Simulating Microfluidic Flux with COMSOL: Choosing the Right Flow Regime

In summary, the conversation is about someone seeking help with simulating fluid flow in a microchanel using COMSOL multiphysics program. They are unsure about which type of flux regime to use and are seeking advice and literature on the subject.
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Hi everybody! first of all congratulations for the forum, you have very interesting things here! This is the first time that I write a question, and I would be soooo pleased if anyone could help me.

I am working with COMSOL multiphysics program, and I am trying to simulate the flux inside a microchanel that connects a microchamber and then exits through another microchanel. The problem itself is not complicated, but fluids is not my field and I am a bit lost with that... What I would like to know is which kind o flux regime I have to use (Stokes flow, laminar flow, non compresible flow, and so on...)
Thanks to eerybody in advance!
 
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  • #2
Hi,

I know this is not an answer, only a question but my grad thesis subject is microflowmeter design in Comsol Multiphysics, I am at the beginning now. Could you please share your experiences about incompressible flows in Comsol? Or could you say me any literature and sources?

Many thanks from now.
 

1. What is microfluidics and how does it relate to COMSOL?

Microfluidics is an interdisciplinary field that involves the manipulation and control of small volumes of fluids, typically on the microliter or nanoliter scale. COMSOL is a simulation software that can be used to model and analyze microfluidic systems, allowing for the prediction and optimization of fluid flow, mixing, and other important parameters.

2. What types of microfluidic devices can be simulated with COMSOL?

COMSOL can simulate a wide range of microfluidic devices, including microchannels, micromixers, lab-on-a-chip systems, microvalves, and more. It can also handle a variety of fluid types, such as Newtonian and non-Newtonian fluids, multiphase flows, and electrokinetic phenomena.

3. How does COMSOL handle the complexities of microfluidic systems?

COMSOL uses a finite element method to solve the governing equations for fluid dynamics, allowing for accurate predictions of flow behavior in complex geometries. It also has a comprehensive library of built-in physics and material properties, as well as customizable boundary conditions and meshing capabilities.

4. Can COMSOL be used for both design and analysis of microfluidic devices?

Yes, COMSOL is a multiphysics simulation software that can be used for both design and analysis of microfluidic devices. It allows for the exploration of different design options and the optimization of device performance, as well as the analysis of existing microfluidic systems to understand their behavior and identify potential improvements.

5. Are there any resources available for learning how to use COMSOL for microfluidics?

Yes, there are a variety of resources available for learning how to use COMSOL for microfluidics, including tutorials, webinars, and user guides on the COMSOL website. There are also online courses and workshops offered by COMSOL and other organizations that focus specifically on microfluidics with COMSOL. Additionally, there are online forums and user communities where users can ask questions and share tips and tricks for using COMSOL for microfluidic simulations.

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