Analysis on structure formation and complex dynamics by integrated simulation code for burning plasmas

通过燃烧等离子体集成仿真代码分析结构形成和复杂动力学

• 批准号: 16360459
• 负责人: YAGI Masatoshi
• 金额: $ 5.76万
• 依托单位: KYUSHU UNIVERCITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360459/
• 关键词: burning plasmas; hierarchical model; grid computing; transport code; ITPA; TASK; TOPICS; Three diemnsional

Integrated Code : TASK code which is written by Fortran 77 is now rewritten by Fortran 95. The subroutines for equilibrium calculation, MHD and NBI are extracted from TOPICS code and reconstructed by modules. The interface between TASK code and equilibrium module is developed and the combined code is tested. Combined with transport code TOPICS and stability code MARG2D, ELM simulation for the burning plasma is performed. The one dimensional fluid type code is developed and is benchmarked with standard transport code TASK.Hierarchical Model : the global code which can handle with the interaction between transport, MHD and turbulence is developed. Using this code, acceleration of MHD mode due to the turbulence and nonlocal transport in the reversed shear configuration is analyzed. The mechanism of internal transport barrier formation and collapse is identified. The physical characteristic of heat loss due to ELM is explored by particle simulation.MHD : MARG2D code module is offered as a … More tool for analysis of Tokamak experiments and for integrated transport simulation code.Parallel Computing Technique : the accelerator for MARG2D is designed to speed up the simulation. The hybrid simulation technique using heterogeneous system such as scalar and vector machine is considered.Data Analysis : Using ITPA database maintained by the mirror server in Kyoto University, transport models are benchmarked each other. It is found that CDBM05 model fits experimental profiles very well.Working group : The 5th BPSI(Burning Plasma Simulation Initiative) meeting was held in Kyushu University in 12/21-22 2006. Discussions on burning plasma integrated code which is enable to predict burning plasma were made.WWW : the source code of TASK is opened on the home of page BPSI (http://bpsi.nucleng.kyoto-u.ac.jp/bpsi/).3D version of TASK code : the time evolution equations for rotational transform and electric field are formulated to apply TASK code to Helical system and these modules are developed Less

集成代码：由Fortran 77编写的任务代码现在由Fortran 95重写。从TOPICS程序中提取了平衡计算、MHD和NBI子程序，并进行了模块化改造。开发了平衡模块与任务代码的接口，并对组合代码进行了测试。结合输运程序TOPICS和稳定性程序MARG 2D，对燃烧等离子体进行了ELM模拟。开发了一维流体型程序，并与标准输运程序TASK进行了比较。分层模型：开发了能处理输运、磁流体和湍流相互作用的全局程序。利用该程序，分析了反向剪切位形中湍流和非局域输运对MHD模的加速作用。内部传输势垒的形成和崩溃的机制进行了鉴定。采用粒子模拟的方法研究了ELM热损失的物理特性，给出了MHD：MARG 2D程序模块， ...更多信息 并行计算技术：设计了MARG 2D加速器以提高模拟速度。数据分析：利用京都大学镜像服务器维护的ITPA数据库，对交通模型进行了相互基准测试。工作组：2006年12月21 -22日在九州大学召开了第5届BPSI（燃烧等离子体模拟计划）会议。讨论了燃烧等离子体集成程序，该程序可用于燃烧等离子体的预测.在BPSI主页（http：//bpsi.nucon.kyoto-u.ac.jp/bpsi/）上打开了程序的源代码.三维版的程序：将程序应用于螺旋系统，建立了旋转变换和电场的时间演化方程，并开发了这些模块.

项目成果

Effect of Ion Viscosity on Neoclassical Tearing Mode

离子粘度对新古典撕裂模式的影响

• 发表时间: 2005
• 期刊: J.Plasma Fusion Res.SERIES 6巻
• 作者: S.Yoshida;S.-I.Itoh;M.Yagi
• 通讯作者: M.Yagi

Charging of spherical dust particle on plasma-facing wall

面向等离子体的壁上球形灰尘颗粒的充电

• 发表时间: 2006
• 期刊: Journal of Plasma Physics 72・6
• 作者: Y.Tomita;R.Smirnov;T.Takizuka;D.Tskhakaya
• 通讯作者: D.Tskhakaya

Effect of Mean Flow on the International between Turbulence and Zonal Flow

平均流对湍流与纬向流之间的影响

• 发表时间: 2006
• 期刊: Plasma and Fusion Research : Letters 1
• 作者: K.Uzawa;Y.Kishimoto;J.Q.Li
• 通讯作者: J.Q.Li

MHD Equilibrium and Pressure Driven Instability in L=1 Heliotron Plasmas

L=1 日光管等离子体中的 MHD 平衡和压力驱动不稳定性

• 发表时间: 2004
• 期刊: Nuclear Fusion 44巻
• 作者: Y.Nakamura;Y.Suzuki;O.Yamagishi;et al.
• 通讯作者: et al.

Profile Formation and Sustainment of Autonomous Tokamak Plasma with Current Hole Configuration

具有当前孔结构的自主托卡马克等离子体的剖面形成和维持

• 发表时间: 2005
• 期刊: Nucl.Fusion 45
• 作者: H.Kawashima;S.Sakurai;K.Shimizu;T.Takizuka;et al.;N.Hayashi
• 通讯作者: N.Hayashi