title: Formulation of multibubble cavitation.
abstract: With the appropriate approximation, we have formulated the equation of multibubble motion for two cases: a filament of bubbles and a small spherical cluster of bubbles. Our results have yielded a collective mode of bubble motion in which individual bubbles of similar size expand and compress almost simultaneously. Each vibrating bubble radiates sound waves and originates the radiation sound pressure, which affects the motion of the other bubbles. The numerical simulation has revealed that this interaction suppresses single-bubble motion and tends to homogeneously spread the energy of the acoustic standing wave to each individual bubble.
authors.affiliation: Department of Physics, Tsinghua University, Beijing 100084, China.
authors.forename: Yu
authors.initials: Y
authors.lastname: An