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-   -   temperature gradient driven cavity flow.... OpenFOAM (http://www.cfd-online.com/Forums/openfoam-solving/103491-temperature-gradient-driven-cavity-flow-openfoam.html)

Nishchal June 19, 2012 09:23

temperature gradient driven cavity flow.... OpenFOAM
 
Hi,

I am relatively new to openFOAM.
I Want to setup a test case... temperature gradient driven cavity flow.

I am confused as to which solver to be used.
Is chtMultiRegionFoam a good choice to simulate this problem?

Also how to go about setting up this case? Are there any tutorials available?
I couldn't find any on my own. Any help would really be appreciated.

akidess June 19, 2012 09:33

Use buoyantBoussinesqSimpleFoam and set boundary conditions accordingly.

Sherlock_1812 September 3, 2013 06:13

Quote:

Originally Posted by Nishchal (Post 367211)
Hi,

I am relatively new to openFOAM.
I Want to setup a test case... temperature gradient driven cavity flow.

I am confused as to which solver to be used.
Is chtMultiRegionFoam a good choice to simulate this problem?

Also how to go about setting up this case? Are there any tutorials available?
I couldn't find any on my own. Any help would really be appreciated.

Hi Nischal,

I am trying the same too. Have you been successful in implementing it? I know its an old thread but it shall be really helpful if you reply.

Mojtaba.a September 3, 2013 08:36

Quote:

Originally Posted by Sherlock_1812 (Post 449532)
Hi Nischal,

I am trying the same too. Have you been successful in implementing it? I know its an old thread but it shall be really helpful if you reply.

it doesn't need to be implemented. It is already implemented in openFOAM.

All you have got to do is to use cavity mesh and set correct boundary conditions.

If you are not able to setup one, give me some more detailed information to help you setup your case.

Best,
Mojtaba

Sherlock_1812 September 26, 2013 13:35

Hi all,

I've modified the cavity case into a liquid bridge with free surfaces on top and the bottom and side walls. I want to observe buoyancy driven flow between the two free surfaces.

I'm having doubts with the bc's for p_rgh and U for this modified case. What should be the correct bc's in these conditions?

Thanks in advance!


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