Interactions and breakup processes of 1.50-mm-diameter ethyl alcohol droplets and 5.14-mm-diameter water bubbles with planar shock waves were observed using double-exposure holographic interferometry. Experiments were conducted in a 60 mm × 150 mm cross-sectional shock tube for shock Mach number 1.56 in air. The Weber numbers of droplets and liquid bubbles were 5.6 × 103 and 2.9 × 103, respectively, while the corresonding Reynolds numbers were 4.2 × 10 and 1.5 × 105. It is shown that the resulting holographic interferogram can eliminate the effect of the mists produced by the breakup of the droplets and clearly show the structure of a disintegrating droplet and its wake. This observation was impossible by conventional optical flow visualization. It is demonstrated that the time variation of the diameter of a breaking droplet measured by conventional optical techniques has been overestimated by up to 35 percent.
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December 1990
Research Papers
Interaction of Liquid Droplets With Planar Shock Waves
T. Yoshida,
T. Yoshida
Department of Mechanical and Precision System, School of Science and Engineering, Teikyo University, Toyosatodai, Utsunomiya, 320, Japan
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K. Takayama
K. Takayama
Institute of Fluid Science, Tohoku University, Sendai, 980, Japan
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T. Yoshida
Department of Mechanical and Precision System, School of Science and Engineering, Teikyo University, Toyosatodai, Utsunomiya, 320, Japan
K. Takayama
Institute of Fluid Science, Tohoku University, Sendai, 980, Japan
J. Fluids Eng. Dec 1990, 112(4): 481-486 (6 pages)
Published Online: December 1, 1990
Article history
Received:
June 23, 1987
Online:
May 23, 2008
Citation
Yoshida, T., and Takayama, K. (December 1, 1990). "Interaction of Liquid Droplets With Planar Shock Waves." ASME. J. Fluids Eng. December 1990; 112(4): 481–486. https://doi.org/10.1115/1.2909431
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