Figure 6.

Normalized force vs. Normalized height with Type 2 wetting. The force were normalized by the product of the surface tension, π and the top contact diameter. The circles are the simulation result from Type 1 (symmetric non-wetting, contact angle: 165°), the line is the prediction from Equation (6). The cross, square, and triangle marks are the simulation results for different wetting radius (4, 3, 2 mm) when the droplet’s volume was fixed at 50 µL. The inset shows the wetting region on the top plate. As the gap height betweent the plate decrease, the droplet sperad out to the non-wetting region.