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Journal of Applied Fluid Mechanics، جلد ۹، شماره ۲، صفحات ۷۵۷-۷۶۵
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عنوان انگلیسی Experimental Study of the Phenomenon of Droplet Impact upon a Liquid Surface
چکیده انگلیسی مقاله This paper experimentally studied the dynamic behavior of a droplet impacting upon a liquid film, by investigating the effects of the droplet velocity and thickness of the liquid film on the impact behavior of the droplet. The formation of the crown, central jet, and disintegrating droplet from the central jet were visualized by time-delay photography. The time evolutions of the diameter and height of the crown and the height of the central jet were obtained, and the size of the disintegrating droplet from the central jet was measured. The crown diameter and the central jet height were mostly affected by the droplet velocity and the thickness of the liquid film, respectively, while the crown height was influenced by both the droplet velocity and the thickness of the liquid film. The diameter and height of the crown were higher for the case of the faster impacting droplet and thinner liquid film. On the other hand, the height of the central jet was higher for the case of the faster impacting droplet and thicker liquid film. The size of the disintegrating droplet from the central jet heavily depends on the velocity of the impacting droplet. Namely, a larger droplet is produced by a faster impacting droplet.
کلیدواژه‌های انگلیسی مقاله Impacting droplet, Liquid Film, Splashing
نویسندگان مقاله B. Kang |
School of Mechanical Engineering, Chonnam National Universiti, 77 Yongbong-ro, Buk-gu, Gwangju, 500-757, Korea

نشانی اینترنتی https://www.jafmonline.net/article_1657_32cec41d5f08b3c487d80a8ae7468d0f.pdf
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