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Forum: OpenFOAM Running, Solving & CFD

September 4, 2008, 03:00

Replies: 218

LES

Views: 58,756

Posted By cedric_duprat

Hi Daniel and Guanghao, Abo

Hi Daniel and Guanghao,

About wall model, there are lots of way to check if there is or not wall model in OF for LES:
1- shearch for "wall model LES" and you will find in this thread...

Forum: OpenFOAM Running, Solving & CFD

July 30, 2007, 11:11

Replies: 218

LES

Views: 58,756

Posted By cedric_duprat

hi all, I'm (again) trying

hi all,

I'm (again) trying to integrate a near wall scaling with adverse pressure gradient in OF after a few month break on this topic.

1- a "comment-question" on law of the wall in OF, the...

Forum: OpenFOAM Running, Solving & CFD

July 18, 2007, 08:39

Replies: 218

LES

Views: 58,756

Posted By cedric_duprat

yes, ...sure http://www.cfd-on

yes, ...sure http://www.cfd-online.com/OpenFOAM_Discus/clipart/happy.gif
so :
1- with your last run (picture) you know the inlet pressure, so why don't you put the same at the outlet ?
2- other...

Forum: OpenFOAM Running, Solving & CFD

July 18, 2007, 03:40

Replies: 218

LES

Views: 58,756

Posted By cedric_duprat

so, ... I don't get what is t

so, ...
I don't get what is the problem, you fixed the pressure at 0 at the outlet so, if your pressure is higher than 0 before (that's your case), the pressure will decrease to get your hand fixed...

Forum: OpenFOAM Running, Solving & CFD

July 18, 2007, 02:28

Replies: 218

LES

Views: 58,756

Posted By cedric_duprat

you fixed the velocity at the

you fixed the velocity at the inlet, what about the pressure value at your outlet BC ? is it, for exemple 0 ?
did you change something at "line division" 40 (see your Graph)?
that's all I was...

Forum: OpenFOAM Running, Solving & CFD

July 17, 2007, 10:41

Replies: 218

LES

Views: 58,756

Posted By cedric_duprat

Hi Marhamat I'm not sure to

Hi Marhamat

I'm not sure to get your graph but, as I understand, your pressure decrease right ?
Does your geometry 200 lenght or do you use cyclic BC to get these results ?
what about your...

Forum: OpenFOAM Running, Solving & CFD

May 18, 2007, 09:06

Replies: 218

LES

Views: 58,756

Posted By cedric_duprat

Hi Eugene, thank you for your

Hi Eugene,
thank you for your reply,
1- I think (and I think you also will agree) that the effect of pressure gradient is fonction of the geometry, isn't it ?. Mine is a diffuser so I "hope"...

Forum: OpenFOAM Running, Solving & CFD

May 18, 2007, 03:33

Replies: 218

LES

Views: 58,756

Posted By cedric_duprat

Hi everyone I would like th

Hi everyone

I would like there to continue the upper discution between Eugene de Villiers and Rolando Maier (April 2005...)
I'm interested in implementation of the pres-grad-sens wall...

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