کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7052698 | 1457425 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phenomena of a drop impact on a restricted liquid surface
ترجمه فارسی عنوان
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کلمات کلیدی
قطره، امواج بازتاب شده، دیوار اطراف گزاف گویی، گرفتگی حباب،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The behavior of drops impacting on a gas-liquid interface restricted by surrounding walls is studied using a high-speed video camera. The droplet diameter used in this experiment was 2.64Â mm with impact Weber number of between 5 and 630. The highly purified water held by glass tubes of various inner diameters (6Â mm, 8Â mm, 12Â mm, 17Â mm and 26Â mm) is used as the restricted target liquid. A special phenomenon of bubble entrapment is observed in our experiments. It is found that the bubble formation is not only dependent on the impact velocity of the drop, but also the distance from the surrounding walls to impact point. Moreover, because of the restricted effect of surrounding walls, the critical velocity for the occurrence of canopy bubble decreases sharply with the reduction of the tube size. Decreasing the inner diameter of tube also makes the drop bounce higher than that on a broad liquid surface with the same Weber number.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Experimental Thermal and Fluid Science - Volume 51, November 2013, Pages 332-341
Journal: Experimental Thermal and Fluid Science - Volume 51, November 2013, Pages 332-341
نویسندگان
Jun Zou, YuLiang Ren, Chen Ji, XiaoDong Ruan, Xin Fu,