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Completely wetted or non-wetted wall with phase field

Posted 13 giu 2019, 09:11 GMT-4 Computational Fluid Dynamics (CFD), Heat Transfer, Microfluidics Version 5.4 1 Reply

Joseph
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Hey !

I've been trying to make a simulation of completely wetted or non-wetted walls (theta_w=0 or theta_w=pi) with phase field but it's always diverging. Have you ever tried and/or manage to do so ? How would you implement that plz ?

Thx in advance Joseph

1 Reply Last Post 9 lug 2019, 14:42 GMT-4
Ram Krishna Fluid and Thermal Science, Transport Phenomena
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Posted: 5 years ago 9 lug 2019, 14:42 GMT-4
Updated: 5 years ago 9 lug 2019, 14:41 GMT-4

I have tried complete wetting and other contact angles in Phase-field simulations. It works for me in most of the cases. The divergence is possibly due to inconsistent boundary conditions and defining phase-field features such as interface thickness and phase field tuning parameters. Go through this blog for more information on phase field modeling.

https://www.comsol.co.in/support/knowledgebase/1239/

I have tried complete wetting and other contact angles in Phase-field simulations. It works for me in most of the cases. The divergence is possibly due to inconsistent boundary conditions and defining phase-field features such as interface thickness and phase field tuning parameters. Go through this blog for more information on phase field modeling. https://www.comsol.co.in/support/knowledgebase/1239/

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