The impact and freezing processes of a water droplet on different cold cylindrical surfaces

被引：49
|
作者：
Jin, Zheyan [1 ,2 ]
Zhang, Huanhuan [2 ]
Yang, Zhigang [1 ]
机构：
[1] Shanghai Key Lab Vehicle Aerodynam & Vehicle Ther, Shanghai 201804, Peoples R China
[2] Tongji Univ, Sch Aerosp Engn & Appl Mech, Shanghai 200092, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2017年 / 113卷
关键词：
Impact; Freezing; Water droplet; Cold; Cylindrical surface;
D O I：
10.1016/j.ijheatmasstransfer.2017.05.111
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In the present study, we experimentally investigated the impact and freezing processes of a water droplet on different cold cylindrical surfaces. The results showed that, during the impact process of the water droplet, the maximum contact diameter along azimuthal direction was generally larger than that along axial direction. Besides, during the water droplet recoiling process, the radius of the cylindrical surface was found to have an apparent effect on the spreading factor along azimuthal direction but a minor influence on that along axial direction. During the freezing process of the water droplet, the change of the temperature as well as the radius of the cylindrical surface did not result in a significant variation of the ice bead shape. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：318 / 323
页数：6
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