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February 20, 2013, 07:18 |
Divergence problem
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#1 |
Member
Smaras
Join Date: Sep 2012
Location: Germany
Posts: 78
Rep Power: 13 |
"Already posted this yesterday but no response that's why"
Hello, I am getting this problem with the 3D VOF (air jet impinging over water). The simulation is good till 1.4e-2s but after that it gives the following error. The time step size i am using is 1e-6 with 40 time steps. The setting are as follows: 1. Double with SST 2. Surface tension 0.073 n/m 3. inlet velocity 96.672 m/s 4. PISO Scheme with VF(Mod HRIC) Momentum (2nd ord) 5. URF Pressure 0.3 Density 0.5 Body Forces 1 VF 0.5 In 2D for the same thing, i had mass loss problem but i was able to find the solution with the help of few people here. Would be thankful for your kind reply. Regards, Smaras ===>>>>turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 240257 cells # Divergence detected in AMG solver: x-momentum -> Increasing relaxation sweeps! Divergence detected in AMG solver: x-momentum Divergence detected in AMG solver: y-momentum Divergence detected in AMG solver: z-momentum Divergence detected in AMG solver: vof-1 Divergence detected in AMG solver: x-momentum Divergence detected in AMG solver: y-momentum Divergence detected in AMG solver: z-momentum Divergence detected in AMG solver: vof-1 Divergence detected in AMG solver: x-momentum Divergence detected in AMG solver: y-momentum Divergence detected in AMG solver: z-momentum Divergence detected in AMG solver: vof-1 Divergence detected in AMG solver: x-momentum Divergence detected in AMG solver: y-momentum Divergence detected in AMG solver: z-momentum Divergence detected in AMG solver: vof-1 Divergence detected in AMG solver: x-momentum Divergence detected in AMG solver: y-momentum Divergence detected in AMG solver: z-momentum Divergence detected in AMG solver: vof-1 Divergence detected in AMG solver: x-momentum Divergence detected in AMG solver: y-momentum Divergence detected in AMG solver: z-momentum Divergence detected in AMG solver: vof-1 turbulent viscosity limited to viscosity ratio of 1.000000e+05 in 251038 cells Primitive Error at Node 0: floating point exception Primitive Error at Node 1: floating point exception Primitive Error at Node 2: floating point exception Primitive Error at Node 3: floating point exception Primitive Error at Node 4: floating point exception Primitive Error at Node 5: floating point exception<<<<==== |
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vof model |
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