权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Rotation and Transport of Torus Plasma with External Momentum Sources

具有外部动量源的环面等离子体的旋转和输运

基本信息

批准号：
01580006
负责人：
OKAMOTO Masao
金额：
$ 1.41万
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 General Scientific Research (C)
财政年份：
1989
资助国家：
日本
起止时间：
1989 至 1990
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01580006/
关键词：
Torus plasma Plasma transport Plasma rotation Helical system Bootstrap current Field reversed configuration Monte Carlo code Beam driven current 中性粒子入射加熱電子ル-トブ-ストラップ電流

项目摘要

The purpose of this research was to clarify the mechanism of plasma rotation and it's relation with plasma transport in toroidal plasmas with external momentum sources. The research has been carried out emphasizing the subjects : 1) rotation mechanism of a plasma in a field reversed configuration, 2) beam driven current in a plasma of helical systems, 3) neoclassical formulation for parallel currents and plasma rotation (plasma flow, or radial electric field), 4) determination of radial electric field in the presence of fast ion losses.The main results obtained for these two years are as follows :(1) The rotation equation for a plasma in a field reversed configuration has been obtained and the relation between the rotation and the plasma transport has been clarified.(2) Neoclassical currents and the plasma rotation have been formulated for 3 dimensional geometry.(3) Expressions for beam driven current and electric conductivity are the same between tokamaks and helical systems, while the bootstrap current and plasma rotation have strong dependences on the magnetic field configurations.(4) The equation which determines the rotation or radial electric field has been extended to the case including high energy particle losses, charge exchange losses, and external momentum soarces.(5) A Monte Carle code for ICRF minority heating has been developed. To determine the radial electric field in the presence of fast ion losses based on the rotation equation derived here, this Monte Carlo code was used to determine the fast ion loss fluxes.The rotation equation contained in this research is now being developed to include the case with large poloidal Mach number to discuss the possibility of H-mode in helical systems.

本研究的目的是阐明等离子体旋转的机制及其与具有外部动量源的环形等离子体中等离子体输运的关系。研究重点为：1）反向场配置中等离子体的旋转机制，2）螺旋系统等离子体中的束流驱动电流，3）平行电流和等离子体旋转（等离子体流或径向电场）的新古典公式，4）快离子损失情况下径向电场的确定。这两年获得的主要成果如下： :(1) 得到了场反转结构中等离子体的旋转方程，并阐明了旋转与等离子体输运之间的关系。(2) 为3维几何制定了新古典电流和等离子体旋转。(3) 托卡马克和螺旋系统之间束流驱动电流和电导率的表达式是相同的，而自举电流和等离子体旋转具有很强的 (4) 确定旋转或径向电场的方程已扩展到包括高能粒子损失、电荷交换损失和外部动量来源的情况。(5) 开发了 ICRF 少数加热的蒙特卡尔代码。为了根据此处导出的旋转方程确定存在快离子损失时的径向电场，使用该蒙特卡罗代码来确定快离子损失通量。本研究中包含的旋转方程目前正在开发中，以包括具有大极向马赫数的情况，以讨论螺旋系统中 H 模式的可能性。