Direction of the microjet produced by the collapse of a cavitation bubble located in a corner of a wall and a free surface
Akihito Kiyama, Takaaki Shimazaki, José Manuel Gordillo, Yoshiyuki Tagawa
Abstract
A cavitation bubble is harmful to machines as it issues a fast microjet when it collapses near the boundary. This work focusses on a bubble located in a corner of a wall and a free surface, where both boundaries alter the jet direction. We present a simplified model to describe the jet direction as a function of the bubble location, which agrees with that measured in high-speed observation. This may give some insight for avoiding cavitation-induced damage in practical designs.
Topics & Concepts
BubbleCavitationFree surfaceMechanicsJet (fluid)Work (physics)Surface (topology)SupercavitationMaterials scienceFunction (biology)GeologyClassical mechanicsUltrasound and Cavitation PhenomenaCavitation Phenomena in PumpsUltrasound and Hyperthermia Applications