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Problem for PDE creation

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I'm using the The General Form PDE Interfaces module to create PDE for phase field equation solving. This module shows that I can input a Γ as an divergence item (▽· Γ ) and this causes a question: when I input M▽c as Γ ( ▽· (M▽c) ), will Comsol process this as M▽· (▽c) or ▽M·▽c+M▽· (▽c)? If it is the first, should I add a ▽M·▽c item as the source item?


1 Reply Last Post 2022年8月25日 GMT-4 09:12
Jeff Hiller COMSOL Employee

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Posted: 2 years ago 2022年8月25日 GMT-4 09:12

COMSOL computes the divergence correctly; you do not need to add any term.

Jeff

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Jeff Hiller
COMSOL computes the divergence correctly; you do not need to add any term. Jeff

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