[Nek5000-users] Two dimensional LES in case Turbchannel

[nek5000-users at lists.mcs.anl.gov]

Hi all,

I have already tried the case turbChannel for three-dimensional LES. And I want to try Two-dimensional LES. I modifed the subroutine functions such as: eddy_visc, comp_lij, comp_mij. And I comment out the warning "ERROR in tens3d1. Increase lw." in subroutine tens3d1 in postprof.f.

But still have some problems! After 8 time steps, the L1/L2 DIV(V) is too large (about 1.48e6), and finally lead to a very large CFL number(1.8e6).Details can be seen in attachment.

I don't know why this happened! How can I finish this 2d-LES case in turbchannel?

Best regards!

Hu
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