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Forum: FLUENT

April 1, 2012, 06:00

Replies: 19

Continuity convergence issue on a 3d wing

Views: 11,750

Posted By Nick R

if you know how to do a 2d hex mesh around a...

if you know how to do a 2d hex mesh around a foil, the 3d scheme will be easy for you. Instead of creating a 2d block begin by creating a 3d block and associate edges to curves accordingly in three...

Forum: FLUENT

March 29, 2012, 20:06

Replies: 19

Continuity convergence issue on a 3d wing

Views: 11,750

Posted By Nick R

The best tutorial I've come across for...

The best tutorial I've come across for aerodynamic purposes is on youtube. Just run a search on ICEM airfoil and you'll find Simon's three-part tutorial. It'll teach you how to do 2d hex meshing...

Forum: FLUENT

March 28, 2012, 22:08

Replies: 19

Continuity convergence issue on a 3d wing

Views: 11,750

Posted By Nick R

Thank you both for your comprehensive responses....

Thank you both for your comprehensive responses. Given your explanation my solution has converged at 4degrees.

Forum: FLUENT

March 26, 2012, 04:33

Replies: 19

Continuity convergence issue on a 3d wing

Views: 11,750

Posted By Nick R

OK. I'm beginning to understand what you...

OK. I'm beginning to understand what you mean...so in my case a look at the unscaled residuals would be a better way to judge convergence in addition to the lift coefficient since the initial guess...

Forum: FLUENT

March 25, 2012, 03:45

Replies: 19

Continuity convergence issue on a 3d wing

Views: 11,750

Posted By Nick R

Thanks for your answer. I can't quite follow what...

Thanks for your answer. I can't quite follow what you mean by residuals aren't a good criterion for convergence. I monitor lift and drag for judging convergence as well as the residuals. Continuity...

Forum: FLUENT

March 22, 2012, 07:46

Replies: 19

Continuity convergence issue on a 3d wing

Views: 11,750

Posted By Nick R

Thanks for your response. My AOA is 4 degrees and...

Thanks for your response. My AOA is 4 degrees and the structured hex mesh was created in ICEM. Reynolds is 100,000 (chord-based). The steady solver only goes down to 10^-3. The unsteady solver's...

Forum: FLUENT

March 21, 2012, 22:25

Replies: 19

Continuity convergence issue on a 3d wing

Views: 11,750

Posted By Nick R

Continuity convergence issue on a 3d wing

Hi all,

I'm modelling a section of a 3d wing with a c-grid topology using the k-kl-w transitional model in Fluent. I have velocity-inlet and pressure-outlet BCs and the side planes are periodic....

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