Force Balance Model for Bubble Rise, Impact, and Bounce from Solid Surfaces
Rogerio Manica, Evert Klaseboer, Derek YC Chan
LANGMUIR | AMER CHEMICAL SOC | Published : 2015
A force balance model for the rise and impact of air bubbles in a liquid against rigid horizontal surfaces that takes into account effects of buoyancy and hydrodynamic drag forces, bubble deformation, inertia of the fluid via an added mass force, and a film force between the bubble and the rigid surface is proposed. Numerical solution of the governing equations for the position and velocity of the center of mass of the bubbles is compared against experimental data taken with ultraclean water. The boundary condition at the air-water interface is taken to be stress free, which is consistent for bubbles in clean water systems. Features that are compared include bubble terminal velocity, bubbles..View full abstract
This work was supported in part by an Australian Research Council Discovery Project Grant to D.Y.C.C.