Study of 3D effect on MHD stability in high-beta heliotron plasma

高β日光管等离子体中MHD稳定性的3D效应研究

• 批准号: 22760661
• 负责人: NARUSHIMA Yoshiro
• 金额: $ 2.41万
• 依托单位: National Institute for Fusion Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22760661/
• 关键词: 磁気島; ヘリオトロンプラズマ; 3 次元効果; 共鳴摂動磁場; ヘリオトロン; 核融合; 電磁流体力学; MHD不安定性; ポロイダルフロー; 電磁流体力学安定性; 3次元効果; 高β

The 3D effect by the externally imposed resonant magnetic perturbation field in LHD plasma has been studied. It has found that there is strong correlation between the dynamics of magnetic island structure and plasma flow. The behavior of the magnetic island in LHD can be divided by plasma beta and collisionality. These parameters, however, do not affect island dynamics directly, which implies the existence of the hidden parameter. The experimental fact has been found that the poloidal flow increases (decreases) prior to the magnetic island healing (growth).

研究了LHD等离子体中外加共振磁扰动场的三维效应。研究发现，磁岛结构的动力学行为与等离子体流动之间存在着很强的相关性。磁岛的行为可以用等离子体β和碰撞性来区分。然而，这些参数并不直接影响岛屿动力学，这意味着隐藏参数的存在。实验结果表明，在磁岛愈合（生长）之前，极向流增加（减少）。

项目成果

Invited talk 16th Workshop on MHD Stability Control

第16届MHD稳定性控制研讨会特邀报告

• 发表时间: 2011
• 作者: N.Hayashi;et al.;Y. Narushima
• 通讯作者: Y. Narushima

デタッチプラズマにおけるプラズマ応答磁場の振舞

分离等离子体中等离子体响应磁场的行为

• 发表时间: 2012
• 作者: 成嶋吉朗;小林政弘;秋山毅;榊原悟
• 通讯作者: 榊原悟

Experimental Study of Poloidal Flow Effect on Magnetic Island Dynamics in LHD and TJ-II

LHD和TJ-II中极向流对磁岛动力学影响的实验研究

• 发表时间: 2010
• 作者: Y. Narushima;F. Castejon;S. Sakakibara
• 通讯作者: S. Sakakibara

Correlation between detached plasmas and plasma response field

分离等离子体与等离子体响应场之间的相关性

• 发表时间: 2012
• 作者: Y. Narushima;M. Kobayashi;T Akiyama;S. Sakakibara;S. Masuzaki;N. Ashikawa;N. Ohno
• 通讯作者: N. Ohno

Experimental observation of hysteresis of magnetic island dynamics during change of poloidal flow in a helical plasma

螺旋等离子体极向流变化过程中磁岛动力学滞后现象的实验观察

• 发表时间: 2011
• 作者: N Miyato;B D Scott;M Yagi;Y.Narushima
• 通讯作者: Y.Narushima