[sabuj]

Dear all,

I am trying to simulate VAWT with pimpleDyMFoam on fe32 with k-epsilon turbulence model. But k is not being convected and keeps trailing the airfoils instead (image attached). Has anyone faced this problem before? Please help

Thanks,
LR

[kanuk]

I have had the same problem before and did not have any luck in solving it unfortunately...

For what it's worth, I did notice that, for some reason, the Spalart-Allmaras turbulence model for fe32 does convect turbulent eddy viscosity downstream properly. Various other two-equations models (including k-w-SST) did not work for me though. Hopefully you can find your answers here!

[louisgag]

Hi,
I had the same issue and I solved it by using

minIter    1;

on my turbulence residuals (k and omega in my case) in fvSolution.
The reason being that the initial residuals on the turbulence equations was already lower than my tolerance and the solver would consequently not solve it!


I got my solution from this post: Problem with SST-Model - strange behaviour