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Forum: OpenFOAM Running, Solving & CFD

July 8, 2005, 09:36

Replies: 218

LES

Views: 58,696

Posted By ralph

Thanks for the explanation Eug

Thanks for the explanation Eugene.
I got it :-)

Forum: OpenFOAM Running, Solving & CFD

July 8, 2005, 09:06

Replies: 218

LES

Views: 58,696

Posted By ralph

Thanks Eugene, I´ll take the

Thanks Eugene,
I´ll take the channelOodles parameters and leave them unchanged.
By the way, what does "maxDeltaRatio" stand for?

Ralph

Forum: OpenFOAM Running, Solving & CFD

July 8, 2005, 07:36

Replies: 218

LES

Views: 58,696

Posted By ralph

Does anyone know, if there is

Does anyone know, if there is a Re number dependency of the VanDriest coeffiecients Aplus and Cdelta (used in turbulenceProperties/vanDriestCoeffs)?

Ralph

Forum: OpenFOAM Running, Solving & CFD

June 24, 2005, 07:32

Replies: 218

LES

Views: 58,696

Posted By ralph

I think that is what I was loo

I think that is what I was looking for all the time.
Thanks a lot Eugene for publishing it.

Ralph

Forum: OpenFOAM Running, Solving & CFD

June 23, 2005, 05:33

Replies: 218

LES

Views: 58,696

Posted By ralph

I´ve done 10000 - 20000 timest

I´ve done 10000 - 20000 timesteps in the different attempts.
But there seemed to be reached a steady state much earlier.

Forum: OpenFOAM Running, Solving & CFD

June 23, 2005, 05:02

Replies: 218

LES

Views: 58,696

Posted By ralph

Thanks a lot Henry

Thanks a lot Henry

Forum: OpenFOAM Running, Solving & CFD

June 23, 2005, 04:43

Replies: 218

LES

Views: 58,696

Posted By ralph

Thanks Henry, I´m glad to hea

Thanks Henry,
I´m glad to hear it´s not the simulation parameters that are the problem.
I use the same mesh and the same setup as published. The wall function I use, is not the same, but I think...

Forum: OpenFOAM Running, Solving & CFD

June 23, 2005, 04:16

Replies: 218

LES

Views: 58,696

Posted By ralph

Hello, could anybody give me

Hello,
could anybody give me a hint, if there is a lack in the parameter configuration I´ve chosen. See above (Wednesday, June 22, 2005 - 05:26 am).

As I use a wall function, I don´t use...

Forum: OpenFOAM Running, Solving & CFD

June 22, 2005, 07:26

Replies: 218

LES

Views: 58,696

Posted By ralph

Thanks Henry, thanks Eugene,

Thanks Henry, thanks Eugene,
I just looked at my settings and the results of the calculation.
Henry:
-Re = 40000
-Co = about 0.8
-I use the same discretisation schemes as in the...

Forum: OpenFOAM Running, Solving & CFD

June 22, 2005, 06:06

Replies: 218

LES

Views: 58,696

Posted By ralph

Hello, I´ve been using OpenFO

Hello,
I´ve been using OpenFOAM for a short time. I wanted to do some primitive LES calculations of a repeated channel geometry. I used wall functions at the walls, to save mesh resolution. As...

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