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Showing results 1 to 12 of 12 Search took 0.00 seconds. Search: Posts Made By: lakeat

Forum: OpenFOAM Running, Solving & CFD January 12, 2010, 09:31

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat Yes By ajusting Ck you can change Cs, I... Yes By ajusting Ck you can change Cs, I suggest you read some papers to get an idea about their detailed relationship. Regards,

Forum: OpenFOAM Running, Solving & CFD January 12, 2010, 08:55

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat Easy, you just need to choose VanDriest ... Easy, you just need to choose VanDriest Regards,

Forum: OpenFOAM Running, Solving & CFD July 24, 2009, 03:00

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat Sorry, I don't quite understand your question. ... Sorry, I don't quite understand your question. Are you refering to Channel Flow case? Anyway, you can read these two posts: ...

Forum: OpenFOAM Running, Solving & CFD July 23, 2009, 21:35

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat Hi Gaby! I am not familiar with that case,... Hi Gaby! I am not familiar with that case, but I think it's not that hard, you can figure it out, at least you can find reference from his paper. And to Sandy, I think your question is too big...

Forum: OpenFOAM Running, Solving & CFD July 6, 2009, 22:00

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat Hi Gaby, Sorry, I am not familiar with your... Hi Gaby, Sorry, I am not familiar with your case, so I cannot give much help. But are you sure channelOodles is suitable for your FPG case? I guess equations like "utau = sqrt( -D/(4*rho) *...

Forum: OpenFOAM Running, Solving & CFD June 26, 2009, 05:50

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat from my post " June 16, 2009, 03:26", you will... from my post " June 16, 2009, 03:26", you will see how to get wallshearstress; then I do an average of wallshearstress; then sqrt(wallshearstress); :)

Forum: OpenFOAM Running, Solving & CFD June 16, 2009, 03:48

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat O, yes, my mistake:D:D:D:D:D:D:D:D. Thank... O, yes, my mistake:D:D:D:D:D:D:D:D. Thank you Niels! Another question, how did you get coefficient Cf? Using sum(wallShearStress) or using file gradP.raw, which is the easist way that you went?

Forum: OpenFOAM Running, Solving & CFD June 16, 2009, 03:26

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat Hi, can anyone tell me how did you get the U+... Hi, can anyone tell me how did you get the U+ versus y+ data? My results is wrong, so I lost my idea about the procedure... 1. Get wall shear stress wallShearStress.boundaryField()[patchi] =...

Forum: OpenFOAM Running, Solving & CFD June 3, 2009, 09:41

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat :eek: I see. ...... I calculate u_taw from a... :eek: I see. ...... I calculate u_taw from a wallShearStress utility, of cause in an averaging sense. ^^^^^^^^^ I guess they are the same, since the essence are the same, right?

Forum: OpenFOAM Running, Solving & CFD June 3, 2009, 09:16

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat Am I missing something??? As I remember, I have... Am I missing something??? As I remember, I have never used gradP to get U_tau. :confused::confused::confused::eek::eek::eek:

Forum: OpenFOAM Running, Solving & CFD June 3, 2009, 08:58

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat Your objective is?? Why do you care about it? :D:) Your objective is?? Why do you care about it? :D:)

Forum: OpenFOAM Running, Solving & CFD June 3, 2009, 08:00

Replies: 220 LES of turbulent channel flows Views: 62,461 Posted By lakeat I guess he meant gradP.raw :):D;):cool::rolleyes: I guess he meant gradP.raw :):D;):cool::rolleyes:

Showing results 1 to 12 of 12

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