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How to add a tangential wall velocity in Euler-Euler model (Multiphase flow)

Posted 31 août 2016, 03:29 UTC−4 Computational Fluid Dynamics (CFD) Version 5.2a 3 Replies

Rodrigue Farah
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Hello, i trying to simulate a multiphase flow inside a rotating tube, could anyone help me to find out how to add a rotating bondary condition on the wall plz??
Thank you in advance
3 Replies Last Post 17 janv. 2017, 06:39 UTC−5
Sohan Birla
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Posted: 8 years ago 31 août 2016, 11:57 UTC−4

Hello, i trying to simulate a multiphase flow inside a rotating tube, could anyone help me to find out how to add a rotating bondary condition on the wall plz??
Thank you in advance


On the the wall, select sliding boundary condition, and in velocity field type radial_vel*ny and - radial_vel*nx for x, y field components if the axis of rotation is z axis. radial velocity is the equal to tube radius*2*pi*rotation_per_second*

Best wishes,
Sohan
[QUOTE] Hello, i trying to simulate a multiphase flow inside a rotating tube, could anyone help me to find out how to add a rotating bondary condition on the wall plz?? Thank you in advance [/QUOTE] On the the wall, select sliding boundary condition, and in velocity field type radial_vel*ny and - radial_vel*nx for x, y field components if the axis of rotation is z axis. radial velocity is the equal to tube radius*2*pi*rotation_per_second* Best wishes, Sohan
Rodrigue Farah
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Posted: 8 years ago 2 sept. 2016, 08:22 UTC−4
thanks for your reply but in the multiphase flow there is no sliding wall option, you can only find slip condition without being able to add anything unlike the single flow model where you can add a tangential velocity to your wall.

Regards
thanks for your reply but in the multiphase flow there is no sliding wall option, you can only find slip condition without being able to add anything unlike the single flow model where you can add a tangential velocity to your wall. Regards
Dinesh Kalani
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Posted: 8 years ago 17 janv. 2017, 06:39 UTC−5
Hi Rodrigue,

Did you manage to find out a way to acheive this?
Hi Rodrigue, Did you manage to find out a way to acheive this?

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