| Citation: | CHEN Pengfei, TANG Congcong, DU Mengmeng, et al. Generation of multi-stream uniform droplets based on piezoelectric excitation[J]. Journal of Aerospace Power, 2025, 40（12）：20240274 doi: 10.13224/j.cnki.jasp.20240274
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For solving the uniform droplets generation problem of multi-stream jets based on piezoelectric excitation, the influences of piezoelectric excitation frequency and waveform on droplet generation characteristics were studied. The droplet diameter, uniformity and jet fragmentation distance were obtained by processing jet images based on image capture technology. The experiment results showed that when the jet velocity was fixed, the characteristic wavelength of the jet fragmentation and the droplet diameter decreased with the increment of excitation frequency. Apart from the optimal excitation frequency of jet fragmentation predicted by the jet instability theory, the liquid resonance in the cavity also affected the jet fragmentation distance and the droplet generation characteristic. With the same excitation frequency and voltage amplitude, the triangular wave with the lowest energy consumption had the shortest jet fragmentation distance and the most excellent droplet generation characteristics, followed by the sine wave. The square wave with the highest energy consumption had the worst droplet generation characteristics. Therefore, the criterion for selecting the exciting waveform of single-strand jet is not suitable for multi-stream jets.
| [1] |
SIEGEL R. Finite difference solution for transient cooling of a radiating-conducting semitransparent layer[J]. Journal of Thermophysics and Heat Transfer, 1992, 6(1): 77-83. doi: 10.2514/3.321
|
| [2] |
MATTICK A T, HERTZBERG A. Liquid droplet radiators for heat rejection in space[J]. Journal of Energy, 1981, 5(6): 387-393. doi: 10.2514/3.62557
|
| [3] |
TAGLIAFICO L A, FOSSA M. Liquid sheet radiators for space power systems[J]. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 1999, 213(6): 399-406. doi: 10.1243/0954410991533115
|
| [4] |
RAYLEIGH W S. On the instability of jets[J]. Proceedings of the London Mathematical Society, 1879, 10: 4-10.
|
| [5] |
WEBER C. Zum zerfall eines flüssigkeitsstrahles[J]. Zeitschrift für Angewandte Mathematik und Mechanik, 1931, 11(2): 136-154.
|
| [6] |
ASHGRIZ N. Handbook of atomization and sprays: theory and applications[M]. New York, US: Springer Science & Business Media, 2011.
|
| [7] |
ORME M, MUNTZ E P. New technique for producing highly uniform droplet streams over an extended range of disturbance wavenumbers[J]. Review of Scientific Instruments, 1987, 58(2): 279-284. doi: 10.1063/1.1139322
|
| [8] |
ORME M, MUNTZ E P. The manipulation of capillary stream breakup using amplitude-modulated disturbances: a pictorial and quantitative representation[J]. Physics of Fluids A: Fluid Dynamics, 1990, 2(7): 1124-1140. doi: 10.1063/1.857612
|
| [9] |
ORME M. On the genesis of droplet stream microspeed dispersions[J]. Physics of Fluids A: Fluid Dynamics, 1991, 3(12): 2936-2947. doi: 10.1063/1.857836
|
| [10] |
ORME M. A novel technique of rapid solidification net-form materials synthesis[J]. Journal of Materials Engineering and Performance, 1993, 2(3): 399-405. doi: 10.1007/BF02648828
|
| [11] |
HILBING J H, HEISTER S D. Droplet size control in liquid jet breakup[J]. Physics of Fluids, 1996, 8(6): 1574-1581. doi: 10.1063/1.868931
|
| [12] |
BRENN G, LACKERMEIER U. Drop formation from a vibrating orifice generator driven by modulated electrical signals[J]. Physics of Fluids, 1997, 9(12): 3658-3669. doi: 10.1063/1.869503
|
| [13] |
TOTANI T, ITAMI M, NAGATA H, et al. Performance of droplet generator and droplet collector in liquid droplet radiator under microgravity[J]. Microgravity Science and Technology, 2002, 13(2): 42-46. doi: 10.1007/BF02872070
|
| [14] |
TOTANI T, KODAMA T, NAGATA H, et al. Thermal design of liquid droplet radiator for space solar-power system[J]. Journal of Spacecraft and Rocket, 2005, 42(3): 493-499. doi: 10.2514/1.11006
|
| [15] |
TOTANI T, KODAMA T, WATANABE K, et al. Numerical and experimental studies on circulation of working fluid in liquid droplet radiator[J]. Acta Astronautica, 2006, 59(1): 192-199.
|
| [16] |
CASTREJÓN-PITA J R, MORRISON N F, HARLEN O G, et al. Experimental and Lagrangian simulations on the formation of droplets in continuous mode[J]. Physical Review E, 2011, 83: 016301. doi: 10.1103/PhysRevE.83.016301
|
| [17] |
薛松龄, 柴宝华, 王泽鸣, 等. 均匀液滴喷射性能的实验研究[J]. 核科学与工程, 2021, 41(5): 1042-1046. XUE Songling, CHAI Baohua, WANG Zeming, et al. Experimental study on injection performance of uniform droplets[J]. Nuclear Science and Engineering, 2021, 41(5): 1042-1046. (in Chinese
XUE Songling, CHAI Baohua, WANG Zeming, et al. Experimental study on injection performance of uniform droplets[J]. Nuclear Science and Engineering, 2021, 41(5): 1042-1046. (in Chinese)
|
| [18] |
薛松龄, 王泽鸣, 柴宝华, 等. 均匀液滴尺寸及间距的实验研究[J]. 强激光与粒子束, 2021, 33(7): 076002. XUE Songling, WANG Zeming, CHAI Baohua, et al. Experimental study of uniform droplets size and space[J]. High Power Laser and Particle Beams, 2021, 33(7): 076002. (in Chinese
XUE Songling, WANG Zeming, CHAI Baohua, et al. Experimental study of uniform droplets size and space[J]. High Power Laser and Particle Beams, 2021, 33(7): 076002. (in Chinese)
|
| [19] |
陈鹏飞, 严小平, 孙策, 等. 真空环境中压电激励对射流破碎特性的影响[J]. 火箭推进, 2020, 46(4): 46-53. CHEN Pengfei, YAN Xiaoping, SUN Ce, et al. Effect of piezoelectric excitation on jet fragmentation in vacuum environment[J]. Journal of Rocket Propulsion, 2020, 46(4): 46-53. (in Chinese
CHEN Pengfei, YAN Xiaoping, SUN Ce, et al. Effect of piezoelectric excitation on jet fragmentation in vacuum environment[J]. Journal of Rocket Propulsion, 2020, 46(4): 46-53. (in Chinese)
|
| [20] |
CHEN Y S, HUANG Yulin, KUO C H, et al. Investigation of design parameters for droplet generators driven by piezoelectric actuators[J]. International Journal of Mechanical Sciences, 2007, 49(6): 733-740. doi: 10.1016/j.ijmecsci.2006.10.004
|
| [21] |
WU Xuecheng, LV Qimeng, WU Yingchun, et al. Dual-stream of monodisperse droplet generator[J]. Chemical Engineering Science, 2020, 223: 115645. doi: 10.1016/j.ces.2020.115645
|
| [22] |
LV Qimeng, WU Yingchun, LI Can, et al. Controllable multiple mixing monodisperse droplet streams generation using wavelength-modulated disturbances[J]. Physics of Fluids, 2021, 33(9): 093605. doi: 10.1063/5.0063821
|
| [23] |
ZHU Maoguo, ZHAO Quanbin, CHONG Daotong, et al. Numerical study on satellite droplet formation in laminar jet breakup for a liquid droplet radiator[J]. Annals of Nuclear Energy, 2022, 174: 109149. doi: 10.1016/j.anucene.2022.109149
|
| [24] |
ZHU Maoguo, ZHAO Quanbin, CHONG Daotong, et al. Numerical investigation of nozzle length effects on Rayleigh jet breakup behaviors and droplet formation properties at different modulation amplitudes in liquid droplet radiator[J]. Annals of Nuclear Energy, 2024, 199: 110344. doi: 10.1016/j.anucene.2024.110344
|
| [25] |
王社良, 刘敏, 樊禹江. 新型压电陶瓷驱动器的特性分析[J]. 材料导报, 2012, 26(22): 153-156. WANG Sheliang, LIU Min, FAN Yujiang. Analysis on characteristics of new type piezoelectric ceramic actuators[J]. Materials Review, 2012, 26(22): 153-156. (in Chinese doi: 10.3969/j.issn.1005-023X.2012.22.038
WANG Sheliang, LIU Min, FAN Yujiang. Analysis on characteristics of new type piezoelectric ceramic actuators[J]. Materials Review, 2012, 26(22): 153-156. (in Chinese) doi: 10.3969/j.issn.1005-023X.2012.22.038
|
| [26] |
王丹, 陈鹏飞, 杨岸龙, 等. Y型喷嘴反压环境粒径的图像捕捉测量技术[J]. 航空动力学报, 2018, 33(1): 174-181. WANG Dan, CHEN Pengfei, YANG Anlong, et al. Granulometric technique by photographic methods of Y-jet nozzles under back pressure condition[J]. Journal of Aerospace Power, 2018, 33(1): 174-181. (in Chinese
WANG Dan, CHEN Pengfei, YANG Anlong, et al. Granulometric technique by photographic methods of Y-jet nozzles under back pressure condition[J]. Journal of Aerospace Power, 2018, 33(1): 174-181. (in Chinese)
|
| [27] |
陈鹏飞, 徐云飞, 孙策, 等. 多射流喷射器的压电激励特性[J]. 航空动力学报, 2017, 32(8): 1815-1821. CHEN Pengfei, XU Yunfei, SUN Ce, et al. Piezoelectric excitation property of multi-nozzle injector[J]. Journal of Aerospace Power, 2017, 32(8): 1815-1821. (in Chinese
CHEN Pengfei, XU Yunfei, SUN Ce, et al. Piezoelectric excitation property of multi-nozzle injector[J]. Journal of Aerospace Power, 2017, 32(8): 1815-1821. (in Chinese)
|
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