Learning Forum

[Ibrahimabdullah]

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 Remella]

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]

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 Remella]

Perfect! Good to know! 

[Ibrahimabdullah]

THANK YOU SO MUCH