ABSTRACT
If the contact angle of water on the orifice surface is less than p/2, a developing bubble does not expand beyond the orifice, as discussed previously. In this case, the tilting of the orifice surface does not change the basic bubble formation, and a bubble develops and detaches from the orifice. Figure 27.9 depicts sequentially captured bubble formation from an inclined surface with a tilt angle of 30 degrees. The effective cross-sectional area decreases with the tilt angle because a bubble develops along the line of the buoyancy, and the drifting force causes premature detachment of a developing bubble. Consequently, an inclined surface, in this domain, creates the bubble, which is smaller than the bubble emerging from a horizontal surface under otherwise identical conditions. The tilting angle has little
