Ansys Innovation Space

FREE STUDENT SOFTWARE

nanofluid is flowing inside the tube shown in fig below & air is flowing over fins through enclosure

- October 18, 2021 at 5:47 am
  
  sadhurajesh
  Subscriber
- October 18, 2021 at 2:41 pm
  
  Rob
  Forum Moderator
  
  I assume the two flow domains aren't supposed to be connected? Ie the nanofluid isn't mixing with the air?
- October 25, 2021 at 8:49 am
  
  sadhurajesh
  Subscriber
  
  I don't know both fluids are mixing or not. But while I am trying for convergence using fluent solver, I am getting floating-point exception and continuity diverging
- October 25, 2021 at 9:46 am
  
  Rob
  Forum Moderator
  
  You need to decide if the fluids should or shouldn't mix. That determines whether you need to include multi phase models. What is the mesh quality?
- October 25, 2021 at 10:02 am
  
  sadhurajesh
  Subscriber
  
  fluids should not mix. these are mesh qualities below
- October 25, 2021 at 11:09 am
  
  Rob
  Forum Moderator
  
  OK, so you need to rethink the geometry so that the two streams can't mix. You also need to find where the highly skewed cells are and sort those out: 0.99999 skew is essentially flat, and will cause the solver to fail.
- October 25, 2021 at 12:14 pm
  
  sadhurajesh
  Subscriber
  
  how to sort out highly skewed cells
- October 25, 2021 at 1:11 pm
  
  Rob
  Forum Moderator
  
  It depends on what's causing them. It could be changes to geometry or cell sizing.

Viewing 7 reply threads

The topic ‘nanofluid is flowing inside the tube shown in fig below & air is flowing over fins through enclosure’ is closed to new replies.