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Inertial Forces Representation in a Microfluidics Module

Posted 9 janv. 2016, 04:51 UTC−5 MEMS & Nanotechnology, Charged Particle Tracing, MEMS & Piezoelectric Devices, Microfluidics, Particle Tracing for Fluid Flow, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 5.0 1 Reply

Samir Jaber
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Hello,

I am working on a simulation of a microfluidic system that involves both the effect of dean flow and inertial (lift) forces on particles travelling inside a microchannel. To my knowledge, COMSOL is able to compute and display the dean effect on the particles flowing through the microfluidic channel. However, I could not find any display of inertial forces equations which restricted my simulation - separation of flowing particles from one another with respect to their size/volume could not be done. So, I reckoned that I should insert my own ODE's that represent the relative inertial force. However, I am having trouble understanding the parameter representation and the process of equation insertion into my component.

I would really appreciate an assistance on whether there is a representation of such effects (inertial force effects) built-in in COMSOL, or if not, on how I would be able to use my own equations in my analysis.

Thank you.
1 Reply Last Post 12 févr. 2016, 02:01 UTC−5
COMSOL Moderator

Hello Samir Jaber

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

Lee Kyunghun
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Posted: 8 years ago 12 févr. 2016, 02:01 UTC−5
I am facing same problem.
I asked this problem to Comsol company, then it just said 'you use the force term in particle tracking module'
But now I still don't know how to add the inertial lift force.
If you solve the problem, remaining the comment. Thanks.
I am facing same problem. I asked this problem to Comsol company, then it just said 'you use the force term in particle tracking module' But now I still don't know how to add the inertial lift force. If you solve the problem, remaining the comment. Thanks.

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