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| Numerical investigation of influence on acceleration performance of MHD flow |
| 1. Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, China; 2. Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi′an, Shaanxi 710038, China |
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Abstract The performance of MHD acceleration channel under different electrodes arrangement, intensity of applied magnetic field and channel expansion angle was numerically investigated. The results show that the outlet velocity and the maximum temperature inside the channel change slightly when the number of the electrodes is increased. The temperature inside the channel is decreased with the increasing of applied magnetic field intensity, and the outlet velocity is decreased when the magnetic field intensity is increased to 2 T. A greater expansion angle under constant applied potential can lead to decreasing in acceleration performance. Maintaining the total length of electrode, increasing the number of electrodes has slight effect on the acceleration performance of channel. Compared to the electrodes number, the external magnetic field intensity has greater impact on the acceleration performance. Therefore, by increasing the number of the external electrodes appropriately and setting reasonable magnetic field intensity， the best comprehensive performance of the acceleration channel can be obtained.
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Received: 18 August 2021
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| ［1］ |
吕浩宇, 李椿萱, 曹德一. 乘波构型飞行器磁流体进气道一体化概念设计［J］. 北京航空航天大学学报, 2008,34(10): 1130-1134.
|
|
LYU H Y,LEE C H,CAO D Y.Conceptual study on integrated design of magnetohydrodynamic bypass scramjet for a wave rider-based hypersonic vehicle［J］. Journal of Beijing University of Aeronautics and Astronautics, 2008,34(10): 1130-1134.(in Chinese)
|
| ［2］ |
吴其芬,李桦. 磁流体力学［M］. 长沙:国防科技大学出版社,2007.
|
| ［3］ |
PAGANUCCI F, AGOSTINI M, ANDRENUCCI M, et al. Further experimental evidences of the development of kink instabilities in MPD Thrusters［C］∥AIAA, 2005-4249.
|
| ［4］ |
RESLER E L, SEARS W R. The prospects for magneto-aerodynamics［J］. Journal of the Aerospace Sciences, 2012, 25(4): 235-245, 258.
|
| ［5］ |
MACHERET S, MILES R, NELSON G. Feasibility study of a hybrid MHD／radiatively driven facility for hypersonic ground testing［C］∥AIAA,1997-2429.
|
| ［6］ |
MACIEL E. Magnetic field in reentry flows in 2D: ele-ven species［J］. Journal of Advances in Mathematics and Computer Science, 2017, 24(6):1-36.
|
| ［7］ |
ADAMOVICH I, RICH J, NELSON G. Feasibility stu-dy of MHD acceleration of unseeded and seeded air flows［C］∥AIAA,1996-2347.
|
| ［8］ |
BOGDANOFF D, MEHTA U. Experimental demonstration of MHD acceleration［C］∥AIAA, 2003-4285.
|
| ［9］ |
ASANO H, KAMINAGA S, YAMASAKI H. Effect of non-uniform discharge on performance of MHD accelerator with non-equilibrium plasma［C］∥AIAA, 2006-9692.
|
| ［10］ |
SUKARSAN A M. Analysis of applied magnetic field and electrical current due to electrical efficiency of MHD accelerator［J］. European Physical Journal Applied Physics, 2009, doi. 10.1051／epjap／2009172.
|
| ［11］ |
KUZOVATOV I, MINAKOV A. The hall effect in-fluence on current layer structure in MHD accelerator channel［J］. J Sib Fed Uni Math Phys, 2011, 4(4): 505-518.
|
| ［12］ |
ANWARI M, QAZI H, SUKARSAN H, et al. Numerical analysis of MHD accelerator with non-equilibrium air plasma［J］. Plasma Science and Technology, 2012, 14(12):1110-1115.
|
| ［13］ |
张杨,张百灵,李益文,等.不同磁感应强度下的磁流体加速实验研究［J］.空军工程大学学报(自然科学版),2013,14(3):23-27.
|
|
ZHANG Y, ZHANG B L, LI Y W, et al. Experimental investigation on MHD acceleration under different conditions of magnetic induction［J］. Journal of Air Force Engineering University (Natural Science Edition),2013,14(3):23-27. (in Chinese)
|
| ［14］ |
LI L, LU X, ZHU G, et al. Effect of magnetic field configuration on faraday MHD accelerator［J］. IOP Conference Series Earth and Environmental Science, doi: 10.1088／1755-1315／431／1／012040.
|
| ［15］ |
PROMSON S, SUGAWARA N, TAKAHASHI K, et al. Numerical study of current distribution and thrust in dia-gonal pulsed magnetohydrodynamic accelerator［J］. Transactions of the Japan Society for Aeronautical and Space Sciences, 2018, 61 (6), 231-237.
|
| ［16］ |
李益文,樊昊,张百灵,等.超声速非平衡电离磁流体流动控制试验和数值模拟［J］.航空学报,2017,38(3):151-160.
|
|
LI Y W, FAN H, ZHANG B L, et al. Experiment and numerical simulation of supersonic non-equilibrium io-nized magnetic fluid flow control［J］. Acta Aeronautica et Astronautica Sinica, 2017,38(3):151-160. (in Chinese)
|
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2022, Vol. 43 
