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Natural Convection - cavity - problem

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Old   October 3, 2021, 22:51
Default same issue
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michael villame
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Originally Posted by sadsid View Post
If you want I can share my mesh so that you can test your case on a mesh with stretching introduced on side walls. I think you are struggling because of mesh!
Hello,

Would you mind sharing your case folder so that I would be able to learn from you? I struggled with the same problem, though my physics is for solid-liquid phase change, not the air inside a closed cavity.
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Old   October 3, 2021, 22:53
Default struggling with the same issue
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Originally Posted by kerim View Post
Hi,


You were right about 3D. I used graded mesh in the OX and OY directions, and uniform mesh in the OZ direction. And got better kOmegaSST results. May be I should take more finer 3D mesh.


Going ahead, I faced with the next error during LES modelling:



--> FOAM FATAL ERROR:

[U[0 1 -2 0 0 0 0] ] == [-grad(p)[1 -2 -2 0 0 0 0] ]


I never used LES but I know the problem is concerned with dimensions.

Could you help me to resolve this issue?
Hey,

Would you mind posting your case folder for me to learn it? Your residuals are pretty good for me. I wanna have a result like that, though my problem is for solid-liquid phase change, with incompressible assumption. But maybe, adding turbulence or compressibility factors would change my result.
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Old   October 4, 2021, 12:43
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Originally Posted by mikulo View Post
Hello,

Would you mind sharing your case folder so that I would be able to learn from you? I struggled with the same problem, though my physics is for solid-liquid phase change, not the air inside a closed cavity.
Which case?
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Old   October 5, 2021, 22:25
Default Asking for test case
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Originally Posted by sadsid View Post
I formulated 3D-LES model and used 90x80x180 number of cells. I think, a little more dense mesh will give me more closer results. Your boundary conditions are correct. I think you should increase the number of cells.
Hey,

This is the test case I would like to see if you don't mind. Thank you!

Regards,
Mike
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Old   October 7, 2021, 00:12
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Originally Posted by mikulo View Post
Hey,

This is the test case I would like to see if you don't mind. Thank you!

Regards,
Mike
Hey give me your email. it's not possible to upload here.
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Old   October 7, 2021, 00:37
Default email
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michael villame
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Originally Posted by sadsid View Post
Hey give me your email. it's not possible to upload here.
Hello,

Thanks for getting back to me. Here is my email.

michaelv@hanyang.ac.kr
michael.villame@gmail.com

Thanks a lot!

Regards,
Mike
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