Fluids

Fluids

Wavy boundary with momentum on only part of the inlet

    • soloviev
      Subscriber

      Hello,


      I am simulating the spray generation produced by hurricanes at the air-sea interface on a wavy sea surface. I know it is possible to create a water layer with a wavy surface representative of ocean waves by using the Open-Channel Wavy Boundary Condition with an inlet and an outlet. If I set up the Wave BC in this fashion, is there any way to then set the velocity magnitude of the air (wind) at the top of the domain to have some constant value (e.g., 50 m/s), while the velocity would be zero in the water portion of the domain?


      Thank you,


      Alex


       

    • Rob
      Ansys Employee

      If you set two surfaces on the inlet plane:



      • lower one high enough to include the waves, set using open channel

      • upper one set with an air velocity


      You may see some odd effects near the inlet as the wave trough and air inlet don't quite tie up but the remainder should work, and it should sort itself out fairly quickly. Try it in 2d as it should work/fail fairly rapidly.

    • soloviev
      Subscriber

      I think this will solve my problem. Thank you for your help.


      Alex

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