How to add turbulence purtubation in the middle of the computational domain?

ivanbuz · August 24, 2009, 15:35

Hi, I am doing simulation of turbulence flow around an airfoil using LES in Fluent. the Reynolds number is 6e4 and there should be separation at the upper surface of the airfoil. But in my simulation I don't see any separation, and someone suggested that maybe I should add some pertubation near the leading edge of the airfoil to trigger the separation. I know how to add pertubation at the boundary, but I don't know how to do it near the leading edge (inside of the computational domain).

any suggestion is appreciated. Thanks in advance!

ivanbuz · August 27, 2009, 01:14

come on, can anybody help me out?

August 24, 2009, 15:35	How to add turbulence purtubation in the middle of the computational domain?	#1
ivanbuz Member Ivan Join Date: May 2009 Posts: 85 Rep Power: 16	Hi, I am doing simulation of turbulence flow around an airfoil using LES in Fluent. the Reynolds number is 6e4 and there should be separation at the upper surface of the airfoil. But in my simulation I don't see any separation, and someone suggested that maybe I should add some pertubation near the leading edge of the airfoil to trigger the separation. I know how to add pertubation at the boundary, but I don't know how to do it near the leading edge (inside of the computational domain). any suggestion is appreciated. Thanks in advance! Last edited by ivanbuz; August 24, 2009 at 18:38.

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August 27, 2009, 01:14		#2
ivanbuz Member Ivan Join Date: May 2009 Posts: 85 Rep Power: 16	come on, can anybody help me out?