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General Mechanical

General Mechanical

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  3. Harmonic Acoustics – Problems while setting Thermo-Viscous BLI Boundary

Harmonic Acoustics – Problems while setting Thermo-Viscous BLI Boundary

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    • January 29, 2024 at 6:03 pm
      André Henrique
      Subscriber

      I just can't set Thermo-Viscous BLI Boundary for the surfaces I want.
      The model is as follows, a tube filled with air and a structure inside. I want to place a Thermo-Viscos BLI Boundary condition on the surfaces where the solid interacts with the fluid.

    • January 30, 2024 at 9:18 am
      Erik Kostson
      Ansys Employee

       

       

      Hi

       

      It can not be applied on a fluid solid interface (FSI), so on  a face where the structure interacts with the acoustic region.

      The BLI goes only on outer faces of acoustic regions (not in contact with any structural bodies) – see as an example here: 41.5. Boundary Conditions and Loading (ansys.com) –

       

       

      See here if you can not open the above link:

      /forum/forums/topic/how-to-access-the-ansys-online-help/

       

      All the best

      Erik

       

       

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