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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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Wetted Wall BC

Posted 05.03.2012, 15:36 GMT-5 Fluid & Heat, Computational Fluid Dynamics (CFD) Version 4.2, Version 4.3a 2 Replies

Osameh Ghazian
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Hi,
What are the equations for wetted wall boundary condition in COMSOL ? I can not find it. I want to know what exactly happens when you set the contact angle. Is COMSOL using the Navier Slip Length ? Is this a local or apparent contact angle ?
2 Replies Last Post 18.05.2014, 17:46 GMT-4
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Hello Osameh Ghazian

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Monika Dash
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Posted: 1 decade ago 27.01.2014, 05:37 GMT-5
I have the same query. Someone please clarify.
I have the same query. Someone please clarify.
Roya Samanipour
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Posted: 1 decade ago 18.05.2014, 17:46 GMT-4
Hi,

I am trying to simulate droplet break up in microfluidic channel( water in oil), Two phase flow-level set. For wetted wall boundary condition I put pi/4 for 3D model, However for the 1D simulation it doesn't work. in this case if I put 3*pi/4, I get the result for making droplet. What is the correct contact angle for making droplet of water in oil in microfluidic channel?

Thanks
Hi, I am trying to simulate droplet break up in microfluidic channel( water in oil), Two phase flow-level set. For wetted wall boundary condition I put pi/4 for 3D model, However for the 1D simulation it doesn't work. in this case if I put 3*pi/4, I get the result for making droplet. What is the correct contact angle for making droplet of water in oil in microfluidic channel? Thanks

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