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Diffusion problem
Posted 5 nov. 2012, 08:05 UTC−5 Chemical Reaction Engineering Version 4.1 1 Reply
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Hi friends
I want to model a fluid (Air) from one side and gases (3 species i.e xenon,radon,helium) to diffuse from the bottom.
the problem is when i select air for the domain for fluid flow and then want to select these gases from Material selection list then Air is overridden by new material. what should i do for selection of material for diffusion ?
is it not need to select material from the material list for diffusion ?
I want to model a fluid (Air) from one side and gases (3 species i.e xenon,radon,helium) to diffuse from the bottom.
the problem is when i select air for the domain for fluid flow and then want to select these gases from Material selection list then Air is overridden by new material. what should i do for selection of material for diffusion ?
is it not need to select material from the material list for diffusion ?
1 Reply Last Post 7 nov. 2012, 10:57 UTC−5
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Posted:
1 decade ago
Hi,
You have the gaseous mixture, so you need to define all the physical properties for multicomponent not for the individual component. Under material selection, Comsol has defined physical properties only for pure component not for the multicomponent.
good luck
Mayur
You have the gaseous mixture, so you need to define all the physical properties for multicomponent not for the individual component. Under material selection, Comsol has defined physical properties only for pure component not for the multicomponent.
good luck
Mayur