Separation Visualisation

Mixownt · July 12, 2016, 09:44

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!

Mixownt · July 20, 2016, 11:29

Can somebody help me?

NielsHaw · July 20, 2016, 11:31

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

July 12, 2016, 09:44	Separation Visualisation	#1
Mixownt New Member Join Date: Nov 2015 Posts: 2 Rep Power: 0	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! NielsHaw likes this.

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July 20, 2016, 11:29		#2
Mixownt New Member Join Date: Nov 2015 Posts: 2 Rep Power: 0	Can somebody help me?

July 20, 2016, 11:31		#3
NielsHaw New Member Niels Hawinkel Join Date: Mar 2016 Posts: 6 Rep Power: 10	This is a very interesting question. The person who can answer this question would be an absolute genius