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Concentric Pipes flow

Posted Jun 9, 2017, 9:23 a.m. EDT 2 Replies

Erhamah Alsuwaidi
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I am trying to simulate fluid flow through two concentric pipes. My model runs properly for low velocities (0.0005 M/S) but not higher once (0.5m/s). Attached are some pictures of the model. Please assist me.

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2 Replies Last Post Jun 11, 2017, 12:42 p.m. EDT
Mohammad Amin Kazemi
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Posted: 7 years ago Jun 10, 2017, 9:06 p.m. EDT
Updated: 7 years ago Jun 10, 2017, 9:06 p.m. EDT
Erhamah,
Have you tried smoothed increase of inlet velocity?
I mean solve it for 0.0005 m/s, use the solution as an initial condition for let's say 0.001 m/s and so forth.
You may also use a parametric sweep study.
Amin,
Erhamah, Have you tried smoothed increase of inlet velocity? I mean solve it for 0.0005 m/s, use the solution as an initial condition for let's say 0.001 m/s and so forth. You may also use a parametric sweep study. Amin,
Erhamah Alsuwaidi
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Posted: 7 years ago Jun 11, 2017, 12:42 p.m. EDT
Thanks for your reply!

I will try your approach and will let you know. Thanks again!
Thanks for your reply! I will try your approach and will let you know. Thanks again!

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