Reynolds stress calculation in Starccmplus
Hey guys, can anyone help how to get reynolds shear stress in starccmplus from kepsilon or v2f model. Will really appreciate.
Jahed 
The components of the Reynolds stress tensor are not available with a kepsilon model.
The turbulent kinetic energy k only represents the values on the diagonal of the reynolds stress tensor > k=1/2*(uu+vv+ww) The individual components are only accessible with a Reynoldsstress turbulence model, a LES or a DNS. 
Can we find them through velocity gradients and eddy viscosity?

Unfortunately, we can't.
That is one of the disadvantages of twoequation turbulence models. We only have two equations for turbulence quantities. The Reynolds stress tensor contains 6 independent variables. Unless we use a turbulence model with 6 additional equations (like a reynolds stress model) or we obtain the reynolds stresses explicitly wit a LES or DNS, we don't have enough information about the flow to give an estimate for the individual components of the Reynolds stresses. 
All times are GMT 4. The time now is 23:18. 