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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Non-Intersected faces found for matching interface periodic-walls › Reply To: Non-Intersected faces found for matching interface periodic-walls

November 19, 2024 at 10:25 pm
zoelle.wong
Subscriber

Follow up question- I wasn't sure if it was better to make a new discussion post; but I am more than happy to do so. 

I'm specifying an internal boundary condition inside my domain. My method is to partition the domain such that a cylinder exists inside the volumetric domain. Consequently, I have 2 sets of interfaces: one for the cylinder and one for the domain outside the cylinder. Within the cylinder, I specify an user-defined-scalar such that my user source value in [W] meets a specific value. I check this value by going to Flux report >> Total heat transfer rate >> select boundaries_in_cylinder_region.

  • Since the output is in [W], can I assume that the user specified value from the flux report is solely for the quarter cylinder? In other words, is this value independent of periodicocity? 
  • When comparing the fully revolved case with the periodic BC case, the temperature flow fields look different. I checked my boundary conditions and I'm confident I specificed the periodic BCs correctly. I'm struggling with identifying what is causing the difference in temperature profiles. Do you think this is an outcome of symmetry?

In this plot: The periodic BC has a UDS energy input of 124 kW and the fully revolved case has a UDS energy input of 2 MW. I did compare the plots with the same UDS values, however the flow fields still take on this shape. 

Thank you again so much