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Help with a model combining laminar flow of a fluid and diffusion

Posted Jul 20, 2011, 2:49 p.m. EDT 0 Replies

Steven Goglia
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Hello everyone, I am currently working with a basic transport model. It is composed of two gases flowing through two micro-channels in a block of PDMS. Modeling diffusion is my goal, any advice?
I know the diffusion coeficients for N2 and O2 diffusing into the PDMS; however, I do not know the Dij for O2 diffusing into N2 as they both diffuse into the PDMS. In addition, the volumetric flow-rate of N2 is 10 to 20 times that of O2. I determined the flux from the equations in Perry's but I am not sure that the model is set up right. Thanks and have great day!

0 Replies Last Post Jul 20, 2011, 2:49 p.m. EDT
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Hello Steven Goglia

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