Time intervals of the cavitation bubble's collapse near a free surface

Satoshi Mohri; Ryoji Doihara; Koji Takahashi; Kunihito Nagayama

doi:10.1299/kikaib.64.2897

Time intervals of the cavitation bubble's collapse near a free surface

Satoshi Mohri, Ryoji Doihara, Koji Takahashi, Kunihito Nagayama

Thermophysics and Fluid Mechanics

Research output: Contribution to journal › Article › peer-review

Abstract

Cavitation bubbles induced by pulsed laser near a free surface have been investigated experimentally and numerically. The successive pressure waves from them and their vertical migrations and volume change were measured by using hydrophone and high-speed streak camera. The characteristics of the first and second rebound times due to the distance from the free surface enable us to guess the mechanisms of bubble collapse with microjet. Because our new scheme by CIP method is successfully applicable for such two-phase flow, the comparison between experimental and numerical results is also very useful to understand the fundamental factor of the complicated phenomena of cavitation bubbles.

Original language	English
Pages (from-to)	2897-2901
Number of pages	5
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	64
Issue number	625
DOIs	https://doi.org/10.1299/kikaib.64.2897
Publication status	Published - 1998

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering

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AU - Takahashi, Koji

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Y1 - 1998

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AB - Cavitation bubbles induced by pulsed laser near a free surface have been investigated experimentally and numerically. The successive pressure waves from them and their vertical migrations and volume change were measured by using hydrophone and high-speed streak camera. The characteristics of the first and second rebound times due to the distance from the free surface enable us to guess the mechanisms of bubble collapse with microjet. Because our new scheme by CIP method is successfully applicable for such two-phase flow, the comparison between experimental and numerical results is also very useful to understand the fundamental factor of the complicated phenomena of cavitation bubbles.

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Time intervals of the cavitation bubble's collapse near a free surface

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