电磁流体表面推进机理与效果分析

刘宗凯; 周本谋; 刘会星; 刘志刚; 黄翼飞

doi:10.7498/aps.60.084701

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摘要

电磁流体表面推进是在推进单元周围的导电流体中(海水、等离子体等)激励出电磁体积力,并利用电磁体积力的反作用力达到推进的目的. 基于电磁场和流体力学的基本控制方程,采用有限体积法对电磁流体表面推进的效果进行了数值模拟研究,分析了在不同姿态(攻角)和不同电磁体积力的作用下,航行器周围流场结构的变化规律和推力的变化特点.研究结果表明:沿航行器表面分布的电磁体积力可以有效地改变流体边界层的结构,并能向流体边界层传输动量与能量,从而使航行器获得所需的推力.流体对航行器的黏性阻力和压差阻力的影响随作用参数的增大而减弱

关键词:

作者及机构信息

1.
南京理工大学瞬态物理重点实验室,南京 210094

基金项目: 国家自然科学基金(批准号:10572061)和南京理工大学科研发展基金(批准号:XKF09058) 资助的课题.

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[9]	Lantzsch R, Gerbeth G 2007 J. Cryst. Growth 305 249
[10]	Zhang H, Fan B C, Chen Z H 2010 Comput. Fluids 39 1261
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[13]	Weier T 2003 Flow Turbul. Combus. 71 5
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[17]	Sam L P, Rao B N 1995 Acta Mech. 113 1
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[19]	Sathyakrishna M 2001 Acta Mech. 150 67
[20]	Dousset V, Alban P 2008 Phys. Fluids 20 017104
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[22]	Chen Y H, Fan B C, Chen Z H, Zhou B M 2008 Acta Phys. Sin. 57 648 (in Chinese)[陈耀慧、范宝春、陈志华、周本谋 2008 物理学报 57 648]
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[27]	Bityurin V A, Bocharov A N 2005 AIAA/CIRA International Space Planes and Hypersonics Systems and Technology (Reston:American Institute of Aeronautics and Astronautics) p3225
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[29]	Chen Z H, Fan B C, Zhou B M, Li H Z 2007 Chin. Phys. 16 1027
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[31]	Qiu X M, Tang D L, Sun A P, Liu W D, Zeng X J 2007 Chin. Phys. 16 186
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[33]	Yang J, Su W Y, Mao G W, Xia G Q 2006 Acta Phys. Sin. 55 6494 (in Chinese) [杨涓、苏纬仪、毛根旺、夏广庆 2006 物理学报 55 6494]
[34]	Zhang H, Fan B C, Chen Z H 2010 Eur. J. Mech. B 29 53
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[36]	Smolentsev S, Abdou M 2005 Appl. Math. Model. 29 215
[37]
[38]	Molokov S 2007 Magnetohydrodynamics Historical Evolution and Trends (Berlin: Springer) p295
[39]
[40]
[41]	Baaziz D 2009 Magnetohydrodynamics 45 281
[42]	Mutschke G, Gerbeth G, Albrecht T, Grundmann R 2006 Eur. J. Mech. B 25 137
[43]
[44]	Joel H F, Milovan P 2002 Computational Methods for Fluid Dynamics (Berlin: Springer-Verlag) pp157240
[45]
[46]
[47]	Ren Y X, Chen H X 2006 The Basics of Computational Fluid Dynamics (Beijing: Tsinghua University Press) p93 (in Chinese) [任玉新、陈海昕 2006 计算流体力学基础 (北京: 清华大学出版社) 第93页]

施引文献

[1]	Kim S J, Lee C M 2000 Exp. Fluids 28 252
[2]
[3]	Engel A, Friedrichs R 2002 Am. J. Phys. 70 4
[4]
[5]	Shatrov V, Gerbeth G 2007 Phys. Fluids 19 035109
[6]
[7]	McCamley M, Henoch C 2006 AIAA Flow Control Conference (Reston: American Institute of Aeronautics and Astronautics) p3191
[8]
[9]	Lantzsch R, Gerbeth G 2007 J. Cryst. Growth 305 249
[10]	Zhang H, Fan B C, Chen Z H 2010 Comput. Fluids 39 1261
[11]
[12]
[13]	Weier T 2003 Flow Turbul. Combus. 71 5
[14]
[15]	Weier T, Gerbeth G 2004 Eur. J. Mech. B 23 835
[16]
[17]	Sam L P, Rao B N 1995 Acta Mech. 113 1
[18]
[19]	Sathyakrishna M 2001 Acta Mech. 150 67
[20]	Dousset V, Alban P 2008 Phys. Fluids 20 017104
[21]
[22]	Chen Y H, Fan B C, Chen Z H, Zhou B M 2008 Acta Phys. Sin. 57 648 (in Chinese)[陈耀慧、范宝春、陈志华、周本谋 2008 物理学报 57 648]
[23]
[24]	Kim S J, Lee C M 2001 Fluid Dyn. Res. 29 47
[25]
[26]
[27]	Bityurin V A, Bocharov A N 2005 AIAA/CIRA International Space Planes and Hypersonics Systems and Technology (Reston:American Institute of Aeronautics and Astronautics) p3225
[28]
[29]	Chen Z H, Fan B C, Zhou B M, Li H Z 2007 Chin. Phys. 16 1027
[30]
[31]	Qiu X M, Tang D L, Sun A P, Liu W D, Zeng X J 2007 Chin. Phys. 16 186
[32]
[33]	Yang J, Su W Y, Mao G W, Xia G Q 2006 Acta Phys. Sin. 55 6494 (in Chinese) [杨涓、苏纬仪、毛根旺、夏广庆 2006 物理学报 55 6494]
[34]	Zhang H, Fan B C, Chen Z H 2010 Eur. J. Mech. B 29 53
[35]
[36]	Smolentsev S, Abdou M 2005 Appl. Math. Model. 29 215
[37]
[38]	Molokov S 2007 Magnetohydrodynamics Historical Evolution and Trends (Berlin: Springer) p295
[39]
[40]
[41]	Baaziz D 2009 Magnetohydrodynamics 45 281
[42]	Mutschke G, Gerbeth G, Albrecht T, Grundmann R 2006 Eur. J. Mech. B 25 137
[43]
[44]	Joel H F, Milovan P 2002 Computational Methods for Fluid Dynamics (Berlin: Springer-Verlag) pp157240
[45]
[46]
[47]	Ren Y X, Chen H X 2006 The Basics of Computational Fluid Dynamics (Beijing: Tsinghua University Press) p93 (in Chinese) [任玉新、陈海昕 2006 计算流体力学基础 (北京: 清华大学出版社) 第93页]

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电磁流体表面推进机理与效果分析

1. 南京理工大学瞬态物理重点实验室,南京 210094

基金项目:

国家自然科学基金(批准号:10572061)和南京理工大学科研发展基金(批准号:XKF09058) 资助的课题.

收稿日期: 2010-07-21

修回日期: 2010-10-13

刊出日期: 2011-04-05

摘要: 电磁流体表面推进是在推进单元周围的导电流体中(海水、等离子体等)激励出电磁体积力,并利用电磁体积力的反作用力达到推进的目的. 基于电磁场和流体力学的基本控制方程,采用有限体积法对电磁流体表面推进的效果进行了数值模拟研究,分析了在不同姿态(攻角)和不同电磁体积力的作用下,航行器周围流场结构的变化规律和推力的变化特点.研究结果表明:沿航行器表面分布的电磁体积力可以有效地改变流体边界层的结构,并能向流体边界层传输动量与能量,从而使航行器获得所需的推力.流体对航行器的黏性阻力和压差阻力的影响随作用参数的增大而减弱

关键词:

The analysis of effects and theories for electromagnetic hydrodynamics propulsion by surface

1.
Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China

Received Date: 21 July 2010

Accepted Date: 13 October 2010

Published Online: 05 April 2011

Abstract: The electromagnetic hydrodynamics(EMHD) propulsion by surface is performed through the reaction of electromagnetic body force, which is induced in conductive flow fluid (such as seawater, plasma and so on) around the propulsion unit. Based on the basic governing equations of electromagnetic field and hydrodynamics, by numerical simulations obtained by the finite volume method, the characteristics of flow field structures near the navigating and the strength variation of propulsion force are investigated at varying positions (the angle of attack). The results show that surface electromagnetic body force can modify the structure and the input energy of flow boundary layer, which enables the navigation to obtain the thrust. With the increase of interaction parameter the effect of viscous resistance and pressure drag to navigating decrease and the nonlinear relationship between propulsion coefficient and interaction parameter tends to be linear gradually. The strength of propulsion force depends mainly on the electromagnetic body force. The lift force can be improved effectively through the EMHD propulsion by surface at an angle of attack for navigating. The navigating surface can be designed as working space of propulsion units, which is of certain significance for optimizing the whole struction and improving the efficiency.

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