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-   -   Can Fluent solve free interface problem? (http://www.cfd-online.com/Forums/fluent/29978-can-fluent-solve-free-interface-problem.html)

xueying July 3, 2002 16:14

Can Fluent solve free interface problem?
 
Does anyone know if Fluent can solve free interface problem? And a more complicated interface is a thinless elastic membrane between two non-Newtonian fluids, can Fluent solve this complicated free interface? Thanks!

Lanre July 4, 2002 00:01

Re: Can Fluent solve free interface problem?
 
In your second question, does the membrane behave like the interface between a gas bubble and a liquid, or a liquid oil droplet in water, where the interfacial "skin" is held in place by the surface tension?

xueying July 6, 2002 13:42

Re: Can Fluent solve free interface problem?
 
No, the membrane behaves like elastic thinless shell (the surface tension is changing with deformation, not constant as bubble liquid surface), the position is changing and deforming according to the around flow.

Lanre July 18, 2002 15:29

Re: Can Fluent solve free interface problem?
 
You may be able to represent the interface by the surface tension. Gradient adaption of the interface would minimise artificial diffusion. The geo-reconstruct interface tracking scheme with the VOF model would be your best bet.


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