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Help with two group model

Posted Jan 26, 2014, 6:36 p.m. EST Studies & Solvers Version 4.4 0 Replies

Lei Tu
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I am trying to make the two-energy-group model by using the "Coefficient Form PDE" module for both the fast group and thermal group. I am having trouble to find the correct solution for the two group neutron fluxes, because the time-dependent study gives results of almost zero, i.e., the trivial solution, the eigenvalue and/or stationary study gives more reasonable solutions with the same initial and boundary conditions. Could anyone please give me some guide and/or look at the attached file for pointing out my mistakes?
Thanks.

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0 Replies Last Post Jan 26, 2014, 6:36 p.m. EST
COMSOL Moderator

Hello Lei Tu

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