Set the boundary conditions using the same procedure as described before.
以前と同じように境界条件を設定します。
This should correspond to the description in 2.27 although there is an important issue relating to the walls: the interFoam solver includes modelling of surface tension at the contact point between the interface and wall surface.
If the user selects the wallContactAngle boundary type in FoamX, they will notice that the gamma field is assigned a gammaContactAngle boundary condition.
The user must then specify the following: a static contact angle, theta0 leading and trailing edge dynamic contact angles, thetaA and thetaR respectively; and a velocity scaling function for dynamic contact angle, uTheta.
The top boundary is free to the atmosphere and so is given an atmosphere boundary type; the defaultFaces representing the front and back planes of the 2D problem, is, as usual, an empty type.