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 sebastian_vogl March 18, 2009 13:03

Theoretical background of formula for dynamic contact angle in interfoam

Hello everyone,

I have got a question related to the calculation of the dynamic contact angle in the interFOAM solver.

InterFOAM calculates the dynamic contact angle (theta) via the following formula:

theta = theta0 + (thetaA - thetaR) * tanh(uwall/uTheta)

theta0 = static contact angle
thetaA = Limiting advancing contact angle
thetaR = Limiting receeding contact angle
uTheta = dynamic contact angle velocity scale

Could you please tell me where this formula comes from?
Is there any book/paper in which this formula was derived?
How is uTheta determined?

Actually they are three questions and not only one.;)
I would be very grateful, if you could help me on my problem.

Sincerely,
Sebastian Vogl

 sandy April 11, 2009 07:57

Hi, maybe you can find it in OnnoUbbink 's PhD thesis from the website: http://powerlab.fsb.hr/ped/kturbo/OpenFOAM/docs/

 sebastian_vogl April 14, 2009 02:47

Hello Sandy,
Thank you very much for your help. I will have a close look at this thesis.

Best regards,
Sebastian

 Hectux June 22, 2009 12:25