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Old   October 5, 2005, 10:02
Default Turbulence modelling error
  #1
Derick
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Hey guys,

I am a newbie and I was trying to do a turbulence modelling. The flow is inside a large duct and the velocity is very high. I was modeling the 2d case and prepared a udf for inlet velocity, dissipation rate and turbulent kinetic energy as explained in the user guide. As i started the iteration, even before it goes through the first iteration, it gives me this error:

turbulent viscosity limited to viscosity ratio of 1.000000e+005 in 341000 cells

I tried to change the limit of viscosity ratio to a higher value, but still it gives me a similar error.

Any thoughts?

Thanks in advance,

Derick
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Old   October 5, 2005, 10:21
Default Re: Turbulence modelling error
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RoM
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Common question, just scroll one page down to find this thread

http://www.cfd-online.com/Forum/fluent.cgi?read=31826

And a little forum search will get you alot of good answers like this one from zxaar

http://www.cfd-online.com/Forum/flue...cgi?read=28356

RoM
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Old   October 5, 2005, 10:48
Default Re: Turbulence modelling error
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Derick
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Thanks RoM...that helped me and I got it to work

Derick
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