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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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Weak term in 4.1

Posted Sep 6, 2011, 2:44 a.m. EDT Computational Fluid Dynamics (CFD) Version 4.1 2 Replies

JiYoung Park
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Dear, all

I am just following the model "www.comsol.com/community/exchange/118/"

which is modeling the free surface motion.

That is made in version 3.5 a

I found difficulty in the WEAK TAB

3.5 : Equation system >Physics>Boundary settings>Weak>Pressure>u, v

4.1 : Laminar flow>weak contribution(?)

There are no "u, v" tab in 4.1 weak contribution .

How can i apply 3.5 boundary condition to the same in 4.1 ?

Any comments will be appreciated.


2 Replies Last Post Sep 6, 2011, 6:36 a.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Sep 6, 2011, 4:37 a.m. EDT
Hi

in V4 you type in your equations, with the variables you need, to see them and to cmpare to 3.5 the easiest is to turn on the equation view (sub-nodes) and compare from there

The GUIs are different, but the underlying eqautions are the same to the variable naming convention that differ a bit ;)

--
Good luck
Ivar
Hi in V4 you type in your equations, with the variables you need, to see them and to cmpare to 3.5 the easiest is to turn on the equation view (sub-nodes) and compare from there The GUIs are different, but the underlying eqautions are the same to the variable naming convention that differ a bit ;) -- Good luck Ivar
JiYoung Park
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Posted: 1 decade ago Sep 6, 2011, 6:36 a.m. EDT
Great Thanks :)
Great Thanks :)

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