Numerical Simulation of Shielding Current Density in High-Temperature Superconductor by Parallel Processing on PC Cluster

PC集群并行处理高温超导体屏蔽电流密度数值模拟

基本信息

  • 批准号:
    15607001
  • 负责人:
  • 金额:
    $ 2.3万
  • 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:
    2003
  • 资助国家:
    日本
  • 起止时间:
    2003 至 2004
  • 项目状态:
    已结题

项目摘要

The numerical method has been investigated for analyzing the time evolution of the shielding current density in the high-temperature superconductor. Although the finite element method has been widely used in the various fields of the engineering, it has been plagued by two inherent difficulties : the limited smoothness ofthe approximate solution and the time-consuming element generation. In order to resolve the difficulties, several meshless approaches have been proposed.In the present study, the 3D numerical simulation code has been developed on the basis of the meshless approach and it has been employed for calculating the time evolution of the shielding current density In order to discretize the governing equations with respect to space and time, the backward Euler method and the element free Galerkin method are employed, respectively. For the purpose of solving the resulting nonlinear system stably, the adaptively deaccelerated Newton method has been proposed. Furthermore, to achieve the high-performance computing, the parallel processing by using the MPI on a PC cluster is applied to the numerical simulation.By using the above simulation method, the inductive method for measuring the critical current density is investigated. When the high-temperature superconductor is exposed to the magnetic field generated by the ac coil current, the voltage induced in the coil contains not only a linear component but higher harmonics. The harmonic voltages are numerically calculated as a function of the coil current. The results of computations show that, above a certain limit of the coil current, The third harmonic voltage is suddenly excited. In addition, it is also found that the square root of the third harmonic voltage is approximately a linear function of the coil current.
研究了高温超导体中屏蔽电流密度随时间变化的数值分析方法。虽然有限元法在工程的各个领域得到了广泛的应用,但它存在两个固有的困难:近似解的光滑性有限和单元生成耗时。为了解决这一难题,人们提出了几种无网格方法。本文在无网格方法的基础上开发了三维数值模拟程序,用于计算屏蔽电流密度的时间演化。为了使控制方程在空间和时间上离散化,分别采用了后向欧拉法和无单元伽辽金法。为了稳定求解产生的非线性系统,提出了自适应去加速牛顿法。此外,为了实现高性能计算,将MPI在PC集群上的并行处理应用于数值模拟。利用上述仿真方法,研究了感应法测量临界电流密度的方法。当高温超导体暴露在交流线圈电流产生的磁场中时,线圈中感应的电压不仅包含线性分量,而且包含高次谐波。谐波电压作为线圈电流的函数进行了数值计算。计算结果表明,当线圈电流超过一定极限时,三次谐波电压会突然被激发。此外,还发现三次谐波电压的平方根近似是线圈电流的线性函数。

项目成果

期刊论文数量(77)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
高温超伝導体の遮蔽電流密度シミュレーション
高温超导体的屏蔽电流密度模拟
Numerical Investigations on Relation between Critical Current Density and Third Harmonic Voltage in HTS
高温超导临界电流密度与三次谐波电压关系的数值研究
Evaluation of Magnetic Shielding Performance of HTS by Meshless Approach
无网格法评价高温超导磁屏蔽性能
  • DOI:
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    0
  • 作者:
    S.Ikuno;A.Kamitani;A.Kamitani;S.Ikuno;A.Kamitani;S.Ikuno
  • 通讯作者:
    S.Ikuno
GMRES with New Preconditioning for Solving BEM-Type Linear System
具有新预处理功能的 GMRES 用于求解 BEM 型线性系统
  • DOI:
  • 发表时间:
    2004
  • 期刊:
  • 影响因子:
    0
  • 作者:
    S.Ikuno;A.Kamitani;A.Kamitani;S.Ikuno;A.Kamitani;S.Ikuno;A.Kamitani;S.Ikuno;A.Kamitani;T.Hanawa;A.Saitoh
  • 通讯作者:
    A.Saitoh
Time Domain Analysis of Shielding Current Density in HTS
高温超导中屏蔽电流密度的时域分析
  • DOI:
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    0
  • 作者:
    生野壮一郎;A.Kamitani
  • 通讯作者:
    A.Kamitani
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KAMITANI Atsushi其他文献

可変速ディーゼル発電システムを用いた小規模電力系統における風力発電由来の周波数変動抑制法
使用变速柴油发电系统抑制小型电力系统中风力发电引起的频率波动的方法
  • DOI:
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    KAMITANI Atsushi;TAKAYAMA Teruou;SAITOH Ayumu;NAKAMURA Hiroaki;高橋理音,梅村敦史,田村淳二
  • 通讯作者:
    高橋理音,梅村敦史,田村淳二
Acceleration Techniques for Linear-System Solver in Shielding Current Analysis of Cracked HTS Film
裂纹高温超导薄膜屏蔽电流分析中线性系统求解器的加速技术
  • DOI:
    10.1585/pfr.16.2405005
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    0.8
  • 作者:
    KAMITANI Atsushi;TAKAYAMA Teruou;SAITOH Ayumu;NAKAMURA Hiroaki
  • 通讯作者:
    NAKAMURA Hiroaki
Improved Variable-Reduction Method and Its Variant for Solving Asymmetric EFG-Type Saddle-Point Problem
求解非对称EFG型鞍点问题的改进变量归约法及其变体
  • DOI:
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    0.8
  • 作者:
    KAMITANI Atsushi;TAKAYAMA Teruou
  • 通讯作者:
    TAKAYAMA Teruou
輻射輸送を考慮したSF6アークプラズマの3次元数値解析
考虑辐射输运的SF6电弧等离子体三维数值分析
  • DOI:
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    0
  • 作者:
    KAMITANI Atsushi;TAKAYAMA Teruou;SAITOH Ayumu;NAKAMURA Hiroaki;信木 慎・平山智士・乾 義尚
  • 通讯作者:
    信木 慎・平山智士・乾 義尚
低慣性電力系統における仮想同期発電機の出力制御方式の検討
低惯量电力系统虚拟同步发电机输出控制方法研究
  • DOI:
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    0
  • 作者:
    KAMITANI Atsushi;TAKAYAMA Teruou;SAITOH Ayumu;NAKAMURA Hiroaki;西谷壽祥,Thongchart Kerdphol,渡邊政幸,三谷康範
  • 通讯作者:
    西谷壽祥,Thongchart Kerdphol,渡邊政幸,三谷康範

KAMITANI Atsushi的其他文献

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{{ truncateString('KAMITANI Atsushi', 18)}}的其他基金

High-Performance Computational Techniques for Practical Electromagnetic-Field Analysis in High-Temperature Superconductor
高温超导体实用电磁场分析的高性能计算技术
  • 批准号:
    24560321
  • 财政年份:
    2012
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of High-Performance Electromagnetic Analysis for Design of Engineering Application of High-Temperature Superconductor
高温超导体工程应用设计高性能电磁分析的发展
  • 批准号:
    21560287
  • 财政年份:
    2009
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of Fast Numerical Methods for Electromagnetic Analysis in High-Temperature Superconductors
高温超导体电磁分析快速数值方法的发展
  • 批准号:
    19560276
  • 财政年份:
    2007
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Time-Evolution Simulation of Shielding Current Density in High-Temperature Superconductor
高温超导体屏蔽电流密度的时间演化模拟
  • 批准号:
    17560245
  • 财政年份:
    2005
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Time Domain Analysis on Magnetic Shielding Performance of YBCO Superconductor
YBCO超导体磁屏蔽性能时域分析
  • 批准号:
    13650297
  • 财政年份:
    2001
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Numerical Investigations on Magnetic Shielding Performance of High-Tc Superconductor
高温超导体磁屏蔽性能的数值研究
  • 批准号:
    11834004
  • 财政年份:
    1999
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

相似海外基金

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职业:混合态计算成像和光传输探测
  • 批准号:
    2238485
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    2023
  • 资助金额:
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    Continuing Grant
Biological assessments for severity of and therapeutic response to depressive mixed state
抑郁混合状态严重程度和治疗反应的生物学评估
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  • 财政年份:
    2021
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Quantification and biological backgrounds of depressive mixed state
抑郁混合状态的量化和生物学背景
  • 批准号:
    17K10311
  • 财政年份:
    2017
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    $ 2.3万
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    Grant-in-Aid for Scientific Research (C)
Development of mixed state evaporation coefficient measurement method based on acoustic resonance tube experiment and establishment of experimental formula
基于声谐振管实验的混合态蒸发系数测量方法开发及实验公式建立
  • 批准号:
    16K21576
  • 财政年份:
    2016
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
RUI: Thermal Properties of Strongly-Coupled Extreme Type-II Superconductors in the Mixed State
RUI:混合态强耦合极端 II 型超导体的热性能
  • 批准号:
    0856415
  • 财政年份:
    2009
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Standard Grant
NMR study of the Peculiar Superconducting Mixed State in the Np Superconductor
Np超导体中特殊超导混合态的核磁共振研究
  • 批准号:
    21740273
  • 财政年份:
    2009
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Young Scientists (B)
Evaluation method for flux pinning properties in the mixed state of superconductors
超导体混合态磁通钉扎性能评价方法
  • 批准号:
    18560309
  • 财政年份:
    2006
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
US-India Cooperative Research: Density Functional Theory of the Mixed State in Layered Superconductors with Pinning
美印合作研究:钉扎层状超导体混合态的密度泛函理论
  • 批准号:
    0352598
  • 财政年份:
    2004
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Standard Grant
Scaling Law on the temperature and magnetic field dependence of critical current density in the mixed state of superconductors
超导体混合态临界电流密度对温度和磁场依赖性的标度定律
  • 批准号:
    15560279
  • 财政年份:
    2003
  • 资助金额:
    $ 2.3万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Systematic study of the phase diagram of the mixed state of high temperature superconductors
高温超导体混合态相图的系统研究
  • 批准号:
    09650008
  • 财政年份:
    1997
  • 资助金额:
    $ 2.3万
  • 项目类别:
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