Two-phase flow, moving mesh

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Hi all,

I have a problem when I define the outlet condition for both phases.

I am running a two phase simulation using the moving mesh method. As you can see from the picture attached, there is a liquid phase and a gas phase separated by a vertical fluid-fluid interface. The upper boundary condition is set as outlet. When I define the liquid-liquid interface, the software automatically set the point in the red circle as part of wall-fluid interface and hence it assosiate to it a contact angle. In reality that point should belong to the outlet and there should not be no contact angle. How can I fix this problem?

Thank you in advance, Fabio



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