Applicability of compressible liquid density method

- December 3, 2020 at 10:57 am
  
  Luigi0
  Subscriber
  
  Hi,nI want to simulate acoustophoresis phenomena. Since the velocity of the fluid (water) is low and the dimension of the channel is in the range of millimiter range, the Re number is a low value so the flow is laminar. Since the propagation of pressure waves is needed, I need compressibility, so I enable the compressible liquid method. In the fluent guide I see that this method is used for high pressure applications, but is not my case.nIs it reasonable to apply this method in my problem?n
- December 3, 2020 at 1:28 pm
  
  DrAmine
  Ansys Employee
  
  Apply it. If you have some particular EOS for the liquid you can use it too but you need to implement it. n
- December 3, 2020 at 2:35 pm
  
  Luigi0
  Subscriber
  
  Thanks, and how can I implement an equation of state?n
- December 3, 2020 at 3:59 pm
  
  DrAmine
  Ansys Employee
  
  User Defined Real Gas Model (Advanced) or via DEFINE_PROPERTY (if and only if compressible liquid) https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v202/en/flu_udf/flu_udf_sec_define_property.html?q=compressible%20liquidn

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