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August 13, 2007, 04:28
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viscosity limited
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Guest
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Hi i face whit 2meessages"turbulent viscosity limited to .." and reveres floe at ...on out flow" during solving a turbulant problem. i modeled 2 channel that cross eachother. i increase pressure under relaxation factor to 0.5 but i have convergnce problem whit qauntinuty equation. please help me. Whit king regards Rick
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August 13, 2007, 05:40
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Re: viscosity limited
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Guest
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There are 3 reasons for this message: first the mesh quality is poor(skewness etc), second improper use of turbulent boundary conditions and the third one is the poor initial values for turbulent quantities, check for these things.
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August 15, 2007, 05:14
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Re: viscosity limited
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Guest
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Dear Farhan my grid dosnt havy any problem . and what do you meam about use of turbulent boundary conditions? tankx alot Rick
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August 16, 2007, 00:37
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Re: viscosity limited
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It is turbulent intensity and length scale at the inlet boundary
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August 22, 2007, 06:23
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Re: viscosity limited
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yes, I think you have got the answer from Andrew
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