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bubble rising grid study problem!

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Old   July 15, 2015, 09:50
Default bubble rising grid study problem!
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Mohammad reza
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Dear Foam Users,


I did a simple run: 2d bubble rising with solver interFoam.
The problem is that when I run on a finer mesh, the results have more error with comparison to Hysing et al.*

Do you know why?!


You can see the code and results in attachment.


Thanks a lot in advance!


Attached Images
File Type: png bubble rising.PNG (24.7 KB, 16 views)
File Type: png Position of bubble.PNG (21.4 KB, 18 views)
File Type: png rise velosity grid 300-600.PNG (14.0 KB, 14 views)
Attached Files
File Type: zip bubble rising.zip (9.4 KB, 7 views)
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Last edited by mreza_cfd; July 16, 2015 at 08:03.
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Old   August 12, 2019, 05:39
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PRASHANT MAHTO
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Quote:
Originally Posted by mreza_cfd View Post
Dear Foam Users,


I did a simple run: 2d bubble rising with solver interFoam.
The problem is that when I run on a finer mesh, the results have more error with comparison to Hysing et al.*

Do you know why?!


You can see the code and results in attachment.


Thanks a lot in advance!


when i run your programming , then the bubble stays at one place it doesnot move upward.
why this is so?
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