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Turbulent flow around a square cylinder

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Old   August 1, 2017, 07:44
Default Turbulent flow around a square cylinder
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Paul Zhang
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Hello,

I am running the square cylinder testing case using the mesh given in the built-in folder of SU2 and try to reproduce the solution of the square cylinder case in the AIAA paper "Stanford University Unstructured (SU2): Open-source Analysis and Design Technology for Turbulent Flows". In order to do that, the free-stream conditions are modified to be as following:

MACH_NUMBER= 0.2
FREESTREAM_TEMPERATURE= 273.15

However, I got a St number value quite different from the one given in the paper.

St=fL/U=0.083839346
where f = 1/T
T = 120 * 0.0015 = 0.18
U = 66.2643
L = 1

Quite confused. Any help is appreciated.

Thanks,
Paul

Attached are the figures where I found that a period has 120 time steps.
Attached Images
File Type: png Period1.png (40.7 KB, 22 views)
File Type: png Period.png (27.8 KB, 20 views)
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Old   August 11, 2017, 10:07
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Francisco Palacios
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Hi,
My recommendation is to take a look at this paper:

https://arc.aiaa.org/doi/abs/10.2514/6.2014-2404

were you can maybe find some extra information. Another thing that you can do is to compare your results with the figure 7 in the article that you cite in case something has changed in the latest releases of SU2.

Best,
Francisco
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Old   August 14, 2017, 00:55
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Paul Zhang
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Quote:
Originally Posted by fpalacios View Post
Hi,
My recommendation is to take a look at this paper:

https://arc.aiaa.org/doi/abs/10.2514/6.2014-2404

were you can maybe find some extra information. Another thing that you can do is to compare your results with the figure 7 in the article that you cite in case something has changed in the latest releases of SU2.

Best,
Francisco
Dear Prof. Palacios,

Your reply is just in time. I realized that the SU2 code has been updated which yields a better solution.

Thank you so much for your guidance.

Best,
Paul
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