Residuals are not converging in inviscid flow

- June 24, 2019 at 9:56 am
  
  ari003
  Subscriber
  
  Problem statement- There are two airfoil separated by some specified amount of distance and I am supposed to take the reading of Cl of both of the airfoil at different angle of attack while the interaction of one airfoil over the other persists.
  I started with inviscid model but the result is very dissatisfying. The residuals are not converging, Cl monitor is oscillating heavily but the mass flux is under control. I tried the successive attempt by reducing the Pressure and momentum relaxation factor but the problem still continued. In the console window the statement is appearing " Stabilizing pressure coupled to enhance linear solver robustness.", don't know what does it mean. I ve attached the screenshot of the issue and any kind of help will be really appreciated
- June 24, 2019 at 10:56 am
  
  DrAmine
  Ansys Employee
  
  Apart that ANSYS Staff do not download attachements: Why inviscid?
- July 1, 2019 at 12:59 pm
  
  ari003
  Subscriber
  
  Inviscid because it is related to my project and I m capturing the result at each condition i.e inviscid, laminar and turbulent. Meanwhile the problem has been tackled by reducing the courant number.
- July 1, 2019 at 3:57 pm
  
  DrAmine
  Ansys Employee
  
  Good.

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