单液滴撞击超疏水冷表面的反弹及破碎行为

doi:10.11949/j.issn.0438-1157.20161518

化工学报 ›› 2017, Vol. 68 ›› Issue (6): 2473-2482.DOI: 10.11949/j.issn.0438-1157.20161518

单液滴撞击超疏水冷表面的反弹及破碎行为

李栋^1,2, 王鑫¹, 高尚文¹, 谌通¹, 赵孝保^1,2, 陈振乾³

1. 南京师范大学能源与机械工程学院, 江苏南京 210042;
2. 江苏省能源系统过程转化与减排技术工程实验室, 江苏南京 210042;
3. 东南大学能源与环境学院, 江苏南京 210096

收稿日期:2016-10-31 修回日期:2017-03-02 出版日期:2017-06-05 发布日期:2017-06-05
通讯作者: 李栋
基金资助:
江苏省自然科学基金青年项目（BK20150979）；江苏省高校自然科学研究面上项目（15KJB470009）

Rebounding and splashing behavior of single water droplet impacting on cold superhydrophobic surface

LI Dong^1,2, WANG Xin¹, GAO Shangwen¹, CHEN Tong¹, ZHAO Xiaobao^1,2, CHEN Zhenqian³

1. School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing 210042, Jiangsu, China;
2. Engineering Laboratory of Energy System Process Conversion and Emission Reduction Technology of Jiangsu Province, Nanjing 210042, China;
3. School of Energy and Environment, Southeast University, Nanjing 210096, Jiangsu, China

Received:2016-10-31 Revised:2017-03-02 Online:2017-06-05 Published:2017-06-05
Contact: 10.11949/j.issn.0438-1157.20161518
Supported by:
supported by the Youth Project of Natural Science Foundation of Jiangsu Province (BK20150979) and the Natural Science Foundation of College in Jiangsu Province (15KJB470009)

摘要/Abstract

摘要：

对直径2.8 mm的液滴撞击冷表面的动态行为进行快速可视化观测，对比研究单液滴撞击普通冷表面以及超疏水冷表面的动力学特性，同时对初始撞击速度以及冷表面温度对液滴动态演化行为的影响进行了对比分析。实验结果表明：与液滴撞击普通冷表面（温度-25~-5℃）发生瞬时冻结沉积相比，液滴撞击超疏水冷表面时均未发生冻结，而且伴随铺展、回缩、反弹以及破碎行为；撞击速度越大，普通冷表面上液滴铺展因子越大，而且液滴越易冻结。液滴低速（We≤76）撞击超疏水冷表面会发生反弹现象，但速度对液滴最大铺展时间无影响；液滴高速（We≥115）撞击超疏水冷表面后会产生明显液指，而且破碎为多组卫星液滴。此外，冷表面温度仅影响液滴反弹高度，对液滴最大铺展因子以及液滴铺展时间影响较小。结果表明超疏水表面可显著抑制液滴撞击冷表面的瞬时冻结沉积。

关键词: 超疏水, 冷表面, 铺展因子, 反弹, 破碎, 成像, 动力学, 数值分析

Abstract:

Dynamic behavior of a single water droplet with 2.8 mm in diameter impacting on cold surface was visually observed by high speed camera, the evolutional characteristics of water droplet impacting on cold superhydrophobic and bare aluminum surfaces were comparatively studied. Besides, the effect of initial impacting velocity and cold surface temperatures on the dynamic behavior of water droplet on cold surface were analyzed. The experimental result showed that compared with the instantly freezing of water droplet impacting on cold bare aluminum surface, the water droplet impacting on cold superhydrophobic surface (-25—-5℃) can not freeze along with spreading, retraction, rebound and smash behaviors. The higher the impacting velocity is, the bigger the spreading factor is and the more easily the water droplet freezes on cold bare aluminum surface. Moreover, rebounding behavior can be found when droplet impacts on the superhydrophobic surface with a low speed (We≤76) and velocity has no effect on the maximum spreading time. Also, obvious droplet fingers will appear and can be fragmented into many satellite droplets as droplet impacts on cold superhydrophobic surface with a high speed (We≥115). In addition, cold surface temperature has obvious effect on rebounding height but has little effect on the spreading factor and spreading time. The results indicate that the superhydrophobic surface can prevent the water droplet effectively from freezing instantly as the droplet impacts on cold surface.

Key words: superhydrophobic, cold surface, spreading factor, rebounding, splashing, tomography, kinetics, numerical analysis

中图分类号:

TK124

李栋, 王鑫, 高尚文, 谌通, 赵孝保, 陈振乾. 单液滴撞击超疏水冷表面的反弹及破碎行为[J]. 化工学报, 2017, 68(6): 2473-2482.

LI Dong, WANG Xin, GAO Shangwen, CHEN Tong, ZHAO Xiaobao, CHEN Zhenqian. Rebounding and splashing behavior of single water droplet impacting on cold superhydrophobic surface[J]. CIESC Journal, 2017, 68(6): 2473-2482.

参考文献 31

[1]	Dalili N, Edrisy A, Carriveau R. A review of surface engineering issues critical to wind turbine performance[J]. Renewable & Sustainable Energy Reviews, 2009, 13(2): 428-438.
[2]	Chen L, Xiao Z, Chan P C H, et al. A comparative study of droplet impact dynamics on a dual-scaled superhydrophobic surface and lotus leaf[J]. Applied Surface Science, 2011, 257(21): 8857-8863.
[3]	Raza M A, Van Swigchem J, Jansen H P, et al. Droplet impact on hydrophobic surfaces with hierarchical roughness[J]. Surface Topography Metrology & Properties, 2014, 2(2): 035002.
[4]	Lv C, Hao P, Zhang X, et al. Drop impact upon superhydrophobic surfaces with regular and hierarchical roughness[J]. Applied Physics Letters, 2016, 108(14): 141602.
[5]	Hao P F, Cunjing L V, Niu F L, et al. Water droplet impact on superhydrophobic surfaces with microstructures and hierarchical roughness[J]. Science China Physics Mechanics & Astronomy, 2014, 57(7): 1376-1381.
[6]	Leclear S, Leclear J, Abhijeet, et al. Drop impact on inclined superhydrophobic surfaces[J]. Journal of Colloid & Interface Science, 2015, 461: 114-121.
[7]	Yeong Y H, Burton J, Loth E, et al. Drop impact and rebound dynamics on an inclined superhydrophobic surface[J]. Langmuir, 2014, 30(40): 12027-12038.
[8]	Liang G, Guo Y, Shen S, et al. A study of a single liquid drop impact on inclined wetted surfaces[J]. Acta Mechanica, 2014, 225(12): 3353-3363.
[9]	Li X, Ma X, Lan Z. Dynamic behavior of the water droplet impact on a textured hydrophobic/superhydrophobic surface: the effect of the remaining liquid film arising on the Pillars'tops on the contact time[J]. Langmuir, 2010, 26(26): 4831-4838.
[10]	LEE J B, LEE S H. Dynamic wetting and spreading characteristics of a liquid droplet impinging on hydrophobic textured surfaces[J]. Langmuir, 2011, 27(11): 6565-6573.
[11]	Kannan R, Sivakumar D. Drop impact process on a hydrophobic grooved surface[J]. Colloids & Surfaces A, Physicochemical & Engineering Aspects, 2008, 317(1/2/3): 694-704.
[12]	Patil N D, Bhardwaj R, Sharma A. Droplet impact dynamics on micropillared hydrophobic surfaces[J]. Experimental Thermal & Fluid Science, 2016, 74: 195-206.
[13]	Tsai P, Pacheco S, Pirat C, et al. Drop impact upon micro-and nanostructured superhydrophobic surfaces[J]. Langmuir, 2009, 25(20): 12293-12298.
[14]	Pittoni P G, Lin Y C, Lin S Y. The impalement of water drops impinging onto hydrophobic/superhydrophobic graphite surfaces: the role of dynamic pressure, hammer pressure and liquid penetration time[J]. Applied Surface Science, 2014, 301(10): 515-524.
[15]	Khedir K R, Kannarpady G K, Ishihara H, et al. Temperature-dependent bouncing of super-cooled water on teflon-coated superhydrophobic tungsten nanorods[J]. Applied Surface Science, 2013, 279(32): 76-84.
[16]	Maitra T, Antonini C, Tiwari M K, et al. Supercooled water drops impacting superhydrophobic textures[J]. Langmuir, 2014, 30(36): 10855-10861.
[17]	Wang Z, Lopez C, Hirsa A, et al. Impact dynamics and rebound of water droplets on superhydrophobic carbon nanotube arrays[J]. Applied Physics Letters, 2007, 91(2): 023105.
[18]	杨宝海, 王宏, 朱恂, 等. 速度对液滴撞击超疏水壁面行为特性的影响[J]. 化工学报, 2012, 63(10): 3027-3033.
	YANG B H, WANG H, ZHU X, et al. Effect of velocity oil behavior of droplet impacting superhydrophobic surface[J]. CIESC Journal, 2012, 63(10): 3027-3033.
[19]	刘冬薇, 宁智, 吕明, 等. 液滴撞击超疏水壁面反弹及破碎行为研究[J]. 计算力学学报, 2016, 33(1): 106-112.
	LIU D W, NING Z, LÜ M, et al. Rebound and splash behaviors of droplet impacting on superhydrophobic surfaces[J]. Chinese Journal of Computational Mechanics, 2016, 33(1): 106-112.
[20]	Bange P G, Bhardwaj R. Computational study of bouncing and non-bouncing droplets impacting on superhydrophobic surfaces[J]. Theoretical and Computational Fluid Dynamics, 2016, 30(3): 1-25.
[21]	Lee C, Nam Y, Lastakowski H, et al. Two types of Cassie-to-Wenzel wetting transitions on superhydrophobic surfaces during drop impact[J]. Soft Matter, 2015, 11(23): 4592-4599.
[22]	Patil N D, Gada V H, Sharma A, et al. On dual-grid level-set method for contact line modeling during impact of a droplet on hydrophobic and superhydrophobic surfaces[J]. International Journal of Multiphase Flow, 2016, 81: 54-66.
[23]	XU Q, Li Z Y, Wang J, et al. Characteristics of single droplet impact on cold plate surfaces[J]. Drying Technology, 2012, 30(15): 1756-1762.
[24]	Jin Z, Wang Z, Sui D, et al. The impact and freezing processes of a water droplet on different inclined cold surfaces[J]. International Journal of Heat & Mass Transfer, 2016, 97: 211-223.
[25]	Jin Z, Sui D, Yang Z. The impact, freezing, and melting processes of a water droplet on an inclined cold surface[J]. International Journal of Heat & Mass Transfer, 2015, 90: 439-453.
[26]	Li H, Roisman I V, Tropea C. Influence of solidification on the impact of supercooled water drops onto cold surfaces[J]. Experiments in Fluids, 2015, 56(6): 1-13.
[27]	Wang Y, Xue J, Wang Q, et al. Verification of icephobic/anti-icing properties of a superhydrophobic surface[J]. ACS Applied Materials & Interfaces, 2013, 5(8): 3370-3381.
[28]	Mishchenko L, Hatton B, Bahadur V, et al. Design of ice-free nanostructured surfaces based on repulsion of impacting water droplets[J]. ACS Nano, 2010, 4(12): 7699-7707.
[29]	Bahadur V, Mishchenko L, Hatton B, et al. Predictive model for ice formation on superhydrophobic surfaces[J]. Langmuir, 2011, 27(23): 14143-14150.
[30]	Chen Y, Fu Y, Huang J, et al. Droplet bouncing on hierarchical branched nanotube arrays above and below the freezing temperature[J]. Applied Surface Science, 2016, 375: 127-135.
[31]	WANG H, HE G, TIAN Q. Effects of nano-fluorocarbon coating on icing[J]. Applied Surface Science, 2012, 258(18): 7219-7224.

单液滴撞击超疏水冷表面的反弹及破碎行为

Rebounding and splashing behavior of single water droplet impacting on cold superhydrophobic surface

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献 31

相关文章 15

编辑推荐

Metrics

本文评价

[1]	苏伟, 马东旭, 金旭, 刘忠彦, 张小松. 表面润湿性对霜层传递特性影响可视化实验研究[J]. 化工学报, 2023, 74(S1): 122-131.
[2]	毕丽森, 刘斌, 胡恒祥, 曾涛, 李卓睿, 宋健飞, 吴翰铭. 粗糙界面上纳米液滴蒸发模式的分子动力学研究[J]. 化工学报, 2023, 74(S1): 172-178.
[3]	于宏鑫, 邵双全. 水结晶过程的分子动力学模拟分析[J]. 化工学报, 2023, 74(S1): 250-258.
[4]	金伟其, 吴月荣, 王霞, 李力, 裘溯, 袁盼, 王铭赫. 化工园区工业气体泄漏气云红外成像检测技术与国产化装备进展[J]. 化工学报, 2023, 74(S1): 32-44.
[5]	金正浩, 封立杰, 李舒宏. 氨水溶液交叉型再吸收式热泵的能量及分析[J]. 化工学报, 2023, 74(S1): 53-63.
[6]	程成, 段钟弟, 孙浩然, 胡海涛, 薛鸿祥. 表面微结构对析晶沉积特性影响的格子Boltzmann模拟[J]. 化工学报, 2023, 74(S1): 74-86.
[7]	肖明堃, 杨光, 黄永华, 吴静怡. 浸没孔液氧气泡动力学数值研究[J]. 化工学报, 2023, 74(S1): 87-95.
[8]	郑佳丽, 李志会, 赵新强, 王延吉. 离子液体催化合成2-氰基呋喃反应动力学研究[J]. 化工学报, 2023, 74(9): 3708-3715.
[9]	范孝雄, 郝丽芳, 范垂钢, 李松庚. LaMnO₃/生物炭催化剂低温NH₃-SCR催化脱硝性能研究[J]. 化工学报, 2023, 74(9): 3821-3830.
[10]	汪林正, 陆俞冰, 张睿智, 罗永浩. 基于分子动力学模拟的VOCs热氧化特性分析[J]. 化工学报, 2023, 74(8): 3242-3255.
[11]	曾如宾, 沈中杰, 梁钦锋, 许建良, 代正华, 刘海峰. 基于分子动力学模拟的Fe₂O₃纳米颗粒烧结机制研究[J]. 化工学报, 2023, 74(8): 3353-3365.
[12]	李锦潼, 邱顺, 孙文寿. 煤浆法烟气脱硫中草酸和紫外线强化煤砷浸出过程[J]. 化工学报, 2023, 74(8): 3522-3532.
[13]	杨越, 张丹, 郑巨淦, 涂茂萍, 杨庆忠. NaCl水溶液喷射闪蒸-掺混蒸发的实验研究[J]. 化工学报, 2023, 74(8): 3279-3291.
[14]	张蒙蒙, 颜冬, 沈永峰, 李文翠. 电解液类型对双离子电池阴阳离子储存行为的影响[J]. 化工学报, 2023, 74(7): 3116-3126.
[15]	何宣志, 何永清, 闻桂叶, 焦凤. 磁液液滴颈部自相似破裂行为[J]. 化工学报, 2023, 74(7): 2889-2897.