transition modeling in compressible regime

fluidmechanics · April 19, 2018, 16:01

Dear All;

Hi. I have two questions using SU2 version 6.
1- Can SU2 B-C transition model predict transition in compressible flow? Any solved problem? As in SU2 tutorial transition folder, all of the three available cfg files (flat plate, E387) are incompressible. I have tried to perform over these grids in compressible regime, but no transition occurs at the same Re which predicted transition well in incompressible flow.

2- Rigid motion of grid seems not to work in incompressible regime. Any idea to investigate transition at Re=400k over a moving body which needs rigid motion?

Thanks in advance.

whizkid · April 23, 2018, 08:05

Hello,

You can use B-C transition model for compressible flow. You may check this paper http://journals.sagepub.com/doi/10.1...54406217743537

AlbertoPi · April 23, 2018, 10:47

Grid motion doesn't appear on incompressible solver code.
I tried the B-C model with compresible flow and it works. Maybe your laminar regions is too small.

April 19, 2018, 16:01	transition modeling in compressible regime	#1
fluidmechanics Member mike Join Date: Jun 2011 Posts: 42 Rep Power: 16	Dear All; Hi. I have two questions using SU2 version 6. 1- Can SU2 B-C transition model predict transition in compressible flow? Any solved problem? As in SU2 tutorial transition folder, all of the three available cfg files (flat plate, E387) are incompressible. I have tried to perform over these grids in compressible regime, but no transition occurs at the same Re which predicted transition well in incompressible flow. 2- Rigid motion of grid seems not to work in incompressible regime. Any idea to investigate transition at Re=400k over a moving body which needs rigid motion? Thanks in advance.

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April 23, 2018, 08:05		#2
whizkid Member C Join Date: Apr 2013 Posts: 37 Rep Power: 14	Hello, You can use B-C transition model for compressible flow. You may check this paper http://journals.sagepub.com/doi/10.1...54406217743537

April 23, 2018, 10:47		#3
AlbertoPi New Member Alberto Pizarro Join Date: Feb 2016 Posts: 18 Rep Power: 11	Grid motion doesn't appear on incompressible solver code. I tried the B-C model with compresible flow and it works. Maybe your laminar regions is too small.