How to solve fluid flow in tube inside a tube

- December 1, 2019 at 11:52 pm
  
  Chaitanyaakk
  Subscriber
  
  how do I solve for a tube inside a tube in fluent, where the bigger tube is 12.5 mm diameter and the smaller tube is 3mm diameter.
  
  The length of the tubes is 600mm. the smaller tube has holes on its periphery of 1mm diameter.
  
  the outer tube has water flowing through it and the smaller tube has air flowing through it.
  
  GOAL: the air from the smaller tube must go and mix with the water in the outer tube creating turbulence.
- December 2, 2019 at 5:54 am
  
  DrAmine
  Ansys Employee
  
  First of all you need to create a numerical grid.

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