Assign Pressure and mass flow rate at inlet in Fluent

- May 9, 2018 at 9:33 am
  
  bolbol
  Subscriber
  
  Hi,
  
  I was trying to assign the pressure and the mass flow rate at inlet for my case in Fluent, but after some research, I've found that u can't do that because it's mathematically over specifying.
  
  But someone suggest that i can use UDF to override this part, can this method work? and where exactly i just use it, in mass flow rate condition or in pressure-inlet condition?
- May 13, 2018 at 8:51 pm
  
  Raef.Kobeissi
  Subscriber
  
  Hi,
  
  You can't do both unfortunately as it is mathematically obsolete. Your inlet boundary condition has to include one of 2 options and only 1:
  
  -Inlet Pressure
  
  or
  
  -Velocity or mass Flow
  
  At the outlet, on the other hand, you can specify an outlet pressure.
  
  Regards