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磁驱动平面飞片的一维磁流体力学计算
引用本文:WANG Gang-hua,孙承纬,ZHAO Jian-heng,胡熙静,JIANG Ji-hao. 磁驱动平面飞片的一维磁流体力学计算[J]. 爆炸与冲击, 2008, 28(3): 261-264. DOI: 10.11883/1001-1455(2008)03-0261-04
作者姓名:WANG Gang-hua  孙承纬  ZHAO Jian-heng  胡熙静  JIANG Ji-hao
作者单位:1.中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,四川 绵阳 621900;
基金项目:国家自然科学基金,中国工程物理研究院基金,中国工程物理研究院基金,四川省青年基金
摘    要:建立了电磁驱动平面飞片的一维磁流体力学模型,考虑了焦耳加热的影响,并对Sandia实验室Z装置上开展的一个实验进行了模拟计算,与实验结果的比较表明,计算给出的样品自由面速度历史曲线与实验VISAR测量的结果基本一致。还分析了焦耳加热对飞片的烧蚀情况,并分析了磁场穿透深度,给出了不同厚度飞片自由面的速度历史曲线。

关 键 词:流体力学   自由面速度   一维数值计算   高速飞片   压缩波

One-dimensional, magnetohydrodynamic simulations of magnetically driven flyer plates
WANG Gang-hua,SUN Cheng-wei,ZHAO Jian-heng,HU Xi-jing,JIANG Ji-hao. One-dimensional, magnetohydrodynamic simulations of magnetically driven flyer plates[J]. Explosion and Shock Waves, 2008, 28(3): 261-264. DOI: 10.11883/1001-1455(2008)03-0261-04
Authors:WANG Gang-hua  SUN Cheng-wei  ZHAO Jian-heng  HU Xi-jing  JIANG Ji-hao
Affiliation:1.Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics,China Academy of Engineering Physics, Mianyang 621900, Sichuan, China;2.Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China
Abstract:A one-dimensional, magnetohydrodynamic model, in which the Ohmic heating is considered, was proposed to numerically calculate the experiment Z-452 carried out on the Z machine at Sandia National Laboratories. The computed free-surface velocities of the flyer plates agree well with the experimental records by VISAR. The paper also analyzes the ablation induced by the Ohmic heating in the flyer plates and the penetration of magnetic field. The obtained velocity, pressure history curves are helpful to understand the physical mechanism of magnetically accelerated plane flyers.
Keywords:fluid mechanics  free-surface velocity  1D numerical simulation  high speed flyer  compresion wave
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