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diffusion source term and 3D modeling

Posted Aug 27, 2011, 11:04 a.m. EDT Version 4.2 0 Replies

Yang lina
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Hi,

I have two questions to be answered.
Firstly, in equation of diluted diffusion model, we can see the source term R which is related to the concentration which is a variable depending on position and time. But why i can not set up the R? What should i do?
Secondly, when i want to set a geometric model which is a 3D(1000*1000*1000 cubes), it is a large problem that i set up the domains and boundary. Any suggestion? I will appreciate it.


Thank you very much!
0 Replies Last Post Aug 27, 2011, 11:04 a.m. EDT
COMSOL Moderator

Hello Yang lina

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