Fluids

Fluids

convergence

    • Ibrahimabdullah
      Subscriber

      I am getting the following issue when running my simulation.. sometime it crashes and sometimes it goes smooth.. anyone has any idea? i used both k-omega-sst and SA models.


      my results are accurate according to the LR.


       



       


    • Karthik R
      Administrator

      What is your mesh quality - min orthogonal ratio and max skewness?


      What problem are you trying to solve? What are your solver settings?


      Thanks.


      Karthik

    • Ibrahimabdullah
      Subscriber

      actually i realized that my Graphix card is not sufficient to run high number of elements thats why it keep crashing. im solving uav (flying wing) and i dropped the number of elements and change the residual from 0.0001 to 0.001 and it converged smoothly .. here is my mesh quality. 


       



       



       


      i used SA TURBULENCE MODEL 


      MACH 0.2 = 68 M/S AT AOA 20 


       

    • Karthik R
      Administrator

      Perfect! Good to know! 

    • Ibrahimabdullah
      Subscriber

      THANK YOU SO MUCH 

Viewing 4 reply threads
  • You must be logged in to reply to this topic.