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Old   November 24, 2006, 08:11
Default overflow problem
  #1
bruno
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i'm having problems with overflow in solver cfx!

my simulation is transient and i set many times the boundary conditions and initial conditions to try to get goos results.

my turbulence model is LES and my simulation is an atmospheric dispersion aroun a bulding.

who knows about problems like this in transient simulations?

is this problem with bad mesh, or the conditions???

thanks a lot

bruno

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Old   November 24, 2006, 11:23
Default Re: overflow problem
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Johnny
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Yes, your problem is probably a bad mesh and/or an inadequate timestep. There's no way to know for sure with the information you provided.
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Old   November 26, 2006, 17:28
Default Re: overflow problem
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Glenn Horrocks
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Hi,

Doing a LES simulation when you have not got the basics under control is a bad idea. I recommend you switch to a RANS turbulence model (SST or k-epsilon).

Glenn Horrocks
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