Dynamic rupture of water in microfluidics

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011
Pages221-223
Number of pages3
Volume1
Publication statusPublished - 2011
Externally publishedYes
Event15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011 - Seattle, WA, United States
Duration: 2011 Oct 22011 Oct 6

Other

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

Fingerprint

Microfluidics
Nucleation
Water
Acoustic impedance
Infrared lasers
Flow simulation
Liquids
CCD cameras
Tensile stress
Shock waves
Laser pulses
Vapors
Air

Keywords

  • Euler flow simulation
  • Homogeneous bubble nucleation
  • Shock-interface interaction

ASJC Scopus subject areas

  • Control and Systems Engineering

Cite this

Ando, K., Liu, A. Q., & Ohl, C. D. (2011). Dynamic rupture of water in microfluidics. In 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011 (Vol. 1, pp. 221-223)

Dynamic rupture of water in microfluidics. / Ando, Keita; Liu, A. Q.; Ohl, C. D.

15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011. Vol. 1 2011. p. 221-223.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ando, K, Liu, AQ & Ohl, CD 2011, Dynamic rupture of water in microfluidics. in 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011. vol. 1, pp. 221-223, 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011, Seattle, WA, United States, 11/10/2.
Ando K, Liu AQ, Ohl CD. Dynamic rupture of water in microfluidics. In 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011. Vol. 1. 2011. p. 221-223
Ando, Keita ; Liu, A. Q. ; Ohl, C. D. / Dynamic rupture of water in microfluidics. 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, MicroTAS 2011. Vol. 1 2011. pp. 221-223
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