[arsalan.dryi]

Hi Foamers,

I'm doing a 3D simulation of two and three bubble rising using a modified interFoam solver and I need to bubbles centre position, velocity and surface area.

For a single bubble rising I used swak4Foam expressions for example for bubble centre position in Y as follows :

    bubbleCentreY
    {
        type swakExpression;
        valueType internalField;
        verbose true;
    variables (
    "Vol= sum (alpha1 < 0.5 ? vol() : 0);"
    "VolY= sum (alpha1 < 0.5 ? pos().y*vol() : 0);"    
    );        
    expression "VolY/Vol";
        accumulations (
        min        
        );

     
    }

Is there a way to compute two or three bubble properties in this manner?

Thanks in advance,
Best Regards,
Arsalan.

[arsalan.dryi]

Does anybody have an idea?

Any help and comment will be greatly appreciated.

Regards,
Arsalan.

[arsalan.dryi]

I still didn't solve this problem, does anyone have an idea?!

Thanks in advance,
Regards.