A strange problem in supersonic NS simulation

zylanboluo · December 11, 2014, 04:23

Hello,everyone!
Recently, I have a strange problem in supersonic NS simulation with SU2. It is a 2Ma 2D wedge. Turbulence model is SA. I set farfield, NS_wall, outlet boundary condition. The pressure contour of result shows strange at the two junctions place --farfield and NS_wall, outlet and NS_wall.
Below is my grid and SU2 configuration file, contour of the result.
Appreciate any reply!

hsz411 · December 26, 2014, 06:00

Quote:

Originally Posted by zylanboluo

Hello,everyone!
Recently, I have a strange problem in supersonic NS simulation with SU2. It is a 2Ma 2D wedge. Turbulence model is SA. I set farfield, NS_wall, outlet boundary condition. The pressure contour of result shows strange at the two junctions place --farfield and NS_wall, outlet and NS_wall.
Below is my grid and SU2 configuration file, contour of the result.
Appreciate any reply!

I have the same problem, if you have solved this problem , can you tell me ? thank you .

fchan · December 29, 2014, 13:02

It looks like you are simulating a bump instead of a wedge; you might want to recheck your boundary conditions...

zylanboluo · December 29, 2014, 20:29

The boundary condition is set as: the lower boundary--wall; the upper and left boundary--farfield; the right boundary--outlet.

fchan · December 30, 2014, 09:44

Quote:

Originally Posted by zylanboluo

The boundary condition is set as: the lower boundary--wall; the upper and left boundary--farfield; the right boundary--outlet.

Exactly... shouldn't you use a symmetry/slipwall if you want to simulate a wedge instead of a bump (there's a difference between the two).

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December 29, 2014, 13:02		#3
fchan New Member Frederik Join Date: Apr 2010 Posts: 18 Rep Power: 16	It looks like you are simulating a bump instead of a wedge; you might want to recheck your boundary conditions...

December 29, 2014, 20:29		#4
zylanboluo New Member Ying Zhuying Join Date: Nov 2014 Posts: 8 Rep Power: 11	The boundary condition is set as: the lower boundary--wall; the upper and left boundary--farfield; the right boundary--outlet.