北京航空航天大学学报 ›› 2015, Vol. 41 ›› Issue (9): 1758-1764.doi: 10.13700/j.bh.1001-5965.2014.0668

• 论文 • 上一篇    

MHD控制微电离等离子体射流

罗卫东1, 李锋1, 孙佰刚2, 赵凯1, 熊溢威1, 王昌胜1   

  1. 1. 北京航空航天大学 能源与动力工程学院, 北京 100191;
    2. 空军指挥学院, 北京 100097
  • 收稿日期:2014-10-28 出版日期:2015-09-20 发布日期:2015-09-29
  • 通讯作者: 李锋 (1966—),男,湖南资兴人,教授,lifeng1966@263.net,主要研究方向为等离子流动控制及推力矢量技术研究. E-mail:lifeng1966@263.net
  • 作者简介:罗卫东(1989—),男,硕士研究生,甘肃定西人,luo_wd@126.com
  • 基金资助:
    国家自然科学基金(90716025)

MHD control of weakly ionized plasma jet flows

LUO Weidong1, LI Feng1, SUN Baigang2, ZHAO Kai1, XIONG Yiwei1, WANG Changsheng1   

  1. 1. School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    2. Air Force Command College, Beijing 100097, China
  • Received:2014-10-28 Online:2015-09-20 Published:2015-09-29

摘要: 为了研究磁流体动力学(MHD)控制低温微电离等离子体射流,实现推力矢量的可行性,提出了一种基于MHD控制等离子体流动理论的试验方法,建立了种子(碱金属盐)诱导燃气电离的MHD流动控制试验台,研究了不同温度和不同磁场方向条件下射流偏转向量角,并用用户自定义函数(UDF)加载MHD模型求解三维N-S方程,探究了数值研究MHD控制的可行性.结果表明:向燃烧室内注入低电离能种子能够诱导燃气电离,形成磁流体,在磁场作用下实现推力矢量控制;等离子体射流偏转的数值模拟结果与试验结果在一定程度上是一致的,说明数值模拟MHD流动控制具有一定的可信度.

关键词: 磁流体动力学(MHD), 等离子体, 诱导电离, 推力矢量, 数值模拟

Abstract: In order to study the feasibility of the thrust vectoring using magnetohydrodynamic(MHD) control weakly ionized plasmas at low temperature, the experimental method based on the MHD control plasma flow theory was put forward. We established a MHD flow control experiment platform of seeds (alkali metal salts) induced gas ionization to research jet deflection vector angle under the condition of different temperature and different magnetic direction, and explored the feasibility of the numerical study MHD control by user defined function (UDF)loading the MHD model to solve the three-dimensional Navier-Stokes equations. It is demonstrated that injecting low ionization energy seed into the combustor can induce gas ionization, forming magnetic liquid and achieving thrust vector control under magnetic field; the numerical simulation results and experimental results of plasma flow deflection are consistent, meaning numerical simulation MHD flow control has a certain credibility.

Key words: magnetohydrodynamic(MHD), plasma, induced ionization, thrust vectoring, numerical simulation

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