两电极等离子体合成射流激励器工作特性研究

王林; 夏智勋; 罗振兵; 周岩; 张宇

doi:10.7498/aps.63.194702

摘要

采用放电测量和高速阴影技术对两电极等离子体合成射流激励器工作特性进行了系统实验研究. 实验表明：激励器工作击穿电压和放电峰值电流随激励器所处环境压强的降低和放电频率的增大而减小，激励器腔体内的放电过程为火花电弧放电. 典型的等离子体合成射流流场包含有一道前驱激波和一股呈蘑菇状的高速射流. 在整个射流发展过程中，前驱激波以当地声速恒速传播，不随激励器条件的改变而变化，波的强度则随着激励器出口直径的减小、腔体体积的增大、环境压强的降低和放电频率的升高而减小. 激励器腔体体积和放电频率的增加会降低腔内气体的加热效果，并减小射流速度. 激励器出口直径和环境压强对射流速度的影响按规律变化且存在最佳值. 本文实各验条件下激励器都产生了明显的前驱激波和高速射流，具有实现高速流场主动流动控制的应用潜能.

关键词:

Abstract

Performance of a two-electrode plasma synthetic jet actuator has been experimentally studied by discharge measurements with high-speed shadowgraphy technology. Results show that the breakdown voltage and the peak discharge current of the actuator may be decreased by decreasing the ambient pressure and increasing the discharge frequency. The discharge developed in the actuator cavity is a spark-arc discharge. In the actuator could be created a strong “precursor shock” and a high kinetic energy jet. During the development of the plasma synthetic jet, the speed of the “precursor shock” is invariable and the jet propagates with an approximately local sonic velocity (350 m/s). But with decreasing jet exit diameter and ambient pressure, the increase of the cavity volume and the discharge frequency could lead to decreasing strength of the “precursor shock”. Heating efficiency of the gas in the cavity will decrease with the increase of the cavity volume and discharge frequency, and the jet velocity is decreased as well. The jet exit diameter and the ambient pressure can have their optimal values for affecting the velocity of the jet. Under all the working conditions we have studied, the plasma actuator may create a strong “precursor shock” and a high-speed jet, and also may have the potential to be used in high-speed active flow control.

Keywords:

作者及机构信息

1.
国防科技大学, 高超声速冲压发动机技术重点实验室, 长沙 410073

基金项目: 国家自然科学基金（批准号：11372349）、全国优秀博士论文作者专项资金（批准号：201058）和国防科技大学杰出青年基金（批准号：CJ110101）资助的课题.

Authors and contacts

1.
Science and Technology on Scramjet Laboratory, National University of Defense Technology, Changsha 410073, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 11372349), the Foundation for the Author of National Excellent Doctoral Dissertation of China (Grant No. 201058), and the Natural Science Fund for Distinguished Young Scholars of National University of Defense Technology, China (Grant No. CJ110101).

参考文献

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[21]	Ko H S, Haack S J, Land Ⅲ H B, Cybyk B Z, Katz J, Kim H J 2010 Flow Meas. Instrum. 21 443
[22]	Reedy T M, Kale N V, Dutton J C, Elliott G S 2012 AIAA Paper 2012-0904
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[24]	Belinger A, Hardy P, Barricau P, Cambronne J P, Caruana D 2011 J. Phys. D: Appl. Phys. 44 365201
[25]	Jin D, Li Y H, Jia M, Song H M, Cui W, Sun Q, Li Y F 2013 Plasma Sci. Technol. 15 1034
[26]	Narayanaswamy V, Raja L L, Clemens N T 2012 Phys. Fluids 24 076101
[27]	Emerick Ⅱ T M, Ali M Y, Foster C H, Alvi F S, Popkin S H, Cybyk B Z 2012 AIAA Paper 2012-2814
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施引文献

[1]	Cattafesta L N, Sheplak M 2011 Annu. Rev. Fluid Mech. 43 247
[2]	Wang L, Luo Z B, Xia Z X, Liu B, Deng X 2012 Sci China Tech. Sci. 55 2225
[3]	Moreau E 2007 J. Phys. D: Appl. Phys. 40 605
[4]	Wang J J, Choi K S, Feng L H, Jukes T N, Whalley R D 2013 Prog. Aerospace Sci. 62 52
[5]	Nie W S, Cheng Y F, Che X K 2012 Adv. Mech. 42 6(in Chinese) [聂万胜, 程钰锋, 车学科 2012 力学进展 42 6]
[6]	Corke T C, Enloe C L, Wilkinson S P 2010 Annu. Rev. Fluid Mech. 42 505
[7]	Roth J 2003 Phys. Plasmas. 42 165503
[8]	Zhu Y F, Wu Y, Cui W, Li Y H, Jia M 2013 J. Phys. D: Appl. Phys. 43 355205
[9]	Nishihara M, Takashima K, Rich J, Adamovich I 2011 Phys. Fluids 23 066101
[10]	Moreau E, Labergue A Touchard G 2005 J. Adv. Oxydation 8 241
[11]	Wang J, Li Y H, Cheng B Q, Su C B, Song H M, Wu Y 2009 Acta Phys. Sin. 58 5513(in Chinese) [王健, 李应红, 程邦勤, 苏长兵, 宋慧敏, 吴云 2009 58 5513]
[12]	Merriman S, Ploenjes E, Palm P, Adamovich I V 2001 AIAA J. 39 1547
[13]	Grossman K R, Cybyk B Z, vanWie D M 2003 AIAA Paper 2003-57
[14]	Narayanaswamy V, Raia L L, Clemens N T 2010 AIAA J. 48 297
[15]	Wang L, Xia Z X, Luo Z B, Chen J 2014 AIAA J. 52 879
[16]	Cybyk B Z, Simon D H, LandⅢ H B, Chen J, Katz J 2006 AIAA Paper 2006-478
[17]	Popkin S H, Cybyk B Z, Land Ⅲ H B, Emerick Ⅱ T M, Foster C H, Alvi F S 2013 AIAA Paper 2013-0322
[18]	Haack S J, Taylor T, Emhoff J, Cybyk B Z 2010 AIAA Paper 2010-4979
[19]	Taylor T M, Cybyk B Z 2008 AIAA Paper 2008-2608
[20]	Wang L, Luo Z B, Xia Z X, Liu B 2013 Acta Phys. Sin. 62 125207(in Chinese) [王林, 罗振兵, 夏智勋, 刘冰 2013 62 125207]
[21]	Ko H S, Haack S J, Land Ⅲ H B, Cybyk B Z, Katz J, Kim H J 2010 Flow Meas. Instrum. 21 443
[22]	Reedy T M, Kale N V, Dutton J C, Elliott G S 2012 AIAA Paper 2012-0904
[23]	Shin J 2010 Chin. J. Aeronaut. 23 518
[24]	Belinger A, Hardy P, Barricau P, Cambronne J P, Caruana D 2011 J. Phys. D: Appl. Phys. 44 365201
[25]	Jin D, Li Y H, Jia M, Song H M, Cui W, Sun Q, Li Y F 2013 Plasma Sci. Technol. 15 1034
[26]	Narayanaswamy V, Raja L L, Clemens N T 2012 Phys. Fluids 24 076101
[27]	Emerick Ⅱ T M, Ali M Y, Foster C H, Alvi F S, Popkin S H, Cybyk B Z 2012 AIAA Paper 2012-2814
[28]	Raizer Y P 1991 Gas Discharge Physics (Berlin: Springer Press) p246
[29]	Xu X J, Zhu D C 1995 Physics of Gas Discharge (Shanghai: Fudan University Press) P215 (in Chinese) [徐学基, 诸定昌1995气体放电物理(上海: 复旦大学出版社)第215页]
[30]	GreasonW D, Kucerovsky Z, Bulach S, Flatley M W 1997 IEEE Trans. Ind. Applicat. 33 1519

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