UPWIND-BIASED and Low Re K-Epsilon Model

Valdemir G. Ferreira

Hi Dear Friends,

In recent days, I have been simulated a Jet on flat surface by usind Low Re K-Epsilon model of Yang-Shih. The convective terms in the Reynolds equations were trated by SMART tecnique, and that the K-Epsilon model I used to first order UPWIND. I have noted that the calculations are strongly dominated by numerical difusion. Also, I used y+>>1.1 (perhaps 300). My question is:

Is the poor spatial resolution the problem?

Thanks. Valdemir.