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Difference between using kinetic theory and UDF for mixture mass diffusivity |
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July 9, 2020, 00:08
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Difference between using kinetic theory and UDF for mixture mass diffusivity
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New Member
Yije
Join Date: May 2020
Posts: 5
Rep Power: 5  |
Hi,
I have an udf code for the mass diffusivity of a mixture, which is based on the kinetic theory of Chapman. The horizontal flow goes through a channel, which has an attached porous zone on the top. There are four species in my model. When I used the kinetic theory option for mass diffusivity, there is a species concentration difference between the porous zone and channel because of the viscous resistance of the porous zone. However, when I used the udf code, there is no difference between the two zones. What would be the reason for this? Thank you, Yije https://drive.google.com/file/d/1har...ew?usp=sharing https://drive.google.com/file/d/1m7e...ew?usp=sharing |
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| kinetic theory, mass diffusivity, mixture, udf |
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