On pressure reflection in fluid analysis

- March 29, 2018 at 10:56 pm
  
  fuyu-m
  Subscriber
  
  I have a question about the boundary condition of Discovery Live. I would be happy if you could answer the question.
  
  Discovery Live can not set nonreflective boundary conditions. Pressure reflection may occur if the boundary condition of pressure 0 [Pa] is set at the outlet of the fluid area. Although it seems that pressure reflection seems to be stopped after a while, is this condition OK even if it is regarded as the same state as when pressure reflection did not occur?
  
  Thank you.
- March 30, 2018 at 9:00 am
  
  Naresh Patre
  Ansys Employee
  
  Hello Wintercat I will check with the team and get back to you.
  - April 1, 2018 at 10:27 pm
    
    fuyu-m
    Subscriber
    
    Naresh Patre , Thank you very much.
    I appreciate being able to give you an answer.
  - April 2, 2018 at 6:10 am
    
    Naresh Patre
    Ansys Employee
    
    Wintercat Discovery Live can handle weakly compressible (< Mach 0.3) flows due to which there might be some pressure reflection observed. But as mentioned earlier, this boundary condition cannot be handled in Discovery currently.
  - April 2, 2018 at 11:07 pm
    
    fuyu-m
    Subscriber
    
    Naresh Patre , Thank you for your response.
    In Discovery Live, if the calculation area is widely taken, the analysis accuracy will degrade.
    So I hope to be able to set nonreflective boundary conditions in Discovery Live.
    
    Thank you.

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