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Noise propagation in a control valve situation

    • keny0910

      Hi everyone

      I would like to know how the sound propagating through a control valve. For example, like this video show:


      The fluid passed through a smaller hole and induced an aerodynamic noise. I wondered how to simulate this project. I turned on the acoustic  model in Fluent with broadband option, but i can only know the SPL and Surface SPL of the pipe. How to know the SPL if the sound pass the pipe wall and go into the air?

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