Wavy boundary with momentum on only part of the inlet

- October 9, 2018 at 9:53 pm
  
  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
- October 10, 2018 at 8:41 am
  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.
- October 10, 2018 at 8:35 pm
  
  soloviev
  Subscriber
  
  I think this will solve my problem. Thank you for your help.
  
  Alex

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