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Physics coupling between Turbulent Flow and acoustic calculation modules
Posted 2024/07/25 20:18 JST Acoustics & Vibrations, Computational Fluid Dynamics (CFD), Studies & Solvers Version 6.1 1 Reply
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I am currently working on a 2D-axisymmetric model on an aeroacoustics problem. I have done linearized potential flow study by the “Linearized Potential Flow” physics to acquire all the cut-on modes for different flow velocities. And I plan to follow-up with a calculation of the background mean flow by using the “Turbulent Flow, k-omega” physics. For the Multiphysics coupling, I found that only acoustics modules I can link are either Linearized Euler (L.E.E.) or Linearized Navier-Stokes (L.N.S.). Is possible that I can link the non-potential flow calculation (RANS) to a linearized potential flow solution through the Multiphysics option? If not, can I feed a modal type source to LEE solution as the source input in linearized potential flow calculation?
Thanks.
Hello Chin Chiu Chan
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Hi Chin Chiu Chan
Only a compressible potential flow can be used as input to the linearized potential flow equations. The results will become unphysical if you use another type of flow.
This is also stated in the documentation, for example, if you use the dynamic help and click on the Linearized Potential Flow Model node.
Best regards Mads