How to Apply Convection Boundary Condition for Concentrations in Transport of Diluted Species Model

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Hello,

I am trying to apply a diffusive boundary layer as my upper bounary condition in my reaction transport model. My upper boundary should include an external concentration and a gradient.

The closest approach for my boundary condition is in this heat transfer model: https://www.comsol.com/blogs/modeling-natural-and-forced-convection-in-comsol-multiphysics/

However I don't see a simillar node when dealing with concentrations in a transort of diluted species physics.

Any suggestions?

Many thanks, Yaniv


0 Replies Last Post Apr 22, 2019, 5:33 PM EDT
COMSOL Moderator

Hello Yaniv A

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