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2 variables ODE

Posted 16 févr. 2014, 23:29 UTC−5 Version 4.3b 1 Reply

Chin Neng Leong
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Hi,

How should I implement this equation "dV/dt=C*dP/dt+P/R" in COMSOL?
V is the domain volume, C and R are constants. So I guess if there is a way how to get dV/dt in COMSOL, then problem will be solved. Physics=Moving Mesh. Hope can help me on this.
Thanks

CN
1 Reply Last Post 18 févr. 2014, 23:42 UTC−5
Chin Neng Leong
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Posted: 1 decade ago 18 févr. 2014, 23:42 UTC−5
Hi,

Or is there anyway to compute the time derivative of a global variable in COMSOL?
Thanks
Hi, Or is there anyway to compute the time derivative of a global variable in COMSOL? Thanks

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