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September 1, 2011, 08:04 |
ERROR vof model !!!
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#1 |
Member
Tobino
Join Date: Jan 2011
Location: Osaka,Japan
Posts: 33
Rep Power: 15 |
Hi, has anybody meet the same this error.
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September 1, 2011, 11:28 |
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#2 |
Senior Member
Vieri Abolaffio
Join Date: Jul 2010
Location: Always on the move.
Posts: 308
Rep Power: 16 |
which one are you referring to? there are more than one.
turbulence viscosity ratio limited to... refers to turbulent quantities. possibly your initial condition are quite far from the solution so a limiting is in place to prevent the simulation to diverge. the backflow means that the fluid is coming into the domain from the outlet, instead of going out. I'd say pressure-related or mesh problems it is hard to be more specific without knowing the problem and how the simulation has been set up. |
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September 1, 2011, 12:57 |
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#3 |
New Member
Harpreet
Join Date: May 2011
Posts: 21
Rep Power: 14 |
i am also facing similar conditions, but the flow profile is coming almost ok, with some overshooting in the velocity.
does it also means some problem in B.C.'s or mesh |
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September 1, 2011, 19:34 |
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#4 |
Member
Tobino
Join Date: Jan 2011
Location: Osaka,Japan
Posts: 33
Rep Power: 15 |
Thanking for rely,
My model is a hull with vof model, 2 phase air and water. I set BC following: 1. Define model: 3D, steady, vof, k-epsillon standard wall funtion 2. Phase: primary phase - air , secondary-phase water 3.Operating condition: operating pressure 101325, gravity z = -9.81 4. Boundary condition: air-inlet with velocity inlet, water-inlet with velocity inlet. air-outlet with pressure outlet gauge pressure 0. water outlet with pressure outlet gauge pressure 0. 5.Solution control: PISO, Body force weighted. 6. Solution initialization: compute from all-zones, reference frame absolute. init. 7. Solve initialize, patch: phase water, value 1, zones to patch fluid, registers to patch hexahedron-r0, patch. |
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September 2, 2011, 11:02 |
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#5 | |
Senior Member
Vieri Abolaffio
Join Date: Jul 2010
Location: Always on the move.
Posts: 308
Rep Power: 16 |
Quote:
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