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Converting an equation into weak form
Posted 25 juil. 2020, 20:45 UTC−4 Semiconductor Devices, Equation-Based Modeling 0 Replies
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The following equation describe the current densities of electrons and holes in a semiconductor.
(1)
(2)
(3)
(4)
(5)
The variables are J_n, J_p, n, p and E.
rho is charge density which is equal to 
.
G and R are function of generation and recombination.
I would like to change it into a weak form and use the pde interface . However, I do not know how to convert (3) and (5) into weak forms. Any suggestion to convert them? Thanks.
Hello Rui Xiao
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