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The gravity term in the two phase Darcy´s law (comsol v-5.3)

Posted Mar 12, 2018, 6:18 p.m. EDT Computational Fluid Dynamics (CFD), Porous Media Flow Version 5.3 1 Reply

Sebastian Sepulveda Cano
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Hi

I would like to know if for version 5.3 of comsol the term of gravity is already enabled. If is not, is there any way to solve this problem?

I was studying the tutorial of the applications gallery "Two-Phase Flow Experiment" and I am confused because hydrostatic pressure is applied with a minus sign, would someone explain to me why?

Thank you

1 Reply Last Post Mar 12, 2018, 11:49 p.m. EDT
Ismail Hussain
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Posted: 7 years ago Mar 12, 2018, 11:49 p.m. EDT

Hi Sebastian,

For manual gravity declaration, you can use volume force and specify F = mg. Hope this helps.

Regards, Ismail

Hi Sebastian, For manual gravity declaration, you can use volume force and specify F = mg. Hope this helps. Regards, Ismail

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