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Forum: Main CFD Forum

October 25, 2013, 09:05

Replies: 11

Problem in 3D Navier stokes solver

Views: 1,312

Posted By FMDenaro

it has no sense in comparing 3D and 2D solutions...

it has no sense in comparing 3D and 2D solutions due to the strong effect of the lateral walls.... you have to do a 2D run..
A possible chance is to run a lower Re case (Re=400) using the 3D solver...

Forum: Main CFD Forum

October 25, 2013, 08:54

Replies: 11

Problem in 3D Navier stokes solver

Views: 1,312

Posted By FMDenaro

you can not compare your 3D driven cavity with...

you can not compare your 3D driven cavity with the Ghia's solution that is 2D... have you tested the 2D OpenFoam solver?

Forum: Main CFD Forum

October 25, 2013, 06:01

Replies: 11

Problem in 3D Navier stokes solver

Views: 1,312

Posted By FMDenaro

1. is reaching or reached? 2. cell-by-cell? ...

1. is reaching or reached?
2. cell-by-cell?
3. are you using a first order extrapolation?
4. I don't know that paper, I suggest to check for a more quantitative variable than the snapshot of...

Forum: Main CFD Forum

October 25, 2013, 04:12

Replies: 11

Problem in 3D Navier stokes solver

Views: 1,312

Posted By FMDenaro

check if you really reached a steady solution,...

check if you really reached a steady solution, then check if the divergence-free constraint is satisfied cell-by-cell. The BC is correctly imposed?
Furthermore, you case is a 3D lid-driven, what...

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