What is the reference pressure when Hybrid initiation is chosen

- November 25, 2019 at 8:03 am
  
  MemoriseXuxu
  Subscriber
  
  Hello everyone,
  
  Before calculating, there are two ways of initiating, such as standard and Hybrid initiation.When we choose the standard way, it require us to input the reference pressure. However, it doesn't show up in Hybrid initiation. As a result, what the reference pressure is if I choose the hybrid initiation?
  
  BTW, what's the meaning of operation pressure? What's the difference between operation pressure and reference pressure? When the reference pressure is 0, the gage pressure is the absolute pressure.
  
  Best regards,
  
  Memorise
- November 25, 2019 at 2:09 pm
  
  Rob
  Ansys Employee
  
  Reference pressure is used for coefficients eg pressure coefficient. This value has no effect on the solver numerics, only some post processing.
  
  Operating pressure is used to set "zero" gauge pressure.
- November 29, 2019 at 10:23 am
  
  MemoriseXuxu
  Subscriber
  
  Thank you rwoolhou ! It is exactly what you explained.
  
  Best regards
  
  Memorise

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