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Forum: OpenFOAM Running, Solving & CFD

March 22, 2013, 10:28

Replies: 16

Increasing level of water two-Phase Channel Flow

Views: 2,238

Posted By nore5

Boundary conditions at inlet and outlet

Hi,

Thank you for your case files.

I had a look at it and realized you were applying wrong boudary conditions at the inlet and outlet. If you look at at the inlet face, you can see you have...

Forum: OpenFOAM Running, Solving & CFD

March 19, 2013, 12:26

Replies: 16

Increasing level of water two-Phase Channel Flow

Views: 2,238

Posted By nore5

Hi, Thanks for your answer. In fact,...

Hi,

Thanks for your answer.

In fact, if you set type inletOutlet;
inletValue uniform 0;
value uniform 0;
for your alpha outlet BC then have a look...

Forum: OpenFOAM Running, Solving & CFD

March 19, 2013, 05:10

Replies: 16

Increasing level of water two-Phase Channel Flow

Views: 2,238

Posted By nore5

New settings results (water level decreases !?)

After trying your new settings, my level of water just decreases suddenlyt at the outlet (after 20 s), did you keep alpha1 set to weroGradient at the outlet please?

I will try the same BC for the...

Forum: OpenFOAM Running, Solving & CFD

March 19, 2013, 04:22

Replies: 16

Increasing level of water two-Phase Channel Flow

Views: 2,238

Posted By nore5

Thank you very much. I am now trying these new...

Thank you very much. I am now trying these new settings.

However do you have an explanation of why these BCs work better than the other ones?

I also noticed that you changed the internal field...

Forum: OpenFOAM Running, Solving & CFD

March 18, 2013, 09:28

Replies: 16

Increasing level of water two-Phase Channel Flow

Views: 2,238

Posted By nore5

Thanks again for your reply. After your...

Thanks again for your reply.

After your last answer, I tried many other things without success. The last idea that came to my mind is to run the case with OpenFoam 1.7.1 for example as I have...

Forum: OpenFOAM Running, Solving & CFD

March 13, 2013, 09:39

Replies: 16

Increasing level of water two-Phase Channel Flow

Views: 2,238

Posted By nore5

No changes...

Sorry for the delay.

I tried your last suggestions by increasing the free surface water mesh resolution, reducing courant number and introducing nouterCorrectors. Same results as before...

Forum: OpenFOAM Running, Solving & CFD

March 12, 2013, 04:27

Replies: 16

Increasing level of water two-Phase Channel Flow

Views: 2,238

Posted By nore5

Thank you for your answer. I will apply...

Thank you for your answer.

I will apply your suggestions and forward to you.

Air viscosity (kinematic) is set to 1.48e-5 m**2 s*(-1). Should I reduce too? This won t be really realistic, even...

Forum: OpenFOAM Running, Solving & CFD

March 11, 2013, 08:34

Replies: 16

Increasing level of water two-Phase Channel Flow

Views: 2,238

Posted By nore5

Thank you for you answer but the change I have...

Thank you for you answer but the change I have done upon your advice did not change much to the patterns of my simulation. The whole water level increases in the domain after, say 4500 s as in my...

Forum: OpenFOAM Running, Solving & CFD

March 7, 2013, 10:44

Replies: 16

Increasing level of water two-Phase Channel Flow

Views: 2,238

Posted By nore5

Increasing level of water two-Phase Channel Flow

Hi!

I am trying to simulate a two phase channel flow using interFoam. I have tried two settings. One is exactly the same as LTSinterFoam and the other one is built trying to follow the guidelines...

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