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Journal of Applied Fluid Mechanics، جلد ۱۴، شماره ۲، صفحات ۵۸۱-۵۸۷
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عنوان انگلیسی Experimental Studies of the Evaporation of Pure Liquid Droplets in a Single-Axis Non-Resonant Levitator
چکیده انگلیسی مقاله Though a simple daily observation, evaporation of drops is still poorly understood due to the complex nature that involves hydrodynamic effects in the bulk fluids and transport phenomena at the liquid-vapor interface. This paper reports on the evaporation of single component droplets (water, ethanol, acetone, and glycerol) levitated in a single-axis non-resonant levitator. It was observed that the acetone and ethanol evaporated faster than water, although the acetone is the most volatile. The estimated lifetime of acetone is less than 5min, which is much shorter as compared to 56min for ethanol or about 90min for water droplets. On the other hand, glycerol showed no tendency to evaporate. With increasing the evaporation time, the ratio of large and small semi-axis decreases and tends to 1 corresponding to changes in drops shape from oblate ellipsoid to a sphere. Based on the classical D2-law, the surface regression rates have been estimated.
کلیدواژه‌های انگلیسی مقاله Evaporation, Surface regression, Pure liquid droplet, resonant levitator, Non
نویسندگان مقاله M. Radmilovic-Radjenovic |
Institute of Physics, University of Belgrade, 11080 Belgrade, Serbia

D. Radjenovic |
Faculty of Mathematics, University of Belgrade, 11000 Belgrade, Serbia

M. Mitric |
Vinc ̌a Institute of Nuclear Science, POB 522,1000 Belgrade, Serbia

B. Radjenovic |
Institute of Physics, University of Belgrade, 11080 Belgrade, Serbia

نشانی اینترنتی https://www.jafmonline.net/article_1105_17c748ee5308ccb7d30fde8ea0b1273e.pdf
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