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Designing a Micropump with a Deformed Membrane

Posted May 16, 2014, 9:35 a.m. EDT MEMS & Nanotechnology, MEMS & Piezoelectric Devices Version 4.4 5 Replies

Marwan Nafea
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What is/are the best physic(s) to be used when designing a PDMS micropump that has a deformed membrane?
What is the best of these choices for this kind of design:

1. Solid Mechanics + Laminar Flow
2. Solid Mechanics + Laminar Flow + Moving Mesh
3. Fluid Structure Interaction

or any other choices, if possible ...
May you explain the reason behind your choice?

Best regards,
Marwan
5 Replies Last Post Mar 16, 2015, 12:08 p.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago May 20, 2014, 2:06 a.m. EDT
Hi Marwan

I would go for it as:

1) FSI
2) moving mesh + structural + laminar (if truly laminar check your Reynolds numbers)

as you have solid large motions you need the moving mesh for the fluidics, but as Solid has its own type of moving mesh, you should respect the order a) moving mesh physics b) then the two others (and I would start with Solid)
But "FSI" for me is "just" the combination of the 3 physics, made read for you by COMSOL, so why not use that ;)

--
Good luck
Ivar
Hi Marwan I would go for it as: 1) FSI 2) moving mesh + structural + laminar (if truly laminar check your Reynolds numbers) as you have solid large motions you need the moving mesh for the fluidics, but as Solid has its own type of moving mesh, you should respect the order a) moving mesh physics b) then the two others (and I would start with Solid) But "FSI" for me is "just" the combination of the 3 physics, made read for you by COMSOL, so why not use that ;) -- Good luck Ivar
Marwan Nafea
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Posted: 1 decade ago May 20, 2014, 12:00 p.m. EDT
Thank you so much Mr. Ivar Kjelberg for your kind help.

Best regards,
Marwan
Thank you so much Mr. Ivar Kjelberg for your kind help. Best regards, Marwan
Om Prakash Yadav
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Posted: 10 years ago Mar 12, 2015, 11:07 p.m. EDT
sir i am also working on mems based micropump...............i have tried to simulate it but failed to do so.........please help me ....i want to know how you have setup a physics to deform the membrane?? sir i have attached a paper please help me...........
sir i am also working on mems based micropump...............i have tried to simulate it but failed to do so.........please help me ....i want to know how you have setup a physics to deform the membrane?? sir i have attached a paper please help me...........
Marwan Nafea
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Posted: 10 years ago Mar 13, 2015, 12:38 a.m. EDT
Hi. I can't find your attachment.
Hi. I can't find your attachment.
Om Prakash Yadav
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Posted: 10 years ago Mar 16, 2015, 12:08 p.m. EDT
I HAVE ATTACHED THE PAPER. SIR I AM NOT ABLE TO SIMULATE THE MICROPUMP............PLEASE HELP ME
I HAVE ATTACHED THE PAPER. SIR I AM NOT ABLE TO SIMULATE THE MICROPUMP............PLEASE HELP ME

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