Problem in reverse flow
 

Hi,

I used K-e RNG turbulence model with scalable wall function for simulating an axial turbine. Flow is formed in this case rapidly. but when I use K-e Relizable turbulence model with non-equilibrium wall function, there is reverse flow. Why?

Y+ is equal to 15 and Re=2.4* 10^5. Also, height of first cell is equal to 0.000129

Thanks.

Best.

Aja