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Showing results 1 to 9 of 9 Search took 0.00 seconds. Search: Posts Made By: aloeven

Forum: OpenFOAM Programming & Development March 1, 2011, 03:37

Replies: 123 gamma-ReTheta turbulence model for predicting transitional flows Views: 31,820 Posted By aloeven Hmm, perhaps calibrating the correlation will... Hmm, perhaps calibrating the correlation will improve things. But indeed the difference, especialy for case T3A is quite big. For the airfoil case, I would like to do some xfoil simulations to...

Forum: OpenFOAM Programming & Development February 28, 2011, 13:54

Replies: 123 gamma-ReTheta turbulence model for predicting transitional flows Views: 31,820 Posted By aloeven You're welcome. That's what this forum is for. ... You're welcome. That's what this forum is for. I noticed that something was wrong when I saw the results for higher angles of attack, they were completely wrong. I think also your results will now...

Forum: OpenFOAM Programming & Development February 28, 2011, 10:25

Replies: 123 gamma-ReTheta turbulence model for predicting transitional flows Views: 31,820 Posted By aloeven Hi Felix, I have a question about the... Hi Felix, I have a question about the correlation for ReThetac. You state that the CFX_v1.1 version is implemented according the AIAA paper of Langtry and Menter. In the source code I see that the...

Forum: OpenFOAM Programming & Development February 25, 2011, 09:27

Replies: 123 gamma-ReTheta turbulence model for predicting transitional flows Views: 31,820 Posted By aloeven Ok, I would suggest to try an airfoil first to... Ok, I would suggest to try an airfoil first to get an idea of how this model works. And definitely read the thesis of Langtry. There are important mesh requirements on y+, stretching ratio and...

Forum: OpenFOAM Programming & Development February 25, 2011, 05:55

Replies: 123 gamma-ReTheta turbulence model for predicting transitional flows Views: 31,820 Posted By aloeven @salvatore You have to compile a turbulence... @salvatore You have to compile a turbulence model as a library using: wmake libso You can make a Make directory in the gammaThetatSST directory with two files: files and options. files:...

Forum: OpenFOAM Programming & Development February 25, 2011, 05:45

Replies: 123 gamma-ReTheta turbulence model for predicting transitional flows Views: 31,820 Posted By aloeven @Felix Indeed you can say that kOmegaSST is... @Felix Indeed you can say that kOmegaSST is overpredicting lift. Did you observe this in your simulations as well? I have done a grid convergence study and I'm confident that this solution is...

Forum: OpenFOAM Programming & Development February 25, 2011, 04:58

Replies: 123 gamma-ReTheta turbulence model for predicting transitional flows Views: 31,820 Posted By aloeven Hi Felix, I agree with you on the drag... Hi Felix, I agree with you on the drag coefficient. Unfortunately I don't have an experimental skin friction distribution to compare with. I was a bit to quick on the lift. It makes sense that...

Forum: OpenFOAM Programming & Development February 25, 2011, 03:25

Replies: 123 gamma-ReTheta turbulence model for predicting transitional flows Views: 31,820 Posted By aloeven Ok, I have some first results using the default... Ok, I have some first results using the default settings for the coefficients. The case is a NACA63-618 airfoil at 0 degrees angle of attack. Re=6 million. My grid has a maximum y+ of 0.48 and a...

Forum: OpenFOAM Programming & Development February 24, 2011, 10:08

Replies: 123 gamma-ReTheta turbulence model for predicting transitional flows Views: 31,820 Posted By aloeven Thank Felix! I've been waiting for a... Thank Felix! I've been waiting for a transition model for a long time, but didn't have the time to implement it myself. I'm running some airfoil tests at the moment. If the results for 0deg are...

Showing results 1 to 9 of 9

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