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Evaporating droplet by level-set (How to shrink the drop due o evaporation?)
Posted 29 nov 2017, 18:23 GMT-5 Interfacing, MEMS & Piezoelectric Devices, Computational Fluid Dynamics (CFD) 1 Reply
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Hi, I would lilke to simulate an evaporating sessile droplet. I tried the Level-set module in COMSOL but it seems it does not work! At the water-gas interface of a evaporating droplet, the flow is not divergence free. This feature shrinks the droplet during evaporation. But in the COMSOL interface, I did not find a place to add the velocity jump term to the Continuity Equation which is already del.u = 0 (divergence free). I know that I may be able to do this project by Moving Mesh module, but I still would like to understand whether it is possible to add the velocity jump term to the continuity equation (i.e., del.u = X). Any help is appreciated. Thanks Mohsen
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Could you upload your model & boundary file?
Should check your boundary condtion and operating condition! (or geometry)