# Implemening Slip bc and Dynamic contact angle in interFoam

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 November 11, 2008, 09:51 Hello, I would like to know #1 Member   a a saha Join Date: Mar 2009 Posts: 67 Rep Power: 8 Hello, I would like to know if, it is possible of speficying the following in interFoam solver: (1) a slip b.c on the walls (b*d(u)/d(y) = u_0, y = 0; b=slip length, u_o=slip velocity at the wall) (2) Dynamic contact angle (|tan(theta)| = a*Ca^(1/3) - b*(lambda)^0.04*Ca^0.293; a = 7.48, b = 3.28, lambda = 10E-8, Ca = Capillary number) I would request the interFoam users to share there thoughts on how to implement these in the exisiting interFoam solver (OF1.5). Thanks, a a saha.

 November 11, 2008, 10:04 Hi A A Saha regarding the ( #2 Senior Member   Join Date: Mar 2009 Posts: 248 Rep Power: 9 Hi A A Saha regarding the (2): Take a look into the /home/openfoam/OpenFOAM/OpenFOAM-1.5/src/transportModels/interfaceProperties/gam maContactAngle/ There lives the hierarchy for the existing models of contactAngle . Take a look in particular, the dynamic contact angle calcs. Go through the code and see whether the framework will suit your requirements. Kind Regards Jaswi

July 29, 2010, 15:49
#3
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Join Date: Nov 2009
Posts: 48
Rep Power: 7
Hi saha,

Did you implement your dynamic contact angle in interFoam. I would be so grateful if you share your experience with me.

Thanks,
MEhran

Quote:
 Originally Posted by asaha Hello, I would like to know if, it is possible of speficying the following in interFoam solver: (1) a slip b.c on the walls (b*d(u)/d(y) = u_0, y = 0; b=slip length, u_o=slip velocity at the wall) (2) Dynamic contact angle (|tan(theta)| = a*Ca^(1/3) - b*(lambda)^0.04*Ca^0.293; a = 7.48, b = 3.28, lambda = 10E-8, Ca = Capillary number) I would request the interFoam users to share there thoughts on how to implement these in the exisiting interFoam solver (OF1.5). Thanks, a a saha.

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