北京航空航天大学学报 ›› 2005, Vol. 31 ›› Issue (08): 893-898.

• 论文 • 上一篇    下一篇

超声速磁流体管道流动的数值模拟

许振宇, 李椿萱   

  1. 北京航空航天大学 航空科学与工程学院, 北京 100083
  • 收稿日期:2004-03-26 出版日期:2005-08-31 发布日期:2010-09-20
  • 作者简介:许振宇(1981-),男,江西黎川人,硕士生, xuzyu@163.com.

Numerical simulation of supersonic MHD channel flows

Xu Zhengyu, Lee Chunhian   

  1. School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2004-03-26 Online:2005-08-31 Published:2010-09-20

摘要: 应用可同时适用于描述磁流体MHD (MagnetoHydroDynamic)强化超燃冲压发动机磁流体发电器与磁流体加速器的,包含磁流体N-S(Navier-Stokes)方程与磁感应方程的可压缩磁流体方程组对超声速磁流体管道流动进行了数值模拟研究,以验证本项工作所提出的对2组方程进行交替迭代的分裂式算法.给出了算例的计算结果,并与无磁场及恒磁场下相同管道的流动计算结果进行了对比分析.

Abstract: A compressible MHD (magnetohydrodynamic) model composed of MHD N-S (navier-stokes) equations and magnetic induction equations was proposed for analyzing the magnetohydrodynamic characteristics in MHD generator and MHD accelerator channels of MPC (magneto-plasma-chemical) propulsion system. A splitting algorithm based on an alternative iteration was developed for solving the two sets of equations. As a test case, a supersonic MHD flow in a square duct was simulated. The numerical results were compared with the results computed by solving the classical N-S equations for the perfect gas flow, together with the results computed utilizing the degenerate MHD N-S equations for the same channel flow with constant applied magnetic field. The thermo-electro-magnetic performances of the test cases with constant and variable applied fields were then discussed.

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