overflow problem
 

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

Re: overflow problem
 

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.

Re: overflow problem
 

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