Generating turbulence using les inflow

[Muhsin]

Hi all,

I'm testing the les inflow method in a pipe before implementing it to a more complicated geometry. For your information, I also will be using recirculation method at the inlet part, after few time steps.
I've tested for all three types of white noise, batten method and SEM. However, I couldn't get any turbulence generated for all of them from the beginning.

Some really basic question, I just wondering for the advanced method in the calculation of the Reynolds stresses and the dissipation rate, I have to do parallel calculation if I would like to do run it in parallel?

I've tested without the advanced method for all three methods but still not triggering any turbulence. Is there any particular parameter or approach that I need to make sure of on this method? Hope anyone who experienced on this can help me, particularly on SEM.

[Yvan Fournier]

Hello,

I'm not sure about the turbulence entry conditions. All should work, but this may also depend on your mesh quality, refinement, and turbulence model. With no more details, I can't guess.

All methods should work whether you are running in parallel or not.

Regards,

Yvan