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Forum: OpenFOAM Running, Solving & CFD

March 6, 2014, 01:28

Replies: 15

p_rgh with chtMultiRegionFoam

Views: 2,124

Posted By styx

For this model I have no experimental data to...

For this model I have no experimental data to compare with. I want to compare the results with ansys cfx. Maybe there will be a experiment with a real pebble bed to compare with in a few months.

Forum: OpenFOAM Running, Solving & CFD

March 5, 2014, 11:29

Replies: 15

p_rgh with chtMultiRegionFoam

Views: 2,124

Posted By styx

Here is the rescaled velocity field. Gravity is...

Here is the rescaled velocity field. Gravity is not activated in both cases.
29147

The overall velocity in this second picture is lower than in the old picture (old simulation) because I have...

Forum: OpenFOAM Running, Solving & CFD

March 5, 2014, 10:57

Replies: 15

p_rgh with chtMultiRegionFoam

Views: 2,124

Posted By styx

I have the first results of the simulation with...

I have the first results of the simulation with fixedMeanValue BC for p and p_rgh. The pressure distribution is the same as you can see in the pictures from the first post.
The velocity field looks...

Forum: OpenFOAM Running, Solving & CFD

March 5, 2014, 08:15

Replies: 15

p_rgh with chtMultiRegionFoam

Views: 2,124

Posted By styx

Thank you very much for your reply. It was very...

Thank you very much for your reply. It was very helpful.
The simulation is no running with "fixedMeanValue".
I´m looking forward for the results.

Forum: OpenFOAM Running, Solving & CFD

March 5, 2014, 02:30

Replies: 15

p_rgh with chtMultiRegionFoam

Views: 2,124

Posted By styx

Iam sorry to ask you again. I´m trying to install...

Iam sorry to ask you again. I´m trying to install the library described in the first link. I´m not sure in which folder I have to copy the files. I is the first time I add any sources to my openfoam...

Forum: OpenFOAM Running, Solving & CFD

March 4, 2014, 07:55

Replies: 15

p_rgh with chtMultiRegionFoam

Views: 2,124

Posted By styx

The link in the thread about this topic does not...

The link in the thread about this topic does not open. Is there another source where I can get the library?

Forum: OpenFOAM Running, Solving & CFD

March 4, 2014, 06:50

Replies: 15

p_rgh with chtMultiRegionFoam

Views: 2,124

Posted By styx

I would prefer to try the "fixedMeanValue"...

I would prefer to try the "fixedMeanValue" boundary. I the thread from obove, the meanValue is 3.3. What does this Value say? Can I try a value of the same order?

Forum: OpenFOAM Running, Solving & CFD

March 4, 2014, 06:11

Replies: 15

p_rgh with chtMultiRegionFoam

Views: 2,124

Posted By styx

Thanks for the quick reply. fluidwall is not...

Thanks for the quick reply.

fluidwall is not the wall of the cylindrical channel. This is just an empty boundary which comes from snappyHexMesh. It is a real 3D Simulation. The wall of the channel...

Forum: OpenFOAM Running, Solving & CFD

March 4, 2014, 02:07

Replies: 15

p_rgh with chtMultiRegionFoam

Views: 2,124

Posted By styx

p_rgh with chtMultiRegionFoam

Hello,

I want do simulate the cooling prozess of a hot sphere (500K) in a cylindrical air-flow.(pictures) 29065

Iam not sure which boundary conditions for p and p_rgh I should choose. I added...

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