| 基于Monte-Carlo方法模拟分析NBI真空压力分布的研究 |
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| 引用本文： | 熊模华,朱武,胡纯栋,谢远来,刘智民. 基于Monte-Carlo方法模拟分析NBI真空压力分布的研究[J]. 真空, 2010, 47(2) |
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| 作者姓名： | 熊模华 朱武 胡纯栋 谢远来 刘智民 |
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| 作者单位： | 1. 合肥工业大学机械与汽车工程学院,安徽,合肥,230009
2. 中国科学院等离子体物理研究所,安徽,合肥,230031 |
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| 摘 要： | 中性束注入装置是产生高能中性粒子以加热托卡马克等离子体的装置。NBI真空压力分布是影响中性束传输效率特别是再电离损失的关键因素之一。研究分析了超导托卡马克实验装置中NBI的工作原理和结构特点,建立了EAST NBI的几何与物理模型,利用Monte-Carlo方法建立NBI主真空室内分子运动及碰撞的数学模型,并运用Matlab软件编程实现对NBI主真空室内真空压力分布的模拟计算,得到主真空室内三段区域在进气过程中的气体分子三维分布图和平均压力变化曲线。研究可为EAST NBI主真空室内的中性化室、偏转系统、低温抽气系统的结构设计提供指导。
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| 关 键 词： | 中性束注入装置 模拟计算 压力分布 结构设计 |
Simulative analysis based on Monte Carlo method for vacuum pressure distribution in NBI |
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| XIONG Mu-hua,ZHU Wu,HU Chun-dong,XIE Yuan-lai,LIU Zhi-min. Simulative analysis based on Monte Carlo method for vacuum pressure distribution in NBI[J]. Vacuum(China), 2010, 47(2) |
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| Authors: | XIONG Mu-hua ZHU Wu HU Chun-dong XIE Yuan-lai LIU Zhi-min |
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| Affiliation: | XIONG Mu-hua1,ZHU Wu1,HU Chun-dong2,XIE Yuan-lai2,LIU Zhi-min2(1.School of Mechanical , Automobile Engineering,Hefei University of Technology,Hefei,230009,China,2.Institute of Plasma Physics,the Chinese Academy of Sciences,Hefei 230031,China) |
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| Abstract: | Neutral Beam Injector(NBI) is used to generate high-energy neutral particles so as to heat the tokamak plasma.The vacuum pressure distribution in NBI is one of the key influcing factors on the efficiency of neutral beam transmission especially the loss due to reionization during the transmission.Analyzing the operating principle and constructional characteristics of NBI applied in the Experimental Advanced Superconducting Tokamak(EAST),the relevant geometric and physical models were developed.Then,based on ... |
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| Keywords: | neutral beam injector simulative caculation pressure distribution constructional design |
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