Reattachment length in a backward facing step problem

saisanthoshm88 · April 3, 2012, 07:17

I’m simulating a 2D backward facing step problem in CFX.

Could someone please suggest me a way to calculate the reattachment length for this problem in CFD Post.

ghorrocks · April 4, 2012, 07:41

There should be zillions of benchmark simulations and experiments on this flow. Go to your library and do a search for them - or these days you might be able to find it with google.

abhayIITM · January 12, 2015, 08:21

Find out the Wall shear stress at the plane where the flow is reattaching. The reattachment lenght is that location where the shear stress is changing its sign from -ve to +ve.

April 3, 2012, 07:17	Reattachment length in a backward facing step problem	#1
saisanthoshm88 Senior Member --------- Join Date: Oct 2010 Posts: 303 Rep Power: 17	I’m simulating a 2D backward facing step problem in CFX. Could someone please suggest me a way to calculate the reattachment length for this problem in CFD Post. __________________ Best regards, Santhosh.

January 12, 2015, 08:21	Finding the reattachment length	#3
abhayIITM New Member AB Join Date: Jun 2014 Posts: 2 Rep Power: 0	Find out the Wall shear stress at the plane where the flow is reattaching. The reattachment lenght is that location where the shear stress is changing its sign from -ve to +ve.

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April 4, 2012, 07:41		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	There should be zillions of benchmark simulations and experiments on this flow. Go to your library and do a search for them - or these days you might be able to find it with google.