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Forum: OpenFOAM Running, Solving & CFD

July 4, 2008, 09:08

Replies: 218

LES

Views: 58,697

Posted By maka

y is initialized to GREAT as a

y is initialized to GREAT as a result above the cutOff the expression reduces to:

min(geometricDelta_(), GREAT)

This is according to the following comment:

Description
Holds...

Forum: OpenFOAM Running, Solving & CFD

July 4, 2008, 08:59

Replies: 218

LES

Views: 58,697

Posted By maka

The expression is: delta_ =

The expression is:

delta_ = min
(
static_cast<const>(geometricDelta_()),
(kappa_/Cdelta_)*((scalar(1) + SMALL) - exp(-y/ystar/Aplus_))*y
);

at high y/ystar...

Forum: OpenFOAM Running, Solving & CFD

July 4, 2008, 07:21

Replies: 218

LES

Views: 58,697

Posted By maka

What does wallPointYPlus::yP

[vanDriestDelta]
What does wallPointYPlus::yPlusCutOff = 500; do? any reason behind that? Thanks.

Best regards,
Maka.

Forum: OpenFOAM Running, Solving & CFD

February 29, 2008, 05:41

Replies: 218

LES

Views: 58,697

Posted By maka

@(August 10, 2005 - 04:50 pm)

@(August 10, 2005 - 04:50 pm)
\quote(nuSgs doesn't matter because it is calculated from k and delta.)

I have a related question. I've been using channelOodles for a while now. But suddenly, I...

Forum: OpenFOAM Running, Solving & CFD

April 30, 2007, 09:57

Replies: 218

LES

Views: 58,697

Posted By maka

The tutorial case of channelOo

The tutorial case of channelOodles gives a good result. You may start there.

Best regards,
Maka

Forum: OpenFOAM Running, Solving & CFD

April 26, 2007, 07:39

Replies: 218

LES

Views: 58,697

Posted By maka

Hi Marhamat, Thanks for the

Hi Marhamat,

Thanks for the email, that you sent me to my personal email. It is better to conduct the discussion here in the forum, so you can get comments from different people and such...

Forum: OpenFOAM Running, Solving & CFD

March 7, 2007, 08:31

Replies: 218

LES

Views: 58,697

Posted By maka

Yes, it is a pRefCell problem.

Yes, it is a pRefCell problem. Now, it works. Sorry I do not know how to work in debug mode. Thanks for your help.

Best regards,
Marwan.

Forum: OpenFOAM Running, Solving & CFD

March 7, 2007, 07:14

Replies: 218

LES

Views: 58,697

Posted By maka

If I do the following: 1) m

If I do the following:

1) modify the blockMeshDict as you did.
2) rm -r 0; cp -r 0.org 0;
3) run

I get the following:

Time = 2.8

Forum: OpenFOAM Running, Solving & CFD

March 7, 2007, 06:14

Replies: 218

LES

Views: 58,697

Posted By maka

This error message was generat

This error message was generated using oneEqEddy as in the standard tutorial case. Also using cyclic b.c. The only change was no. of cell in x,z = 3.

If I make the LESmodel=laminar the code...

Forum: OpenFOAM Running, Solving & CFD

March 7, 2007, 05:50

Replies: 218

LES

Views: 58,697

Posted By maka

channel395 1-2D I'm trying

channel395 1-2D

I'm trying to run channelOodles in laminar mode on 1 or 2 D geometry. I use this as a quick test when I modify the solver.

If we take the tutorial case channel395 and change...

Forum: OpenFOAM Running, Solving & CFD

January 9, 2007, 07:44

Replies: 218

LES

Views: 58,697

Posted By maka

your guess is right. Thanks.

your guess is right. Thanks.

Best regards,
Maka

Forum: OpenFOAM Running, Solving & CFD

January 8, 2007, 10:45

Replies: 218

LES

Views: 58,697

Posted By maka

half-channel simulation. (1

half-channel simulation.

(1) I ran a full channel computation with channelOodles and wall function. I got good approximate results. The reason that I insist on using a wall function that later I...

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