[son1122]

hi, guys, .i have a problem with pressure far-field boundary condition. I want to practice and validate CFD result form CFD Computation of Magnus Moment and Roll Damping Moment of a Spinning Projectile by James DeSpirito and Karen R. Heavey
and I see https://www.youtube.com/watch?v=uhBtGrxZlpY&t=750s that show how to set this condition. however, my residual seems to be divergence and flow field seems to be incorrect as you can see
Screenshot (122).jpg

Screenshot (123).jpg

Screenshot (124).jpg

Screenshot (126).jpg

Screenshot (125).jpg
anyone has any idea ? thank you

[vinerm]

You should include the far-field settings that you are using as an image in the post. Furthermore, I suppose you have already set operating pressure as 0 and material density as ideal gas. Try fmg initialization. If the case fails to initialize with fmg method, then there is some problem with the setup.

[son1122]

Originally Posted by vinerm

You should include the far-field settings that you are using as an image in the post. Furthermore, I suppose you have already set operating pressure as 0 and material density as ideal gas. Try fmg initialization. If the case fails to initialize with fmg method, then there is some problem with the setup.

thank you for your reply My set up is wrong as you say because of over turbulent parameter. thank you so much vinerm.regard