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-   -   Significance of Alpha and Solvers Application (http://www.cfd-online.com/Forums/openfoam/84445-significance-alpha-solvers-application.html)

jolync January 30, 2011 05:12

Significance of Alpha and Solvers Application
 
May I know what is the significance of alpha in the solver twoPhaseEulerFoam? Is air phase is defined when alpha is 0 whereas water phase is defined when alpha is 1 or vice versa? Is it the same as that defined in one of the tutorials, damBreak case from the interFoam solver, as featured in the user guide?

How does the case bubbleColumn in the solver bubbleFoam differ from the same case in twoPhaseEulerFoam solver?

Kind assistance is greatly appreciated. Thank you! :)

cheng1988sjtu January 30, 2011 16:53

you can see the definition of alpha in the transportProperties.

It's not constrained to air and water, you can define them to any other fluids.

soccol January 31, 2011 15:40

standart solver- air and wather system

alpha = 1 is air, or dispersed fase

but it's your choice the fluids.


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