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Evaporation boundary condition at liquid-vapor iterface |
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#1 |
Senior Member
vidyadhar
Join Date: Jul 2016
Posts: 138
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Hi,
I am using Fluent to simulate evaporation of liquid into air in a vertical channel. I am trying to follow the below sequence: 1. VOF simulation without enabling energy equation to get a steady meniscus shape of liquid-vapor interface. 2. Now, I want to extract the obtained profile of the meniscus and apply evaporation or convective boundary condition on the meniscus/interface surface (after enabling the energy equation) My queries: a) How to extract the profile of the meniscus of liquid-vapor interface? b) How to apply boundary condition on the meniscus which is fixed at a location? Thanks in advance! |
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#2 |
Senior Member
vidyadhar
Join Date: Jul 2016
Posts: 138
Rep Power: 10 ![]() |
I have done this way:
a) An iso-value of 0.5 for liquid-phase has resulted in meniscus shape b) Cells with iso-values for liquid-phase are marked using ''Mark/Adapt Cells'' option- this results in generation of a Register; With this Register face/cell zones are separated using "seperate faces/cells" - this results in formation of new cell zones, on which boundary conditions can be applied. Source: Fluent user manual |
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Tags |
evaporation-interface, multiphase, thin film flows, thin film simulations, vof method |
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