A theoretical study of magnetohydrodynamic instabilities in non-rotating and rotating magnetospheric plasmas
非旋转和旋转磁层等离子体中磁流体动力学不稳定性的理论研究
基本信息
- 批准号:20540436
- 负责人:
- 金额:$ 1.66万
- 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:2008
- 资助国家:日本
- 起止时间:2008 至 2012
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
A new magnetospheric energy principle was constructed for spherically symmetric monopolar magnetospheres with magnetic field lines extending to infinity. By using eikonal assumption, I showed the existence of ionosphere-driven magnetohydrodynamic (MHD) instabilities for spherically symmetric monopolar magnetospheres and for magnetospheres with closed field lines. For an arbitrary closed magnetospheric configuration, which includes a dipole field, a general stability criterion was obtained for pressure-driven interchange instability. A nonideal MHD eigenmode equation was derived for a velocity shear instability, which is driven by a shear in the ion diamagnetic drift velocity in sheared magnetic fields, and a general stability criterion was obtained.
针对磁力线延伸至无穷远的球对称单极磁层,构建了新的磁层能量原理。通过使用 eikonal 假设,我证明了球对称单极磁层和具有闭合磁力线的磁层存在电离层驱动的磁流体动力学 (MHD) 不稳定性。对于包括偶极场的任意闭合磁层结构,获得了压力驱动互换不稳定性的一般稳定性准则。推导了由剪切磁场中离子反磁漂移速度的剪切驱动的速度剪切不稳定性的非理想MHD本征模方程,并获得了一般的稳定性判据。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
内部磁気圏における電離層駆動交換型不安定の圧力駆動交換型不安定に対する優位性
电离层驱动的交换不稳定性相对于内磁层压力驱动的交换不稳定性的优势
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:三浦彰
- 通讯作者:三浦彰
電離層駆動の磁気圏交換型不安定に伴う磁気圏から中性大気に至る磁力線形状
由于电离层驱动的磁层交换不稳定性,从磁层到中性大气的磁场线形状
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:三浦彰
- 通讯作者:三浦彰
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MIURA Akira其他文献
Phase transition, magnetic, and electronic properties of CeOInS2
CeOInS<sub>2</sub>的相变、磁性和电子特性
- DOI:
10.2109/jcersj2.20205 - 发表时间:
2021 - 期刊:
- 影响因子:1.1
- 作者:
ITO Hiroaki;MIURA Akira;GOTO Yosuke;MIZUGUCHI Yoshikazu;MORIYOSHI Chikako;KUROIWA Yoshihiro;ROSERO;TADANAGA Kiyoharu - 通讯作者:
TADANAGA Kiyoharu
Phase transition, magnetic, and electronic properties of CeOInS2
CeOInS<sub>2</sub>的相变、磁性和电子特性
- DOI:
10.2109/jcersj2.20205 - 发表时间:
2021 - 期刊:
- 影响因子:1.1
- 作者:
ITO Hiroaki;MIURA Akira;GOTO Yosuke;MIZUGUCHI Yoshikazu;MORIYOSHI Chikako;KUROIWA Yoshihiro;ROSERO;TADANAGA Kiyoharu - 通讯作者:
TADANAGA Kiyoharu
Phase transition, magnetic, and electronic properties of CeOInS2
CeOInS<sub>2</sub>的相变、磁性和电子特性
- DOI:
10.2109/jcersj2.20205 - 发表时间:
2021 - 期刊:
- 影响因子:1.1
- 作者:
ITO Hiroaki;MIURA Akira;GOTO Yosuke;MIZUGUCHI Yoshikazu;MORIYOSHI Chikako;KUROIWA Yoshihiro;ROSERO;TADANAGA Kiyoharu - 通讯作者:
TADANAGA Kiyoharu
MIURA Akira的其他文献
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{{ truncateString('MIURA Akira', 18)}}的其他基金
Low-temperature synthesis of oxynitrides for development of new functional materials
低温合成氮氧化物开发新型功能材料
- 批准号:
17H04950 - 财政年份:2017
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Young Scientists (A)
Development of new low-temperature synthesis method for nitrides
氮化物低温合成新方法的开发
- 批准号:
25820330 - 财政年份:2013
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
A Study on Building Systems of Browsing and Analyzing Multi-Dimensional Space Scientific Data for Educational Outreach.
为教育推广构建多维空间科学数据浏览和分析系统的研究。
- 批准号:
22500958 - 财政年份:2010
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
The mechanisms of the anti-hypertensive benefits of exercise in relation to the link between acute and chronic effects
运动抗高血压作用与急性和慢性效应之间联系的机制
- 批准号:
21500689 - 财政年份:2009
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
The relation of leg venous function and structure to orthostatic hypotension in humans
腿部静脉功能和结构与人体直立性低血压的关系
- 批准号:
18500554 - 财政年份:2006
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of integrated Analysis System for Space and Astronomical Science combined with Mass Database
结合海量数据库的空间天文科学综合分析系统开发
- 批准号:
16300037 - 财政年份:2004
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study of magnetohydrodynamic instabilities in high-β plasmas in the magnetosphere by theory and modelling
通过理论和模型研究磁层高β等离子体中的磁流体动力学不稳定性
- 批准号:
14540414 - 财政年份:2002
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
THE EFFECT OF MUSCLE TENSION AND BODY POSITION ON LEG BLOOD FLOW
肌肉张力和身体姿势对腿部血流的影响
- 批准号:
13680041 - 财政年份:2001
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Modeling of the Hydromagnetic Instability
磁流体不稳定性建模
- 批准号:
06640566 - 财政年份:1994
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Modeling of the Magnetohydrodynamic Instability
磁流体动力学不稳定性的建模
- 批准号:
03640390 - 财政年份:1991
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
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