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Phase Initialization in Laminar Two-Phase Flow, Level Set Physics

Ershad Ahamed Chemmalasseri

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Hello Everyone,

I am working on a Laminar Two-Phase Flow, Level Set model. Previously I was using the Preset study "Transient with Initialization" which included a "Transient Initialization" study step. In the latest version of COMSOL, I noticed a new study step called " Phase Initialization". I tried to use it. I have run into some problems which I cannot figure out. I believe by understanding the working of "Phase Initialization", I could troubleshoot it. I looked at the equation it uses. I don't understand what is the "GI" term that is used and how it contributes to the level-set equation. Moreover there is the term "lref" (reference length) which has an arbitrary value. I am not able to understand how it works. I didn't get enough information from the the documentation.

I will be glad if I get some help regarding understanding this. Any additional literature that I could read is also welcome.

Regards

2 Replies Last Post 1 feb 2017, 06:01 GMT-5
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Hello Ershad Ahamed Chemmalasseri

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Posted: 7 years ago 1 feb 2017, 05:51 GMT-5
After 5 years ..

I'm also looking for a proper definitions of those initialization equations.
Maybe someone can help? Or did you find a solution?

Best regards
Twan
After 5 years .. I'm also looking for a proper definitions of those initialization equations. Maybe someone can help? Or did you find a solution? Best regards Twan

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Posted: 7 years ago 1 feb 2017, 06:01 GMT-5
Hi Twan,

i left the liquid world completely! Now I work with digital hologrphic microscope and I am an optics girl!

--
Marjan
Hi Twan, i left the liquid world completely! Now I work with digital hologrphic microscope and I am an optics girl! -- Marjan

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