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Impose a limitation for solving an equation

Posted 13 mai 2016, 12:37 UTC−4 Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers Version 5.1 0 Replies

Arezoo Materials Science
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Hi,
I'm using general PDE in COMSOL. I want to solve the equation by this condition:
The calculated main variable in each time step can not decrease, in other words if A is the main variable, then dA/dt>0 (t is time) .

How can I impose this condition?

Thanks,
Arezoo

0 Replies Last Post 13 mai 2016, 12:37 UTC−4
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