| Issue |
Europhys. Lett.
Volume 50, Number 2, April II 2000
|
|
|---|---|---|
| Page(s) | 175 - 181 | |
| Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i2000-00251-7 | |
| Published online | 01 September 2002 | |
Collapse of cavitation bubbles in blood
Department of Hydraulics, University Polytechnica - 77206 Bucharest, Romania
Received:
6
April
1999
Accepted:
31
January
2000
The behaviour of a single bubble in blood and in water is studied by using a
non-Newtonian model of spherical bubble dynamics. This model considers the
compressibility of the liquid surrounding the bubble, the shear-thinning characteristic
of liquid viscosity, liquid density and surface tension. It was found that, for values of
the maximum bubble radius larger than 
, the collapse of a bubble in a
constant pressure field in blood is more violent than in water. It suggests that the
amount of collateral damage of the biological tissue induced by bubble collapse during
high-speed rotational angioplasty and laser-induced angioplasty can be underestimated by
experiments in vitro using water as ambient liquid.
PACS: 47.55.Bx – Cavitation / 47.50.+d – Non-Newtonian fluid flows
© EDP Sciences, 2000
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