforms/linux64GccDPInt32Opt/bin/interFoam [10] #6 Foam::tmp, double>::type, Foam::fvPatchField, Foam::volMesh> > Foam::fvc::reconstruct(Foam::GeometricField const&) in ~/OpenFOAM/OpenFOAM-v2006/platforms/linux64GccDPInt32Opt/bin/interFoam```

 Tags free water surface, interfoam, propeller