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Moving solid particles in a laminar flow

Posted 02.12.2015, 09:03 GMT-5 Fluid & Heat, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 5.2 3 Replies

Seyedehyasamin Salamat
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Hello,

I want to simulate moving solid particles in a laminar flow with some obstacles (vertical columns) in their way. What I want to see is that how they get trapped in the gaps between the columns (when the diameter of the spheres is larger than the gaps). I have tried the Particle Tracing module, but it doesn't consider the particles as real rigid bodies. I mean even if I set the diameter of the particles higher than the gap space, the particles still pass through. The only thing that changing the diameter would affect is the velocity of the particles. I was wondering if there is any way that I can make these particles as real rigid spheres, so when they are larger than the space between the columns, they will not pass and get trapped there.

Thank you so much,
Yasamin
3 Replies Last Post 02.03.2016, 01:41 GMT-5
COMSOL Moderator

Hello Seyedehyasamin Salamat

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Abdulgani Alsaç
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Posted: 9 years ago 01.03.2016, 10:35 GMT-5
hi Seyedehyasamin,
i have same problem, did you find a solution to your problem?
if you find a solution for your problem, can you help me about it?

thanks
Abdulgani
hi Seyedehyasamin, i have same problem, did you find a solution to your problem? if you find a solution for your problem, can you help me about it? thanks Abdulgani
Seyedehyasamin Salamat
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Posted: 9 years ago 01.03.2016, 15:31 GMT-5
Hi Abdulgani,

Actually we weren't able to do what we wanted to do with Particle Tracing. This module of COMSOL doesn't consider particles as rigid spheres, and changing the diameter, just changes the velocity of the particles in the flow. For doing that, I think you need to use the two phase flow or fluid structure interaction.

Yasamin
Hi Abdulgani, Actually we weren't able to do what we wanted to do with Particle Tracing. This module of COMSOL doesn't consider particles as rigid spheres, and changing the diameter, just changes the velocity of the particles in the flow. For doing that, I think you need to use the two phase flow or fluid structure interaction. Yasamin
Abdulgani Alsaç
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Posted: 9 years ago 02.03.2016, 01:41 GMT-5
thanks for sharing your experience Yasemin.
thank you so much.

Abdulgani
thanks for sharing your experience Yasemin. thank you so much. Abdulgani

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