Separation Visualisation
 

I'm simulating the flow over a low-drag vehicle (airfoil-shaped) and i'm trying to find separation points. The turbulence model used is SST. I'm using wall shear-stress plots to visualise possible separation. However, when a value of 0.004 is found, does this indicate separation or not?

Can you guys recommend a treshold value for wall shear-stress that accurately predicts separation?

Thanks in advance!

Can somebody help me?

This is a very interesting question. The person who can answer this question would be an absolute genius