# value uniform 1/0 meaning for contact angle boundary condition?

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 May 20, 2015, 12:31 value uniform 1/0 meaning for contact angle boundary condition? #1 Senior Member   Saideep Join Date: Apr 2015 Location: INDIA Posts: 203 Rep Power: 11 Hi Foamers; I have a rather basic question. I am dealing with two phase flows using the interFOAM solver. I try to implement the boundary condition for the contact angle at the top and bottom layers of my rectangular domain. I use the following boundary condition: top { type constantAlphaContactAngle; limit gradient; theta0 0; value uniform 1; } I am curious to know what does the value uniform 1 mean in this case? I even changed the value to uniform 0 and I have the same set of results. I would be happy if anyone could clarify this. Thanks.

 May 20, 2015, 13:39 value is the fixed angle of contact to the solid surface. #2 Senior Member   Saideep Join Date: Apr 2015 Location: INDIA Posts: 203 Rep Power: 11 Sorry guys; it was so easy!! The value over there is for the contact angle. 0 - 180 are valid. 0 is not considering any contact angle effects and any value of alpha depends on the condition for your run. Could be useful for any others. Sorry to bother you!!

 March 6, 2019, 05:57 #3 New Member   Daniele Catucci Join Date: Mar 2019 Posts: 5 Rep Power: 7 Dear Saideep If I understand well, putting theta0=45 and " value uniform 0" I will have a contact angle of 0. Instead, by setting "value uniform 1" I will have a contact angle of 45. That right?

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