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Forum: OpenFOAM

April 4, 2010, 23:29

Replies: 6

the problem about"Max(gamma)>1"

Views: 2,207

Posted By zhajingjing

gamma>1 also happen in my piston type wavemaker

Hi,

In fact, in my piston type wavemaker cases, the maximum gamma value also reach to 1.004. Why, is it the reason of the singularity at the intersection of the wavemaker and free surface?

Forum: OpenFOAM

March 11, 2010, 07:18

Replies: 6

the problem about"Max(gamma)>1"

Views: 2,207

Posted By zhajingjing

Hi Kathrin, I use this :" div(phi,gamma) ...

Hi Kathrin,

I use this :" div(phi,gamma) Gauss vanLeer;" after I change to "div(phi,gamma) Gauss upwind", I find this problem still exist.
I find that the unbounded gamma comes out the area...

Forum: OpenFOAM

March 10, 2010, 05:12

Replies: 6

the problem about"Max(gamma)>1"

Views: 2,207

Posted By zhajingjing

Hi Niels, The courant number is just...

Hi Niels,

The courant number is just around 0.5,never beyond 1.Even after I limit the maxCo below 0.2, Max(gamma) is still beyond 1, sometines even 1.2....I wonder whether I set the boundary...

Forum: OpenFOAM

March 10, 2010, 00:50

Replies: 6

the problem about"Max(gamma)>1"

Views: 2,207

Posted By zhajingjing

the problem about"Max(gamma)>1"

Hello everyone,
I use a flap-type wavemaker to make wave, during the calculation, I find the Max(gamma)>1, is this a serious problem which will affect the accuracy of the result?

......

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