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Capillary pressure
Posted 2020年4月13日 GMT-4 07:22 Fluid & Heat, Computational Fluid Dynamics (CFD), Microfluidics Version 5.3a 0 Replies
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Hello!
I'm trying to simulate sessile droplet deformation with taking into account capillary pressure. To calculate capillary pressure I use Weak Form Boundary PDE which defines the curvature radius of droplet surface. Boundary PDE contains normal vectors nr and nz (cylindrical system). In this way I can estimate capillary pressure on the surface, but can't to take it into account since, obviously, nr and nz can't be defined in the volume.
The question is: How to take into account the capillary pressure inside the drop volume?
P.s. I can't just add Boundary Force for selected surface, since I use "Two Phase Fluid Flow, Moving Mash" module for both drop volume and surrounding air. Maybe I can apply Divergence Theorem somehow?..
Hello олег чирс
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