Effect of the liquid temperature on the interaction behavior for single water droplet impacting on the immiscible liquid

doi:10.1088/1674-1056/abf34b

中国物理B ›› 2021, Vol. 30 ›› Issue (11): 116801-116801.doi: 10.1088/1674-1056/abf34b

Effect of the liquid temperature on the interaction behavior for single water droplet impacting on the immiscible liquid

Tiantian Wang(汪甜甜)^1,2, Changjian Wang(王昌建)^1,3,†, Shengchao Rui(芮圣超)^1,2, and Kai Pan(泮凯)¹

1 School of Civil Engineering, Hefei University of Technology, Hefei 230009, China;
2 Anhui International Joint Research Center on Hydrogen Safety, Hefei 230009, China;
3 Engineering Research Center of Safety Critical Industrial Measurement and Control Technology, Ministry of Education, Hefei 230009, China

收稿日期:2021-02-07 修回日期:2021-03-17 接受日期:2021-03-30 出版日期:2021-10-13 发布日期:2021-11-03
通讯作者: Changjian Wang E-mail:chjwang@hfut.edu.cn
基金资助:
Project supported by the National Key Research and Development Program of China (Grant No. 2017YFC0805100) and the Fundamental Research Funds for the Central Universities of China (Grant No. PA2020GDGP0052).

Effect of the liquid temperature on the interaction behavior for single water droplet impacting on the immiscible liquid

Tiantian Wang(汪甜甜)^1,2, Changjian Wang(王昌建)^1,3,†, Shengchao Rui(芮圣超)^1,2, and Kai Pan(泮凯)¹

1 School of Civil Engineering, Hefei University of Technology, Hefei 230009, China;
2 Anhui International Joint Research Center on Hydrogen Safety, Hefei 230009, China;
3 Engineering Research Center of Safety Critical Industrial Measurement and Control Technology, Ministry of Education, Hefei 230009, China

Received:2021-02-07 Revised:2021-03-17 Accepted:2021-03-30 Online:2021-10-13 Published:2021-11-03
Contact: Changjian Wang E-mail:chjwang@hfut.edu.cn
Supported by:
Project supported by the National Key Research and Development Program of China (Grant No. 2017YFC0805100) and the Fundamental Research Funds for the Central Universities of China (Grant No. PA2020GDGP0052).

摘要/Abstract

摘要： The interaction of single water droplet impacting on immiscible liquid surface was focused with the temperature varying from 50 ℃ to 210 ℃. The impact behavior is recorded with a high-speed camera running at 2000 frames per second. It is found that droplet diameter, oil temperature, and Weber number have important influences on impact behaviors. Three typical phenomena, including penetration, crater-jet, and crater-jet-secondary jet, were observed. Penetration only occurs when the Weber number is below 105. With Weber number increasing to 302, the jet begins to appear. Moreover, to gain deeper physical insight into the crater formation and jet formation, the energy of droplet impingement onto the liquid pool surface was estimated. The oil temperature has a significant effect on the energy conversion efficiency. High temperature is beneficial to improve energy conversion efficiency.

关键词: droplet impact, crater-jet, weber number, immiscible liquid

Abstract: The interaction of single water droplet impacting on immiscible liquid surface was focused with the temperature varying from 50 ℃ to 210 ℃. The impact behavior is recorded with a high-speed camera running at 2000 frames per second. It is found that droplet diameter, oil temperature, and Weber number have important influences on impact behaviors. Three typical phenomena, including penetration, crater-jet, and crater-jet-secondary jet, were observed. Penetration only occurs when the Weber number is below 105. With Weber number increasing to 302, the jet begins to appear. Moreover, to gain deeper physical insight into the crater formation and jet formation, the energy of droplet impingement onto the liquid pool surface was estimated. The oil temperature has a significant effect on the energy conversion efficiency. High temperature is beneficial to improve energy conversion efficiency.

Key words: droplet impact, crater-jet, weber number, immiscible liquid

中图分类号: (Liquid-liquid interfaces)

68.05.-n

47.55.dr (Interactions with surfaces) 47.55.db (Drop and bubble formation)

Tiantian Wang(汪甜甜), Changjian Wang(王昌建), Shengchao Rui(芮圣超), and Kai Pan(泮凯). Effect of the liquid temperature on the interaction behavior for single water droplet impacting on the immiscible liquid[J]. 中国物理B, 2021, 30(11): 116801-116801.

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Effect of the liquid temperature on the interaction behavior for single water droplet impacting on the immiscible liquid

Effect of the liquid temperature on the interaction behavior for single water droplet impacting on the immiscible liquid

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