Dynamic rupture of water in microfluidics

K. Ando, A. Q. Liu, C. D. Ohl

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

An experimental technique is developed to measure the rupture strength of water in a microfluidic channel. A transparent channel is filled with distilled water, partially leaving an air-water interface. An infrared laser pulse is focused within the liquid to create a spherical shock wave near the interface. The shock reflects, due to acoustic impedance mismatch, as a tension wave. The liquid becomes stretched and at the critical tension ruptures with the nucleation of vapor bubbles. The bubble nucleation is captured using a CCD camera with an optical delay and short exposure times. Reproducible observations of the bubble nucleation are obtained, confirming the realization of homogeneous nucleation. Euler flow simulation estimates a tensile stress threshold of -60 MPa, which is the largest reported tension among dynamic measurements.

本文言語English
ホスト出版物のタイトル15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
ページ221-223
ページ数3
出版ステータスPublished - 2011 12 1
外部発表はい
イベント15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011 - Seattle, WA, United States
継続期間: 2011 10 22011 10 6

出版物シリーズ

名前15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
1

Other

Other15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
国/地域United States
CitySeattle, WA
Period11/10/211/10/6

ASJC Scopus subject areas

  • 制御およびシステム工学

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