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Computing Reynolds Stresses For Cylindrical Co-ordinates

- October 9, 2024 at 12:53 pm
  
  SR786
  Subscriber
  
  Hi,
  I am modelling hydrodynamics in a stirred tank vessel using the Reynolds Stress Model. I notice that the Reynolds Stresses are given for the cartesian co-ordinate system (x, y, z) i.e., UU, VV, WW, UV, VW, UW. Is there any way to obtain the Reynolds Stresses for the cylindrical co-ordinate system (r, t, z), i.e., Vr*Vr, Vt*Vt, Vz*Vz, Vr*Vt, Vt*Vz, Vr*Vz>
- October 9, 2024 at 1:48 pm
  
  Essence
  Ansys Employee
  
  Hello,
  Since Fluent directly solves for Reynolds stresses in cartesian coordinates, the results will be in cartesian itself (as of now). You need to use UDF or Custom Field Functions to convert the results from cartesian to cylindrical.

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