How to decompose Reynolds stress fields in a rotated axis -- CFD Online Discussion Forums

February 22, 2021, 12:38	How to decompose Reynolds stress fields in a rotated axis	#1
milad1990 New Member Join Date: May 2020 Posts: 12 Rep Power: 5	Hi every One! I have simulated flow around cylinder and I used (Ux+Uy) as the inlet boundary condition in a O-grid to study angle of attack. Now That I got the results, I found that the Uprime2Mean-xx and Uprime2Mean-yy are not symmetric around the cylinder. It seems that Openfoam is just doing the averaging in normal X-Y and if you use inlet velocity component (Ux+Uy) then the averaging will not be what you want. Do you know if its possible to rotate the axis and get the corrected result? or if I have to run the simulation again. Best

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