[m15t3r_r0b0t]

I am doing a comparison of various solvers in the transition regime with regard to the LSB separation, reattachment etc. - Fluent, OpenFOAM etc. using the Gamma-Re-Theta model. I created a mesh using Pointwise and plan to use it for all the solvers. I was wondering if I should use one mesh throughout all the solvers, or perform mesh independence for all solvers before moving ahead? Please help. Also, if someone could explain why I can do one and not the other, that would be amazing!

Thanks.

[sbaffini]

That pretty much depends from what answers you want from your comparison.

Actually, you can do both.

[m15t3r_r0b0t]

Originally Posted by sbaffini

That pretty much depends from what answers you want from your comparison.

Actually, you can do both.

Thanks for replying. I want to compare the transition, separation and reattachment points, the length of the laminar separation bubble and Reynolds Stress contours. Finally, I want to draw a comparison on how much each software is under/over predicting the results as compared to wind tunnel data.

[sbaffini]

I guess then that you want to do both. Pick up a common starting grid and a series of refinements stopping at the level where all the solvers are converged