Problem with surface tension -- CFD Online Discussion Forums

March 7, 2014, 08:53

Problem with surface tension

luc.gig

New Member

Lucas Giger

Join Date: Feb 2014

Posts: 3

Rep Power: 12

Hi everyone,

I have a problem simulating a rising air bubble in liquid water in a closed cavity 2D.
I tryed different models (VOF, Euler,..) but everytime I get the same problem:

As soon as I include the surface tension the bubble seems to explode..(see in picture)

Bubble Radius is very small 0.4 mm and surface tension is 0.073 n/m

Does anyone know this problem? What could be the reason?

Any help would be appreciated.

Best, Lucas

Attached Images

	initial.JPG (11.5 KB, 7 views)
	surfacetension.JPG (11.7 KB, 11 views)

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