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Mean age of air (MAA) with 2 inlets

- February 18, 2022 at 10:19 am
  
  isaps1860
  Subscriber
  
  I have a room with an inlet for fresh air and additional a person in the room who is breathing. Now if I compile and load the Age of air UDF with DEFINE_DIFFUSITY and DEFINE_SOURCE the code is working but the code runs for both inlets. The fresh air inlet which I want the code running and the breath Inlet of the person in which I don´t want the Age of air in it. Is it possible to give one inlet the UDF scalar and an other Inlet not?
  Best regards
- February 18, 2022 at 11:38 am
  
  Rob
  Forum Moderator
  
  You'd typically run the MAA UDF on a frozen flow field after running the model. So in that case change the mouth to a wall and then run MAA. The flow field is unchanged but the scalar won't see the second inlet.
- February 18, 2022 at 11:49 am
  
  isaps1860
  Subscriber
  
  Thank you very mich

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