Cavitation erosion by laser-generated bubble near rigid boundary

liu tao; wang jiang’an; zong siguang; wang yuhong

Volume 23 Issue 02

Sep. 2012

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Article Navigation > High Power Laser and Particle Beams > 2011 > 23(02): 0

sun zhihong, xia yanwen, liu hua, et al. Contrast ratio measurement of single shot picosecond pulse using third-order noncollinear autocorrelation technique[J]. High Power Laser and Particle Beams, 2010, 22.

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liu tao, wang jiang’an, zong siguang, et al. Cavitation erosion by laser-generated bubble near rigid boundary[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

liu tao, wang jiang’an, zong siguang, et al. Cavitation erosion by laser-generated bubble near rigid boundary[J]. High Power Laser and Particle Beams, 2011, 23.

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Cavitation erosion by laser-generated bubble near rigid boundary

1.
College of Electronic Engineering,Naval University of Engineering,Wuhan 430033,China

Publish Date: 2011-01-25

Abstract

Abstract

The character and micro-process of cavitation erosion by laser-generated bubble near a rigid boundary in water have been studied with high speed camera system. The experimental results indicate that the main reasons for the boundarys erosion are the bubble collapse-generated shock wave and high speed liquid jet. When the dimensionless quantity, the ratio of the distance from the bubble to the boundary to the maximum radius of the bubble, is from 0.4 to 1.4, the first erosion to the boundary is from the shock wave and the second is from the high speed liquid jet because of the bubbles movement to the surface. When the dimensionless quantity is 1, the liquid jet is the decisive factor of erosion.
- laser-generated bubble,
- rigid boundary,
- shock wave,
- liquid jet

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