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Evaporating Drop Model

Posted 2016年2月25日 GMT-5 18:53 Version 4.4 1 Reply

Jeffrey Botimer
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Hi All,

I am trying to model a liquid drop on the end of a pipe. The pipe feeds into the drop, while evaporation takes mass away. I've build a 2D axisymmetric model of my pipe and drop, but I would like the size of my drop vary as it should be coupled to the temperature of the fluid. What is the best way to go about this? Can I set the radius of my drop to be temperature dependent when building my model?

Thanks!
1 Reply Last Post 2016年3月27日 GMT-4 17:56
COMSOL Moderator

Hello Jeffrey Botimer

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If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Mohammad Amin Kazemi
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Posted: 8 years ago 2016年3月27日 GMT-4 17:56
If the size of drop doesn't change significantly, use "Laminar Two-Phase Flow, Moving Mesh" coupled with "Heat transfer in fluids". This way you can impose a mass flux to the liquid-vapor interface. The volume of the drop shrinks according to the evaporation flux.
If the size of drop doesn't change significantly, use "Laminar Two-Phase Flow, Moving Mesh" coupled with "Heat transfer in fluids". This way you can impose a mass flux to the liquid-vapor interface. The volume of the drop shrinks according to the evaporation flux.

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