How can i measure circulation strength in fluent?

- March 9, 2019 at 11:31 am
  
  sunil
  Subscriber
  
  How can i measure circulation strength for the simulations which i have done using Euler calculations in fluent?
- March 11, 2019 at 11:19 am
  
  Rob
  Forum Moderator
  
  Can you explain what you mean by circulation strength? We can plot velocity vectors & contours and report forces but I've not come across "circulation strength" before.
- March 11, 2019 at 11:44 am
  
  sunil
  Subscriber
  
  It is a line integral of tangential velocity over the computational domain.
- March 11, 2019 at 4:37 pm
  
  Rob
  Forum Moderator
  
  You can get tangential velocity if you define the fluid zone centre of rotation (typically used in cyclones etc), you then need to create a line & use the surface integrals or a custom field function.
  
  If it's a shed vortex then you need to ID the centre: then use a custom function, vorticity magnitude or (I think) there's a feature in CFD Post.