期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 127, 期 -, 页码 677-682出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2018.08.085
关键词
Water droplet; Drop impact; Heated pool; Fluid dynamic
资金
- Natural Science Foundation of China [51323010]
- China Postdoctoral Science Foundation [2016M592068]
- Opening Fund of State Key Laboratory of Fire Science [HZ2017-KF06]
- Fundamental Research Funds for the Central Universities [WK2320000037]
A series of experiments were conducted concerning the influence of liquid pool temperature on the formation of surface bubble. Single water droplet impacted on an ethanol pool 56 mm in depth, and the droplet diameter is about 2 mm. The impaction processes were recorded using a high-speed photography camera with 2000 fps. All the experiments were performed at 20 degrees C and the ethanol pool was heated by a hot plate. The result reveals that the critical Weber number for forming surface bubble is affected by the pool temperature, decreasing with the increase of impacted liquid temperature. (C) 2018 Elsevier Ltd. All rights reserved.
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