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Simulation and Visualization of MHD Relaxation in a Sphere

Research Project

Project/Area Number 17H02998
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Plasma science
Research InstitutionKobe University

Principal Investigator

Kageyama Akira  神戸大学, システム情報学研究科, 教授 (20260052)

Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywords自己組織化 / 磁気流体力学 / 可視化 / インヤン格子 / in situ可視化 / 熱対流 / 構造形成 / MHD
Outline of Final Research Achievements

We found that there are two types of relaxed states of magnetohydrodynamics in a sphere in which flow and magnetic fields coexist. One is a state in which the magnetic and flow fields are almost parallel. A typical example of this state is the so-called twist flow. The other is a state in which the flow and magnetic field have different structures and distributions. In this state, the energy of the flow and the magnetic field is concentrated in opposite hemispheres, and the jet-like flow and the tension in the magnetic field generated by the flow maintain a quasi-steady state while supplying energy in a complementary manner. The visualization method developed to analyze these computations was established as a new visualization method with versatility, named 4D Street View. A dedicated library and video player to realize 4D Street View were also successfully developed and widely released to the public along with sample data.

Academic Significance and Societal Importance of the Research Achievements

余分なエネルギーをもつプラズマは熱平衡状態に至るまでの長い時間、準定常状態を保つ。そこにみられる様々な構造は多くの研究者の興味をひきつけてきた。磁場のみ(つまり流れのない)準定常状態への緩和について主に調べられてきたこれまでの研究を大きく拡張し、流れと磁場が共存した緩和過程について明らかにしたという点に本研究の学問的な意義がある。また、この研究で開発した4次元ストリートビュー手法は球内部の磁気流体シミュレーションに限らず様々な形状や種類の大規模シミュレーションに適用できる汎用性をもつことが確認された。この手法とオープンソースとして公開した基本ツールは幅広い研究開発に活用されることが期待できる。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (39 results)

All 2022 2021 2020 2019 2018 2017

All Journal Article (17 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 15 results,  Open Access: 6 results) Presentation (20 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results) Book (2 results)

  • [Journal Article] Chiral pattern in nonrotating spherical convection2022

    • Author(s)
      Kageyama Akira, Ohno Nobuaki
    • Journal Title

      Physical Review Fluids

      Volume: 7 Issue: 1 Pages: 013502-013502

    • DOI

      10.1103/physrevfluids.7.013502

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In-situ visualization library for Yin-Yang grid simulations2021

    • Author(s)
      Ohno Nobuaki, Kageyama Akira
    • Journal Title

      Earth, Planets and Space

      Volume: 73 Issue: 1 Pages: 158-158

    • DOI

      10.1186/s40623-021-01485-2

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Toward Agent-based In Situ Visualization2021

    • Author(s)
      Wang Yan, Ren Sakai, Akira Kageyama
    • Journal Title

      Proc. Asia Sim 2021

      Volume: NA

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interactive Exploration of the In-Situ Visualization of a Magnetohydrodynamic Simulation2020

    • Author(s)
      A. Kageyama, N. Sakamoto, H. Miura, and N. Ohno
    • Journal Title

      Plasma and Fusion Research

      Volume: 15 Issue: 0 Pages: 1401065-1401065

    • DOI

      10.1585/pfr.15.1401065

    • NAID

      130007903704

    • ISSN
      1880-6821
    • Year and Date
      2020-09-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 4D street view: a video-based visualization method2020

    • Author(s)
      Kageyama Akira、Sakamoto Naohisa
    • Journal Title

      PeerJ Computer Science

      Volume: 6 Pages: e305-e305

    • DOI

      10.7717/peerj-cs.305

    • NAID

      120006919977

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Formation of twisted liquid jets2020

    • Author(s)
      Kageyama Akira、Goto Yuna
    • Journal Title

      Physical Review Fluids

      Volume: 5 Issue: 6 Pages: 064002-064002

    • DOI

      10.1103/physrevfluids.5.064002

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 4次元ストリートビュー: 計算機シミュレーションの新しい可視化法2020

    • Author(s)
      陰山 聡, 坂 本 尚 久, 大野 暢亮
    • Journal Title

      プラズマ核融合学会誌

      Volume: 96 Pages: 199-206

    • NAID

      40022250488

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] YYZVis: An Efficient Visualization Toolkit for Yin-Yang-Zhong Grid Dataset2020

    • Author(s)
      Uemori Kaoru、Sakamoto Naohisa、Ohno Nobuaki、Kageyama Akira
    • Journal Title

      Journal of Advanced Simulation in Science and Engineering

      Volume: 7 Issue: 1 Pages: 15-33

    • DOI

      10.15748/jasse.7.15

    • NAID

      130007808083

    • ISSN
      2188-5303
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of CAVELib Compatible Library for HMD-type VR Devices2019

    • Author(s)
      Kawahara Shintaro、Kageyama Akira
    • Journal Title

      Journal of Advanced Simulation in Science and Engineering

      Volume: 6 Issue: 1 Pages: 234-248

    • DOI

      10.15748/jasse.6.234

    • NAID

      130007655847

    • ISSN
      2188-5303
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] In-Situ Visualization with Membrane Layer for Movie-Based Visualization2019

    • Author(s)
      Yamamoto Kohei、Kageyama Akira
    • Journal Title

      Lecture Notes in Computer Science

      Volume: 11540 Pages: 588-594

    • DOI

      10.1007/978-3-030-22750-0_55

    • ISBN
      9783030227494, 9783030227500
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An Interactive Visualization Tookkit for Yin-Yang-Zhong Grid Dataset2019

    • Author(s)
      Kaoru Uemori, Naohisa Sakamoto, Nobuaki Ohno, and Akira Kageyama
    • Journal Title

      Proceedings The 38th JSST Annual International Conference on Simulation Technology

      Pages: 27-30

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 計算機シミュレーションの対話的同時可視化手法2019

    • Author(s)
      陰山 聡
    • Journal Title

      TELECOM FRONTIER

      Volume: 105 Pages: 1-5

    • Related Report
      2019 Annual Research Report
  • [Journal Article] A Dialect of Modern Fortran for Computer Simulations2018

    • Author(s)
      Hosoyamada Shin’Ya、Kageyama Akira
    • Journal Title

      Communications in Computer and Information Science, AsiaSim 2018

      Volume: 946 Pages: 439-448

    • DOI

      10.1007/978-981-13-2853-4_34

    • ISBN
      9789811328527, 9789811328534
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] efpp: A preprocessor for Modern Fortran2018

    • Author(s)
      Shin’Ya Hosoyamada and Akira Kageyama
    • Journal Title

      Proceedings The 37th JSST Annual International Conference on Simulation Technology

      Pages: 372-375

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Membrane Layer Method to Separate Simulation and Visualization for Large-scale In-situ Visualizations2018

    • Author(s)
      Akira Kageyama, Naohisa Sakamoto and Kohei Yamamoto
    • Journal Title

      SciTePress 2018

      Pages: 106-111

    • DOI

      10.5220/0006854901060111

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Flexible visualization framework for head-mounted display with gesture interaction interface2017

    • Author(s)
      Pierre J. Jarsaillon, Naohisa Sakamoto, Akira Kageyama
    • Journal Title

      International Journal of Modeling, Simulation, and Scientific Computing

      Volume: - Issue: 03 Pages: 1840002-1840002

    • DOI

      10.1142/s1793962318400020

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] HMD型VR装置を用いたインタラクティブ可視化2017

    • Author(s)
      川原 慎太郎, 陰山 聡
    • Journal Title

      可視化情報

      Volume: 37 Pages: 14-19

    • NAID

      130007500706

    • Related Report
      2017 Annual Research Report
  • [Presentation] 無回転球殻対流系における鏡像非対称な定常対流解2021

    • Author(s)
      陰山 聡, 大野暢亮
    • Organizer
      日本物理学会秋季大会(オンライン)
    • Related Report
      2021 Annual Research Report
  • [Presentation] 無回転球殻対流系における鏡像非対称な定常対流解2021

    • Author(s)
      陰山 聡, 大野暢亮
    • Organizer
      プラズマシミュレータシンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] ねじれた角柱状水流の形成2020

    • Author(s)
      陰山 聡, 後藤 優奈
    • Organizer
      日本物理学会 秋季大会(オンライン)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 4-D Street View: Movie-based visualization method for HPC2019

    • Author(s)
      Akira Kageyama
    • Organizer
      AAPPS-DPP
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] n-Situ Visualization with Membrane Layer for Movie-based Visualization,2019

    • Author(s)
      Akira Kageyama
    • Organizer
      International Conference for Computational Science (ICCS)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 4次元ストリートビュー: 計算機シミュレーションの新しい可視化手法2019

    • Author(s)
      陰山 聡
    • Organizer
      第36回 プラズマ・核融合学会 年会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 動画ベースの可視化手法 4 次元ストリートビュー2019

    • Author(s)
      陰山 聡
    • Organizer
      CFDシンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] 可視化手法の新手法 4次元ストリートビュー2019

    • Author(s)
      陰山 聡
    • Organizer
      STEシミュレーション研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 全方位動画に基づく新しい可視化手法2019

    • Author(s)
      陰山 聡
    • Organizer
      プラズマシミュレータシンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] VFIVE開発の経緯とその後の発展の紹介2019

    • Author(s)
      陰山 聡
    • Organizer
      第87回CG・可視化研究会(CAVE研究会)
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 球内部のMHDシミュレーション手法と可視化ツール2019

    • Author(s)
      陰山 聡
    • Organizer
      JpGU(日本地球惑星科学連合大会)
    • Related Report
      2019 Annual Research Report
  • [Presentation] MHD Relaxation and Dynamo in a Sphere, 2nd Asia-Pacific Conference on Plasma Physics2018

    • Author(s)
      Akira Kageyama
    • Organizer
      2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 流れと磁場が共存する球内部のMHD緩和2018

    • Author(s)
      陰山 聡
    • Organizer
      日本物理学会 第73回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 球内部のMHD緩和シミュレーションとそのin-situ可視化2018

    • Author(s)
      陰山 聡
    • Organizer
      プラズマシミュレータシンポジウム2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] 4次元ストリートビュー手法による対話的in-situ可視化2018

    • Author(s)
      陰山 聡
    • Organizer
      プラズマ・核融合学会 第35回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 薄い球殻内の熱対流とMHDダイナモ2017

    • Author(s)
      陰山 聡
    • Organizer
      JpGU(日本地球惑星科学連合2017年大会)
    • Related Report
      2017 Annual Research Report
  • [Presentation] MHDシミュレーションの 4次元ストリートビュー2017

    • Author(s)
      陰山 聡
    • Organizer
      プラズマシミュレータシンポジウム
    • Related Report
      2017 Annual Research Report
  • [Presentation] Development of a new MHD simulation code with asynchronous parallel visualization2017

    • Author(s)
      Akira Kageyama
    • Organizer
      プラズマコンファレンス2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] A simple preprocessor for Fortran 2003 simulation programs2017

    • Author(s)
      Akira Kageyama
    • Organizer
      プラズマコンファレンス2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] 球内部のMHD緩和2017

    • Author(s)
      陰山 聡
    • Organizer
      NIFS研究会 MHD シミュレーションのための先進的数値計算手法
    • Related Report
      2017 Annual Research Report
  • [Book] コンパスが南をさすとき2020

    • Author(s)
      陰山聡
    • Total Pages
      96
    • Publisher
      くもん出版
    • ISBN
      4774330965
    • Related Report
      2020 Annual Research Report
  • [Book] 図説地球科学の事典2018

    • Author(s)
      鳥海光弘、入舩徹男、岩森光、ウォリスサイモン、小平秀一、小宮剛、阪口秀、鷺谷威、末次大輔、中川貴司、宮本英昭
    • Total Pages
      248
    • Publisher
      朝倉書店
    • ISBN
      9784254160727
    • Related Report
      2018 Annual Research Report

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Published: 2017-04-28   Modified: 2023-01-30  

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