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How to compute diffusive flux from transport of diluted species model

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Hi,
I have 2D axisymmetric model with a void embeded in the model. The initial gas concentration of the model is 35 mol/m^3, with zero gas concentration outer boundaries and zero gas concentration in the void. During time dependent calculation, how can I able to get gas concentration inside the void or diffusive flux on the boundaries of the void?
Thank you,
Sompong

0 Replies Last Post Sep 21, 2012, 4:12 p.m. EDT
COMSOL Moderator

Hello Sompong Prachumchon

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