Investigations on Confinement Improvement by Supressing Microscopic Instabilities in Toroidal Plasmas
通过抑制环形等离子体中微观不稳定性来改善约束的研究
基本信息
- 批准号:02808003
- 负责人:
- 金额:$ 1.41万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1990
- 资助国家:日本
- 起止时间:1990 至 1991
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The objective of this research is to develop the method to reduce the anomalous transport. Based on the working hypothesis that the cross field transport is driven by microscopic instabilities, we study the way to reduce the transport coefficient by suppressing the microinstabilities.By this research project, we have obtained a new theoretical result on the anomalous transport in Torsatron/Heliotron configurations. The theory includes the roles of the current diffusivity. This new model formula, though appricable only to the systems with the magnetic hill, explains the majority of the experimental observations on confinement in such devices. If further verification will be gained through future examination with experiments, this method will give a guiding principle to predict a cofiguration, in which anomalous transport is reduced. In tokamaks, it has been shown that the toroidicity is a critical element to cause the anomalous transport. The theoretical model can be extended to systems with the magnetic well, by employing the ballooning formalism. The extension and generalization are left for the future study.By studying the current diffusicity, we have obtained a new phsics picture of the disruptive phenomena. The mechanism of the accelerated growth of the global instabilities is presented. The magnetic braiding by the global instabilities gives rise to the enhanced current diffusivity, which then increases the growth rate of the mode.In summary, this research project has shown a considerable progress in the original programme as well as in the unexpected area of the research.
本研究的目的是开发减少异常输运的方法。基于微观不稳定性驱动跨场输运的工作假设,研究了通过抑制微观不稳定性来降低输运系数的方法。通过本项目的研究,我们获得了Torsatron/Heliotron组态中异常输运的一个新的理论结果。该理论包括电流扩散率的作用。这个新的模型公式虽然只适用于具有磁丘的系统,但却解释了这类装置中关于约束的大多数实验观察。如果将来的实验检验能得到进一步的验证,该方法将为预测一种减少异常输运的构型提供指导原则。在托卡马克中,已证明环向度是引起异常输运的关键因素。利用膨胀形式理论,可以将理论模型推广到具有磁性井的系统。推广和推广将留给未来的研究。通过对电流扩散率的研究,我们获得了一幅新的破坏现象的物理图景。提出了全球不稳定加速增长的机理。由全局不稳定性引起的磁编织引起了电流扩散率的增强,从而提高了模态的增长率。总而言之,这个研究项目在原来的方案和意想不到的研究领域都取得了相当大的进展。
项目成果
期刊论文数量(25)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
A.J.Lichtenberg,K.Itoh,S.-I.Itoh and A.Fukuyama: "Role of Stochasticity in Sawtooth Oscillation" Nucl.Fusion. 32. (1992)
A.J.Lichtenberg、K.Itoh、S.-I.Itoh 和 A.Fukuyama:“随机性在锯齿振荡中的作用”Nucl.Fusion。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
長崎 白伸: "Magnetic Field Stwcture near Plasma Boundary in Helical Systems and Diverfor Tokamaks" Japanese J.Apple Phys.29. 1336-1344 (1990)
Hakunobu Nagasaki:“螺旋系统和 Diverfor Tokamaks 中等离子体边界附近的磁场结构”Japan J.Apple Phys.29 (1990)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
K. Itoh, H. Sanuki, J. Todoroki, T. Kamimura, S. -I. Itoh, A. Fukuyama and K. Hanatani: "Loss cone Region in Toroidal Helical Systems." Phys. Fluids B. 3. 1294-1296 (1991)
K. Itoh、H. Sanuki、J. Todoroki、T. Kamimura、S. -I。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
東井 和夫: "Role of Edge Magnetic Shear on the Limiter Hーmode Transition of the JlPP TーIIU Tokamak" Phys Rev.Lett.64. 1895-1898 (1990)
Kazuo Toi:“边缘磁剪切对 JlPP T-IIU 托卡马克限制器 H 模式转变的作用”Phys Rev.Lett.64 (1990)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
伊藤 早苗: "改善モ-ドとその閉じ込め改善度への評価" 核融合研究. 63. 356-379 (1990)
伊藤早苗:“约束力改善程度的改善模式及其评价” Fusion Research 63. 356-379 (1990)。
- 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 }}
ITOH Kimitaka其他文献
e-Learning受講者の登録顔情報の逐次更新によるリアルタイム顔認証
通过顺序更新电子学习参与者注册的面部信息进行实时面部识别
- DOI:
- 发表时间:
2015 - 期刊:
- 影响因子:0
- 作者:
HASAMADA Kazunobu;KOSUGA Yusuke;KIN Fumiyoshi;INAGAKI Sigeru;NAGASHIMA Yoshihiko;KOBAYASHI Tatsuya;SASAKI Makoto;KASUYA Naohiro;YAMASAKI Kotaro;ITOH Sanae-I.;ITOH Kimitaka;FUJISAWA Akihide;川又泰介,藤森進,赤倉貴子 - 通讯作者:
川又泰介,藤森進,赤倉貴子
大電力パルススパッタリングにおける放電特性のガス種依存性
高功率脉冲溅射放电特性的气体类型依赖性
- DOI:
- 发表时间:
2023 - 期刊:
- 影响因子:0
- 作者:
ARAKAWA Hiroyuki;SASAKI Makoto;INAGAKI Shigeru;LESUR Maxime;KOSUGA Yusuke;KOBAYASHI Tatsuya;KIN Fumiyoshi;YAMADA Takuma;NAGASHIMA Yoshihiko;FUJISAWA Akihide;ITOH Kimitaka;佐藤太進,高橋克幸,向川政治,高木浩一 - 通讯作者:
佐藤太進,高橋克幸,向川政治,高木浩一
Nonlinear Coupling of Drift Waves and High Frequency Fluctuation on PANTA
PANTA上漂移波与高频涨落的非线性耦合
- DOI:
10.1585/pfr.12.1201034 - 发表时间:
2017 - 期刊:
- 影响因子:0.8
- 作者:
HASAMADA Kazunobu;KOSUGA Yusuke;KIN Fumiyoshi;INAGAKI Sigeru;NAGASHIMA Yoshihiko;KOBAYASHI Tatsuya;SASAKI Makoto;KASUYA Naohiro;YAMASAKI Kotaro;ITOH Sanae-I.;ITOH Kimitaka;FUJISAWA Akihide - 通讯作者:
FUJISAWA Akihide
Formation Process of a Solitary Vortex in a Zonal Flow - Drift-Wave Dynamics
纬向流中孤立涡的形成过程 - 漂移波动力学
- DOI:
10.1585/pfr.17.1301106 - 发表时间:
2022 - 期刊:
- 影响因子:0.8
- 作者:
ARAKAWA Hiroyuki;SASAKI Makoto;INAGAKI Shigeru;LESUR Maxime;KOSUGA Yusuke;KOBAYASHI Tatsuya;KIN Fumiyoshi;YAMADA Takuma;NAGASHIMA Yoshihiko;FUJISAWA Akihide;ITOH Kimitaka - 通讯作者:
ITOH Kimitaka
Effects of sawtooth heat pulses on edge flows and turbulence in a tokamak plasma
锯齿热脉冲对托卡马克等离子体边缘流和湍流的影响
- DOI:
10.1088/2058-6272/ac7c60 - 发表时间:
2022 - 期刊:
- 影响因子:1.7
- 作者:
ZHAO Kaijun;NAGASHIMA Yoshihiko;GUO Zhibin;DIAMOND Patrick H;DONG Jiaqi;YAN Longwen;ITOH Kimitaka;et al. - 通讯作者:
et al.
ITOH Kimitaka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('ITOH Kimitaka', 18)}}的其他基金
Physics Modelling for Abrupt Events in Magnetized Plasmas
磁化等离子体中突发事件的物理建模
- 批准号:
16K13923 - 财政年份:2016
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Theoretical study of transport process in fusion ignition plasmas
聚变点火等离子体输运过程的理论研究
- 批准号:
19360418 - 财政年份:2007
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Foundations for the theory of transport in thermonuclear fusion plasmas
热核聚变等离子体输运理论基础
- 批准号:
15360495 - 财政年份:2003
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study of Improved Confinement in Helical Plasmas
改进螺旋等离子体约束的研究
- 批准号:
11680501 - 财政年份:1999
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Research of Disruptive Instability based on Anomalous Transport
基于反常输运的破坏性不稳定性研究
- 批准号:
07680545 - 财政年份:1995
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
MECHANISM FOR GENERATION AND RELAXATION OF DISRUPTIONS BASED ON NAMOLAOUS TRANSPORT
基于纳莫拉乌斯运输的干扰产生和缓解机制
- 批准号:
04808002 - 财政年份:1992
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
相似海外基金
Global Development of Toroidal Plasma Peripheral Radiative Cooling Method Using Magnetic Field Topology and Generalization of its Stabilization Mechanism
利用磁场拓扑的环形等离子体外围辐射冷却方法的全球发展及其稳定机制的推广
- 批准号:
22KK0039 - 财政年份:2022
- 资助金额:
$ 1.41万 - 项目类别:
Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
Development of a new method for edge plasma control using scrape-off-laier in a toroidal plasma
开发一种在环形等离子体中使用刮离层进行边缘等离子体控制的新方法
- 批准号:
26630476 - 财政年份:2014
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Verification of role of neoclassical poloidal viscosity on transition to improved confinement mode in toroidal plasma
验证新古典极向粘度对环形等离子体向改进约束模式过渡的作用
- 批准号:
23760812 - 财政年份:2011
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
Collapse phenomena of toroidal plasma by nonlinear MHD simulation
非线性 MHD 模拟环形等离子体的塌缩现象
- 批准号:
20760583 - 财政年份:2008
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
Effect of Resonant Magnetic Perturbation on MHD Instability in Toroidal Plasma
共振磁扰动对环形等离子体 MHD 不稳定性的影响
- 批准号:
19360419 - 财政年份:2007
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Analysis of Turbulence and Structure in toroidal plasma using Personal Computer Cluster
使用个人计算机集群分析环形等离子体中的湍流和结构
- 批准号:
18360447 - 财政年份:2006
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Simulation Study of Spontaneous Flow Formation in toroidal Plasma System with Open Field Region
开放场环形等离子体系统中自发流形成的模拟研究
- 批准号:
17560738 - 财政年份:2005
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Existence and Stability of a Model for Three-Dimensional Toroidal Plasma Equilibria
三维环形等离子体平衡模型的存在性和稳定性
- 批准号:
DP0452728 - 财政年份:2004
- 资助金额:
$ 1.41万 - 项目类别:
Discovery Projects
Studies of structure and dynamics of toroidal plasma using twin heavy ion beam probes
使用双重离子束探针研究环形等离子体的结构和动力学
- 批准号:
15360497 - 财政年份:2003
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Structure Change in Toroidal Plasma Due to Nonlinear Evolution of Pressure Driven Mode
压力驱动模式的非线性演化导致环形等离子体的结构变化
- 批准号:
13680572 - 财政年份:2001
- 资助金额:
$ 1.41万 - 项目类别:
Grant-in-Aid for Scientific Research (C)