non-dimensional values(-uv/u0^2...
 

Hi everybody, I have solved channel flow using k-eps wall function.I am to print non-dimensional values.particulary i wonder how i should calculate total stress and turbulent shear stress.that is -uv/umax**2 to/umax**2 actully i have calculated them but it seems there are not correct i wonder if i calculated them correctly. my code is collocated and viscosity and other values are in same node. would you tell me how i should interpolate and calculate them assuming that i have all vales in each node take care