Boundary Conditions on patch region

- April 25, 2023 at 7:26 am
  
  Peter Felbinger
  Subscriber
  
  Hello all,
  i am currently trying to simulate fluid in a small cavity. My fluid (water) is inserted via a patch region in the cavity. The rest of the volume in the cavity is air. Then a VOF is done.
  I am now interested in inserting a boundary condition on the water surface, e.g. for heat radiation.
  The surface of the patch region is not under the boundary tap and now i am interested if it is possible to insert a boundary for this surface.
  I am looking forward to your replies!
- April 25, 2023 at 3:35 pm
  
  Rob
  Ansys Employee
  
  There isn't a surface for boundary conditions as such. The solver will pass heat from one phase to the other, but radiation etc will just see the phase fraction & material property. UDFs might give you what you want, but you'll need to find the cell(s) with the interface.

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