Study on directionally propelled droplet based on the piezoelectric-acoustic streaming effect

doi:10.11949/0438-1157.20241382

CIESC Journal ›› 2025, Vol. 76 ›› Issue (S1): 181-186.DOI: 10.11949/0438-1157.20241382

• Fluid dynamics and transport phenomena • Previous Articles

Study on directionally propelled droplet based on the piezoelectric-acoustic streaming effect

Yutao WANG¹(), Jianying GONG¹(), Xiangyu LI¹, Xin WU¹, Xiufang LIU²

^1.MOE Key Laboratory of Thermo-Fluid Science and Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China
^2.MOE Key Laboratory of Cryogenic Technology and Equipment, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China

Received:2024-12-02 Revised:2024-12-13 Online:2025-06-26 Published:2025-06-25
Contact: Jianying GONG

基于压电-声流效应的液滴定向驱动技术研究

王宇涛¹(), 龚建英¹(), 李祥宇¹, 吴馨¹, 刘秀芳²

^1.西安交通大学能源与动力工程学院，热流科学与工程教育部重点实验室，陕西西安 710049
^2.西安交通大学深低温技术与装备教育部重点实验室，陕西西安 710049

通讯作者: 龚建英
作者简介:王宇涛（2000—），男，博士研究生，wyt20001209@stu.xjtu.edu.cn
基金资助:
国家自然科学基金项目(51776149);国家重点研发计划项目(2021YFB1507303)

Abstract

Abstract:

Sessile droplets on a flat plate can absorb ultrasonic vibration and move directionally. Utilizing the piezoelectricity-acoustic streaming effect to propel droplets away from the surface directionally shows promise in inhibiting frost formation during the early stage of condensation droplets. In this study, a droplet propel technology based on the piezoelectricity-acoustic streaming effect is proposed. An experimental device with a glass flat surface as the substrate was developed, the working principle of the device was analyzed, and the effects of driving voltage and droplet volume on droplet movement speed are studied. This method can drive droplets larger than 50 μl with a voltage above 35 V, and under experimental conditions, the maximum droplet movement speed reached 88 mm/s. The results indicate that directional driving of droplets using the piezoelectric acoustic streaming effect is an effective method for defrosting formation.

Key words: piezoelectricity, acoustic streaming, droplet movement, defrost, energy analysis

摘要：

附着在平板上的液滴能够吸收超声振动产生定向移动，采用压电-声流效应将液滴定向驱离表面，有望在结霜早期的冷凝液滴阶段抑制霜的形成。提出一种基于压电-声流效应的液滴定向驱动技术，开发了以玻璃平板为基底的实验装置并分析了装置的工作原理，研究了驱动电压和液滴体积对液滴运动速度的影响。这种技术能够通过35 V以上的低电压驱动大于50 μl的液滴，实验条件下液滴的运动速度最大达88 mm/s。结果表明，压电-声流效应定向驱动液滴是一种有效的抑霜方法。

关键词: 压电效应, 声流效应, 液滴驱动, 抑霜, 能量分析

Yutao WANG, Jianying GONG, Xiangyu LI, Xin WU, Xiufang LIU. Study on directionally propelled droplet based on the piezoelectric-acoustic streaming effect[J]. CIESC Journal, 2025, 76(S1): 181-186.

王宇涛, 龚建英, 李祥宇, 吴馨, 刘秀芳. 基于压电-声流效应的液滴定向驱动技术研究[J]. 化工学报, 2025, 76(S1): 181-186.

Figures/Tables 7

Table 1 Acoustic parameters of water and glass

参数	水	玻璃
密度/(kg/m³)	1000	2210
横波波速/(m/s)	—	2400
纵波波速/(m/s)	1500	6500

Fig.1 (a) Schematic diagram of the experimental principle of directional droplet driving based on the piezoelectric-acoustic streaming effect; (b) Experimental setup diagram; (c) Acoustic streaming effect inside the droplet

Fig.2 Acoustic instruments and experimental platform

Fig.3 Motion trajectory of a 100 μl droplet excited at 45 V

Fig.4 Influence of driving voltage and droplet volume on droplet motion characteristics

Fig.5 Determination of optimal vibration frequency based on numerical simulation results

Fig.6 Influence of droplet radius on dimensionless acoustic energy density absorption of droplets

References 20

1	王沣浩, 马龙霞, 王志华, 等. 空气源热泵除霜控制方法研究现状及展望[J]. 制冷学报, 2021, 42(5): 27-35.
	Wang F H, Ma L X, Wang Z H, et al. Research status and prospect on defrosting control method of air source heat pump[J]. Journal of Refrigeration, 2021, 42(5): 27-35.
2	牛建会, 梁征, 刘福生, 等. 空气源热泵多台室外机并联轮换除霜实验研究[J]. 制冷学报, 2024, 45(6): 158-166.
	Niu J H, Liang Z, Liu F S, et al. Experimental study on air-source heat pump alternate defrosting with multiple outdoor units in parallel [J]. Journal of Refrigeration, 2024, 45(6): 158-166.
3	Song M J, Dang C B. Review on the measurement and calculation of frost characteristics[J]. International Journal of Heat and Mass Transfer, 2018, 124: 586-614.
4	吴馨, 龚建英, 靳龙, 等. 超声波激励下铝板表面液滴群输运特性的研究[J]. 化工学报, 2023, 74(S1): 104-112.
	Wu X, Gong J Y, Jin L, et al. Study on the transportation characteristics of droplets on the aluminium surface under ultrasonic excitation[J]. CIESC Journal, 2023, 74(S1): 104-112.
5	Wu X, Gong J Y, Gao T Y, et al. Experimental study on dynamic wetting behavior of liquid droplets on the aluminum surfaces excited by ultrasonic waves[J]. Applied Thermal Engineering, 2024, 248: 123209.
6	Guo H A, Maheshwari S, Patel M S, et al. Droplet actuation on superhydrophobic substrates via electric field gradients[J]. Applied Physics Letters, 2019, 114(11): 113702.
7	Wang L, Zhang C C, Wei Z J, et al. Bioinspired fluoride-free magnetic microcilia arrays for anti-icing and multidimensional droplet manipulation[J]. ACS Nano, 2024, 18(1): 526-538.
8	Sun Q Q, Wang D H, Li Y N, et al. Surface charge printing for programmed droplet transport[J]. Nature Materials, 2019, 18(9): 936-941.
9	Xi H D, Zheng H, Guo W, et al. Active droplet sorting in microfluidics: a review[J]. Lab on a Chip, 2017, 17(5): 751-771.
10	Hsu J C, Chao C L. Acoustophoretic patterning of microparticles in a microfluidic chamber driven by standing Lamb waves[J]. Applied Physics Letters, 2021, 119(10): 103504.
11	Auld B A. Acoustic Fields and Waves in Solids[M]. New York: Wiley, 1973.
12	Jothi Saravanan T, Singh Chauhan S. Study on pre-damage diagnosis and analysis of adhesively bonded smart PZT sensors using EMI technique[J]. Measurement, 2022, 188: 110411.
13	Her S C, Chen H Y. Deformation of composite laminates induced by surface bonded and embedded piezoelectric actuators[J]. Materials, 2020, 13(14): 3201.
14	Nyborg W L. Acoustic streaming near a boundary[J]. The Journal of the Acoustical Society of America, 1958, 30(4): 329-339.
15	Muller P B, Barnkob R, Jensen M J H, et al. A numerical study of microparticle acoustophoresis driven by acoustic radiation forces and streaming-induced drag forces[J]. Lab on a Chip, 2012, 12(22): 4617-4627.
16	Maramizonouz S, Rahmati M, Link A, et al. Numerical and experimental studies of acoustic streaming effects on microparticles/droplets in microchannel flow[J]. International Journal of Engineering Science, 2021, 169: 103563.
17	Hassan G, Yilbas B S, Bahatab S, et al. A water droplet-cleaning of a dusty hydrophobic surface: influence of dust layer thickness on droplet dynamics[J]. Scientific Reports, 2020, 10(1): 14746.
18	Liang W, Lindner G. Investigations of droplet movement excited by Lamb waves on a non-piezoelectric substrate[J]. 2013, 114(4): 044501.
19	Liang W, Gu H, Wang T, et al. Investigation on the motion of droplets excited by Lamb waves on an inclined non-piezoelectric curved substrate[J]. Japanese Journal of Applied Physics, 2023, 62(8): 084001.
20	Jiao Z J, Huang X Y, Nguyen N T. Scattering and attenuation of surface acoustic waves in droplet actuation[J]. Journal of Physics A: Mathematical and Theoretical, 2008, 41(35): 355502.

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Study on directionally propelled droplet based on the piezoelectric-acoustic streaming effect

基于压电-声流效应的液滴定向驱动技术研究

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