| 一种螺旋型Blumlein线的阻抗特性分析 |
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| 引用本文： | 吕俊明,胡宗民,王春,姜宗林.一种螺旋型Blumlein线的阻抗特性分析[J].强激光与粒子束,2009,21(9):0. |
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| 作者姓名： | 吕俊明 胡宗民 王春 姜宗林 |
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| 作者单位： | 1.西北核技术研究所, 西安 71 0024 |
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| 基金项目： | 国家高技术发展计划项目与大连化学物理研究所联合基金 |
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| 摘 要： | 提出了一种结构紧凑的长脉冲发生器，该发生器的螺旋型Blumlein线由内导体（含磁体）、螺旋型中筒和外导体（含磁体）构成，该结构实现了螺旋型Blumlein线和Tesla变压器的一体化。通过对螺旋型Blumlein线的波传输过程分析，给出了慢波系数、开关闭合电流、用于描述形成线闭合开关处界面上波行为的变量因子等参数的计算公式。采用PIC软件对螺旋型Blumlein线的部分波传输过程进行数值模拟，慢波系数等参数的模拟值与计算值基本相符。进行了恒阻抗负载下螺旋型Blumlein线的原理性实验，实验得到的负载波形与编程计算得到的波形基本吻合。
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| 关 键 词： | 螺旋线 Blumlein线 Tesla变压器 长脉冲 脉冲功率 负载阻抗 |
| 收稿时间： | 1900-01-01; |
Numerical study on performance of COIL with supersonic jet in supersonic section |
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| Lü Junming,Hu Zongmin,Wang Chun,Jiang Zonglin.Numerical study on performance of COIL with supersonic jet in supersonic section[J].High Power Laser and Particle Beams,2009,21(9):0. |
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| Authors: | Lü Junming Hu Zongmin Wang Chun Jiang Zonglin |
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| Affiliation: | 1.Northwest Institute of Nuclear Technology,P.O.Box 69-13,Xi’an 710024,China |
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| Abstract: | There are strong interactions or couplings among multi-fields in the mixing nozzle of the chemical oxygen-iodine laser(COIL), such as gas-dynamics, chemical reaction kinetics and optics. In this paper, three-dimensional computational flow dynamic technology was applied on the research assessment device improvement chemical laser model by solving the laminar Navier-Stokes equations and transportation equations to study iodine molecule dissociation rate, iodine atom pumping rate, singlet oxygen yield rate and small signal gain distributions. The simulation was done in the condition of that the secondary flow jet would take place in the supersonic section of the nozzle. The detailed flow field and distribution of yield, dissociation and pumping rates were investigated. The distribution charac |
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| Keywords: | jet in supersonic section gain mixing efficiency total pressure recovery |
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