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Forum: OpenFOAM Running, Solving & CFD

March 1, 2017, 03:18

Replies: 220

LES of turbulent channel flows

Views: 62,500

Posted By ptsxx

Hi,Elham do you get the correct u_tau=0.0079...

Hi,Elham

do you get the correct u_tau=0.0079 for case channel 395. i find that many people get the result u_tau = 0.73. i also meat the problem.i have tried all approaches to calculated u_tau,...

Forum: OpenFOAM Running, Solving & CFD

February 22, 2017, 03:31

Replies: 220

LES of turbulent channel flows

Views: 62,500

Posted By ptsxx

Darko, how do you calculate u_tau to...

Darko,

how do you calculate u_tau to nondimensionalize u and y to get the u+ and y+ data ?

Regards
Xu Bin

Forum: OpenFOAM Running, Solving & CFD

February 20, 2017, 21:55

Replies: 220

LES of turbulent channel flows

Views: 62,500

Posted By ptsxx

my result with all LES delta models and LES...

my result with all LES delta models and LES models are similar to your second simulation result.i even tried 3 different versions of openfoam code. but my data in log law are always bigger than the...

Forum: OpenFOAM Running, Solving & CFD

January 9, 2017, 04:53

Replies: 220

LES of turbulent channel flows

Views: 62,500

Posted By ptsxx

hellow i find that the the result of...

hellow

i find that the the result of channel395 in of2.4 is quite different from of3.0.
I have changed the Sgs model to dylagragian model in of 2.4 ,and the result seems similar to of 3.0 . i...

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