Damage potential of single‐bubble collapse in shockwave lithotripsy

2008 ◽  
Vol 123 (5) ◽  
pp. 3368-3368
Author(s):  
Eric Johnsen ◽  
Tim Colonius
2015 ◽  
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B Li ◽  
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Author(s):  
张婷婷 Zhang Tingting ◽  
曹国翔 Cao Guoxiang ◽  
王彦佼 Wang Yanjiao ◽  
夏婷婷 Xia Tingting ◽  
蔡强 Cai qiang ◽  
...  

2015 ◽  
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Mingli Jiao ◽  
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...  

2011 ◽  
Vol 129 (4) ◽  
pp. 2619-2619 ◽  
Author(s):  
Thomas Matula ◽  
Brian MacConnaghy ◽  
Lawrence Crum ◽  
Felipe Gaitan

1989 ◽  
Vol 111 (3) ◽  
pp. 353-356
Author(s):  
E. Nienaltowska

A photoelastic technique using two laser beams and high acquisition rate (20 MHz) has been used to investigate the dynamics of a single bubble in a fluid at rest. The bubbles are spark-generated in the vicinity of a photoelastic wall. The influence of liquid pressure, proximity of the wall and the bubble life-time on the collapse intensity is examined. The results obtained are compared qualitatively with the measurements of pressure obtained by Shima and Tomita for the liquid at atmospheric pressure.


Author(s):  
Eric Johnsen ◽  
Tim Colonius ◽  
Wayne Kreider ◽  
Michael R. Bailey

In order to better understand the contribution of bubble collapse to stone comminution in shockwave lithotripsy, the shock-induced and Rayleigh collapse of a spherical air bubble is investigated using numerical simulations, and the free-field collapse of a cavitation bubble is studied experimentally. In shock-induced collapse near a wall, it is found that the presence of the bubble greatly amplifies the pressure recorded at the stone surface; the functional dependence of the wall pressure on the initial standoff distance and the amplitude are presented. In Rayleigh collapse near a solid surface, the proximity of the wall retards the flow and leads to a more prominent jet. Experiments show that re-entrant jets form in the collapse of cavitation bubbles excited by lithotripter shockwaves in a fashion comparable to previous studies of collapse near a solid surface.


1988 ◽  
Vol 110 (2) ◽  
pp. 194-199 ◽  
Author(s):  
A. Shima ◽  
Y. Tomita ◽  
T. Ohno

In relation to the temperature effect in cavitation damage, the collapse of a single bubble in water over a wide range of temperatures was experimentally studied. A spark-induced bubble was observed by using a high speed camera and the impulsive pressure caused by the bubble collapse was measured by means of a pressure transducer. As water temperature increases, the motion of a bubble tends to weaken owing to the increase in saturated vapor pressure of water, and the surface configuration of a bubble becomes highly irregular because of thermal instability. The impulsive pressure depends not only on the bubble size and its distance from a solid wall but also on the water temperature. When the water temperature approaches the boiling point of water, the impulsive pressure abruptly decreases with increasing water temperature. The evidence obtained seems to be associated with the known temperature effect on cavitation damage at high water temperature.


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