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arXiv · 1105.4104

Birth and growth of cavitation bubbles within water under tension confined in a simple synthetic tree

Olivier Vincent·Philippe Marmottant·Pedro A. Quinto-Su·Claus-Dieter Ohl
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Abstract

Water under tension, as can be found in several systems including tree vessels, is metastable. Cavitation can spontaneously occur, nucleating a bubble. We investigate the dynamics of spon- taneous or triggered cavitation inside water filled microcavities of a hydrogel. Results show that a stable bubble is created in only a microsecond timescale, after transient oscillations. Then, a diffusion driven expansion leads to filling of the cavity. Analysis reveals that the nucleation of a bubble releases a tension of several tens of MPa, and a simple model captures the different time scales of the expansion process.

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Olivier Vincent, Philippe Marmottant, Pedro A. Quinto-Su, Claus-Dieter Ohl. 2011-05-20. Birth and growth of cavitation bubbles within water under tension confined in a simple synthetic tree. https://doi.org/10.1103/physrevlett.108.184502

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