非軸対称トーラスプラズマにおける三次元MHD平衡・安定性と高エネルギー粒子
非轴对称环形等离子体中的三维 MHD 平衡/稳定性和高能粒子
基本信息
- 批准号:12680490
- 负责人:
- 金额:$ 2.24万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2000
- 资助国家:日本
- 起止时间:2000 至 2002
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In torus plasmas such as tokamaks and stellarators, investigation of the relation between MHD properties of the plasma and high energy particles like alpha particles is inevitable and important to realize a thermo-nuclear fusion reactor. In this study, following theoretical and numerical analyses are performed concerning the correlation between three-dimensional MHD equilibrium/stability and high energy particles in non-axisymmetric torus plasmas;1) Discrete eigenmodes existing in the spectral gap of Alfvan continuum are studied by using a global MHD stability code based on the stellarator approximation. It is found that the mode structure and frequency of the TAE modes are changed by the change of the rotational transform profile due to the finite plasma beta. The kinetic effect of high energy particles on the TAE mode is being studied perturbatively now.2) Both the local analysis based on the WKB approximation and the global analysis by using a three-dimensional ideal MHD stability c … More ode CAS3D are performed for the ballooning mode specific to the helical system. From the detailed comparison between the local and global analysis, the availability of the local analysis, in which the validity of the approximation is pointed out to be questionable, is verified. In order to estimate how the kinetic effect can change the ideal ballooning mode, local analyses solving the kinetic ballooning mode equations are done. We found that the finite Larmor radius (FLR) effect stabilizes short wave length modes and the compressibility is effective to stabilize long wave length modes.3) Development of a Monte-Carlo code has been started to estimate kinetic effects from the view point of particles as a final goal. At the first step, the neoclassical transport is being investigated for a plasma in a helical system. Heliotron J. Though it is difficult to argue the results quantitatively, suppression of the neoclassical transport due to the bumpy field component and the radial electric field, which is demonstrated in the previous studies, is verified qualitatively.4) In the analysis of a rippled tokamak, free-boundary MHD equilibria are obtained by considering discreteness of toroidal coils using a Biot-Savart code KMAG and a three-dimensional MHD equilibrium code VMEC. Finite beta dependence of the toroidal field ripple and its effect on the ripple loss of high energy particles are clarified. Less
在托卡马克、仿星器等环形等离子体中,研究等离子体的磁流体动力学特性与α粒子等高能粒子之间的关系,对于实现热核聚变反应堆是必不可少的。本文对非轴对称环面等离子体中三维MHD平衡/稳定性与高能粒子之间的关系进行了以下理论和数值分析:1)利用基于仿星器近似的MHD稳定性程序研究了Alfvan连续谱带隙中的离散本征模。结果表明,由于等离子体β的有限性,转动变换轮廓的变化改变了TAE模式的模式结构和频率。高能粒子对TAE模的动力学效应目前正在微扰研究中。2)基于WKB近似的局部分析和三维理想MHD稳定性的整体分析都表明,TAE模的动力学效应是由高能粒子的运动学效应引起的。 ...更多信息 对螺旋系统特有的气胀模式进行了CAS 3D分析。通过对局部分析和整体分析的详细比较,验证了局部分析的有效性,并指出局部分析的近似有效性是值得怀疑的。为了估计动力学效应如何改变理想的气球模式,局部分析解决动力学气球模式方程。我们发现,有限Larmor半径(FLR)效应稳定了短波长模式,而压缩性对稳定长波长模式是有效的。3)已经开始开发蒙特-卡罗程序,从粒子的角度作为最终目标来估计动力学效应。第一步,研究螺旋系统中等离子体的新经典输运。Heliotron J.虽然很难定量地论证结果,但定性地验证了由于颠簸场分量和径向电场引起的新经典输运的抑制,这在以前的研究中得到了证实。4)在波纹托卡马克的分析中,考虑环形线圈的离散性,用Biot-Savart程序KMAG和三个非线性有限元程序KMAG得到自由边界MHD平衡。三维MHD平衡程序VMEC。阐明了环向场涟漪的有限β依赖性及其对高能粒子涟漪损耗的影响。少
项目成果
期刊论文数量(15)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
山岸 統: "Global ballooning instabilities in a Heliotron J plasma"Physics of Plasma. 9巻、8号. 3429-3439 (2002)
Osamu Yamagishi:“Heliotron J 等离子体中的全局膨胀不稳定性”《等离子体物理学》第 9 卷,第 8 期。3429-3439 (2002)
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Y. Suzuki: "Finite β equilibria of Heliotron J plasmas"J. Plasma Fusion Res. SERIES. 5. 377-380 (2002)
Y. Suzuki:“Heliotron J 等离子体的有限 β 平衡”J. 5. 377-380 (2002)
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
山岸 統: "Kinetic effects on the ideal pressure-driven modes in an L=2 heliotron"Physics of Plasmas. (掲載予定).
Osamu Yamagishi:“L=2 日光管中理想压力驱动模式的动力学效应”《等离子体物理学》(待出版)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
O. Yamagishi: "Ballooning instabilities in a Heliotron J plasma"Physics of Plasma. 8-6. 2750-2759 (2001)
O. Yamagishi:“Heliotron J 等离子体中的气球不稳定性”等离子体物理学。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
O. Yamagishi: "Kinetic effects on the ideal pressure-driven modes in an L=2 heliotron"Physics of Plasma. (to be published).
O. Yamagishi:“L=2 日光管中理想压力驱动模式的动力学效应”等离子体物理学。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
NAKAMURA Yuji其他文献
NAKAMURA Yuji的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('NAKAMURA Yuji', 18)}}的其他基金
Developing a Language Assessment System in a CLIL-Based ELF Class
在基于 CLIL 的 ELF 课堂中开发语言评估系统
- 批准号:
17K03019 - 财政年份:2017
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
A Fire Whirl: Systematic Study For Structure and Stability Analysis
火旋:结构与稳定性分析的系统研究
- 批准号:
15K12472 - 财政年份:2015
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Developing an English Placement Test based on the CEFR
开发基于 CEFR 的英语分班测试
- 批准号:
24520646 - 财政年份:2012
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study of Changing Sports Administrative Governance, Sports Promotion Reforms
转变体育行政管理、体育促进改革研究
- 批准号:
22500565 - 财政年份:2010
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study on the "Steadiness" of Flame Spreading of Electric Wires : Verification of Dominant Factor for Melting and Gasification Processes during Cable Fires
电线火焰蔓延的“稳定性”研究:电缆火灾熔化和气化过程主导因素的验证
- 批准号:
21681022 - 财政年份:2009
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Young Scientists (A)
Prediction and analysis of physical process of fires in enclosed, low-pressured environment
封闭低压环境下火灾物理过程预测与分析
- 批准号:
19710140 - 财政年份:2007
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
Study of Governance Process about Games of the XXIX Olympiad Beijing 2008
北京2008年第二十九届奥运会治理流程研究
- 批准号:
19500523 - 财政年份:2007
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Analysis and Control of Spontaneous Currents in Rippled Tokamak Plasmas and Helical Plasmas
波纹托卡马克等离子体和螺旋等离子体自发电流的分析与控制
- 批准号:
17560729 - 财政年份:2005
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study of Network Formation among Stakeholders concerning Sports Industry Promotion in Australia
澳大利亚体育产业促进利益相关者网络形成研究
- 批准号:
16500392 - 财政年份:2004
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Three Dimensional MHD Equilibrium and Plasma Current Effects in Rippled Tokamak/Helical System Plasma
波纹托卡马克/螺旋系统等离子体中的三维 MHD 平衡和等离子体电流效应
- 批准号:
09680490 - 财政年份:1997
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
相似国自然基金
Tokamak中的高能量粒子驱动的模以及与磁流体不稳定性相互作用
- 批准号:11835010
- 批准年份:2018
- 资助金额:300.0 万元
- 项目类别:重点项目
Hall效应对Tokamak中撕裂模不稳定性演变和控制的影响
- 批准号:11775188
- 批准年份:2017
- 资助金额:94.0 万元
- 项目类别:面上项目
相似海外基金
Optimization of ultra-high power reconnection heating by tokamak merging experiments and simulations
通过托卡马克并合实验和模拟优化超高功率重联加热
- 批准号:
23KF0194 - 财政年份:2023
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for JSPS Fellows
Flexible Grids For Complex Tokamak Topologies
适用于复杂托卡马克拓扑的灵活网格
- 批准号:
2889360 - 财政年份:2023
- 资助金额:
$ 2.24万 - 项目类别:
Studentship
Using Computational Time-Dependent Ginzburg-Landau Theory to calculate & visualise the current density of high-field superconductors in fusion tokamak
使用计算瞬态Ginzburg-Landau理论进行计算
- 批准号:
2910484 - 财政年份:2023
- 资助金额:
$ 2.24万 - 项目类别:
Studentship
Determining the role of plasma-molecule interactions on Tokamak Power Exhaust
确定等离子体-分子相互作用对托卡马克功率消耗的作用
- 批准号:
2889666 - 财政年份:2023
- 资助金额:
$ 2.24万 - 项目类别:
Studentship
International joint experiment on self-organized two-fluid equilibrium in tokamak and RFP plasmas using all-in-one probes
使用一体化探针进行托卡马克和 RFP 等离子体自组织二流体平衡的国际联合实验
- 批准号:
23KK0053 - 财政年份:2023
- 资助金额:
$ 2.24万 - 项目类别:
Fund for the Promotion of Joint International Research (International Collaborative Research)
Studies of current profile formation in a lower-hybrid wave driven tokamak plasma
低混合波驱动托卡马克等离子体中电流分布形成的研究
- 批准号:
22K03573 - 财政年份:2022
- 资助金额:
$ 2.24万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Neutron diagnostics for the study of fast ion confinement and scenario developments in the high-field compact spherical tokamak ST40
用于研究高场紧凑球形托卡马克 ST40 中的快离子约束和场景开发的中子诊断
- 批准号:
2748053 - 财政年份:2022
- 资助金额:
$ 2.24万 - 项目类别:
Studentship
Advanced vertical control for tokamak reactors with double-null divertors
具有双零偏滤器的托卡马克反应堆的先进垂直控制
- 批准号:
2750468 - 财政年份:2022
- 资助金额:
$ 2.24万 - 项目类别:
Studentship
Electron heat transport in tokamak edge pedestals
托卡马克边缘基座中的电子热传输
- 批准号:
2752064 - 财政年份:2022
- 资助金额:
$ 2.24万 - 项目类别:
Studentship