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Escape Radius/Velocities of Particle flowing in a past a T-junction

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I am trying to model an automated syringe(100um) sampling out 45um particles as they slowly flow through a channel about 1cm in diameter. I would like to know what is the effective area in which I can apply a negative flow rate or pressure to the syringe, a particle flowing past might be pulled up.

[Attached]: Model Diagram


1 Reply Last Post 4 gen 2016, 05:11 GMT-5
Sven Friedel COMSOL Employee

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Posted: 9 years ago 4 gen 2016, 05:11 GMT-5
Hi Moaraj,

I don't know how deep you are already in COMSOL, but to get started with what you are trying to achieve I would recommend the following tutorial:

ch.comsol.com/model/flow-past-a-cylinder-97

You may adjust the dimensions and flow rate to your needs. and add a second outlet. I would recommend starting in 2D first and when you have a good understanding about the type of your flow regime, upgrade to a full 3D model.

Best regards,
Sven
Hi Moaraj, I don't know how deep you are already in COMSOL, but to get started with what you are trying to achieve I would recommend the following tutorial: https://ch.comsol.com/model/flow-past-a-cylinder-97 You may adjust the dimensions and flow rate to your needs. and add a second outlet. I would recommend starting in 2D first and when you have a good understanding about the type of your flow regime, upgrade to a full 3D model. Best regards, Sven

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