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Digital Twin Creation of High-Density Ion Thruster with Electron Anomalous Transport Control

Research Project

Project/Area Number 20H02346
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 24010:Aerospace engineering-related
Research InstitutionShibaura Institute of Technology (2022-2023)
The University of Tokyo (2020-2021)

Principal Investigator

Kawashima Rei  芝浦工業大学, 工学部, 准教授 (80794429)

Co-Investigator(Kenkyū-buntansha) 小泉 宏之  東京大学, 大学院新領域創成科学研究科, 准教授 (40361505)
鷹尾 祥典  横浜国立大学, 大学院工学研究院, 准教授 (80552661)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
Fiscal Year 2023: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2022: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2021: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywordsホールスラスタ / 電気推進 / プラズマ / 放電制御 / 数値流体力学 / プラズマ乱流 / ホローカソード / 水
Outline of Research at the Start

アノードレイヤ型ホールスラスタは、日本独自で開発が続けられてきたイオン推進機であり、コンパクトな機体で高密度プラズマを生成し大推力を生むという特長がある。本研究では、様々な時間的・空間的スケールでのプラズマ流れの解析や、真空設備内ガス流れの解析を連成させた数値シミュレーションにより、ホールスラスタの地上実験を包括的に再現するデジタルツインを創成する。さらに開発されたデジタルツインを活用して、人工的乱れの付加による電子異常輸送の発生領域を制御する方法を探求する。研究終盤では、電子異常輸送の制御法を用いて、無限寿命かつ高効率なアノードレイヤ型ホールスラスタの数値設計を行う。

Outline of Final Research Achievements

This study aims to develop numerical simulations to comprehensively replicate ground-based experiments of Hall thrusters by creating analytical models for key physical phenomena. Firstly, to analyze anomalous electron transport within Hall thrusters, simulations of azimuthal plasma oscillations were conducted, revealing that vortex structures downstream of the ion acceleration region promote electron transport. Additionally, the analysis of plasma-wall interactions demonstrated that controlling the ion acceleration region could reduce wall ion losses. These findings were validated through experiments with artificial non-uniformities and control of the ion acceleration region in Hall thruster test devices. Moreover, a gas flow simulation model for vacuum test facilities was developed, providing insights to mitigate facility effects.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的に重要な成果は、磁化プラズマを利用するイオン推進機において、磁場閉じ込めを阻害する電子異常輸送現象を解析し、現象の原因となるプラズマ不安定性の空間的なスケールを明らかにした点である。この空間的スケールに近い人工的な非一様性を付加することによって、プラズマ不安定性の発生を制御できる可能性を示すことができた。このことは磁化プラズマにおける人工的擾乱を用いた乱流制御という新しい研究領域へと発展するものであり、学術的意義が大きい。加えて、イオン推進機の地上実験を再現するための物理モデルや数値スキームを整備することができた。このシミュレーション技術は宇宙開発の分野に貢献するものである。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (28 results)

All 2024 2023 2022 2021 2020

All Journal Article (10 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 10 results,  Open Access: 1 results) Presentation (18 results) (of which Int'l Joint Research: 14 results,  Invited: 3 results)

  • [Journal Article] Sheath Analysis of Conducting Channel Walls in Anode-Layer Hall Thruster with Acceleration Zone Shifted Downstream2023

    • Author(s)
      R. Kawashima
    • Journal Title

      Frontier of Applied Plasma Technology

      Volume: 16 Pages: 1-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Method of Suppressing Ingestion Particles Flowing Back to a Hall Thruster using a Beam Target during Ground Testing2022

    • Author(s)
      Ito G., Kawashima R., Komurasaki K., Koizumi H.
    • Journal Title

      TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

      Volume: 65 Issue: 4 Pages: 160-171

    • DOI

      10.2322/tjsass.65.160

    • ISSN
      0549-3811, 2189-4205
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Plasma structure and electron cross-field transport induced by azimuthal manipulation of the radial magnetic field in a Hall thruster E?×?B discharge2022

    • Author(s)
      Bak J., Kawashima R., Romanelli G., Komurasaki K.
    • Journal Title

      Journal of Applied Physics

      Volume: 131 Issue: 5 Pages: 053302-053302

    • DOI

      10.1063/5.0067310

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Wall Ion Loss Reduction by Acceleration Zone Shifting in Anode-Layer Hall Thruster2022

    • Author(s)
      Kawashima R., Hamada Y., Kawabata S., Komurasaki K., Koizumi H.
    • Journal Title

      Journal of Propulsion and Power

      Volume: 38 Issue: 3 Pages: 489-493

    • DOI

      10.2514/1.b38460

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Two-dimensional hybrid model of gradient drift instability and enhanced electron transport in a Hall thruster2021

    • Author(s)
      Kawashima R., Komurasaki K.
    • Journal Title

      Physics of Plasmas

      Volume: 28 Issue: 6 Pages: 063502-063502

    • DOI

      10.1063/5.0045984

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evolution of electron cross-field transport induced by an equilibrium azimuthal electric field in an E?×?B Hall thruster discharge under an azimuthally inhomogeneous neutral supply2021

    • Author(s)
      Bak J., Kawashima R., Simmonds J., Komurasaki K.
    • Journal Title

      Physics of Plasmas

      Volume: 28 Issue: 10 Pages: 102510-102510

    • DOI

      10.1063/5.0060377

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A fast convergence fourth-order Vlasov model for Hall thruster ionization oscillation analyses2021

    • Author(s)
      Wang Z., Kawashima R., Komurasaki K.
    • Journal Title

      Plasma Science and Technology

      Volume: 24 Issue: 2 Pages: 025502-025502

    • DOI

      10.1088/2058-6272/ac3970

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Incident angle dependence of reflected particles in low-energy xenon-ion impacts on metal surfaces2021

    • Author(s)
      Ito G., Kawashima R., Komurasaki K., Koizumi H.
    • Journal Title

      Computational Materials Science

      Volume: 186 Pages: 109989-109989

    • DOI

      10.1016/j.commatsci.2020.109989

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of acceleration zone shifting in an anode-layer-type Hall thruster RAIJIN662021

    • Author(s)
      Hamada Y., Kawashima R., Bak J., Komurasaki K., Koizumi H.
    • Journal Title

      Vacuum

      Volume: 186 Pages: 110040-110040

    • DOI

      10.1016/j.vacuum.2020.110040

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Discharge characteristics and increased electron current during azimuthally nonuniform propellant supply in an anode layer Hall thruster2020

    • Author(s)
      Bak J., Van Loo B., Kawashima R., Komurasaki K.
    • Journal Title

      Journal of Applied Physics

      Volume: 128 Issue: 2 Pages: 023302-023302

    • DOI

      10.1063/1.5144851

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Electron Transport Enhancement by Artificial Disturbance in Near-Anode Region of Hall Thruster2024

    • Author(s)
      R. Kawashima
    • Organizer
      31st Annual Meeting of IAPS
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical Analysis of the Gradient Drift Instability and its Control in Hall Thruster Plasmas2023

    • Author(s)
      R. Kawashima
    • Organizer
      AAPPS-DPP2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Hybrid-PIC Simulation of Gradient Drift Instabilities in Hall Thrusters for Electron Transport Analysis2022

    • Author(s)
      R. Kawashima, K. Komurasaki
    • Organizer
      37th International Electric Propulsion Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Performance Investigation of a Thruster with Anode Layer based on Anode Temperature Change2022

    • Author(s)
      D. Satpathy, S. Kawabata, H. Sekine, R. Kawashima, K. Komurasaki, H. Koizumi
    • Organizer
      37th International Electric Propulsion Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Plasma formation and electron cross-field transport in the axial-azimuthal plane of a Hall thruster2022

    • Author(s)
      J. Bak, R. Kawashima, K. Komurasaki
    • Organizer
      37th International Electric Propulsion Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hybrid kinetic-fluid simulations of Hall thruster plasma dynamics2022

    • Author(s)
      R. Kawashima, K. Komurasaki
    • Organizer
      32nd International Symposium on Rarefied Gas Dynamics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Control of Plasma Instabilities and Anomalous Electron Transport in a Hall Thruster2022

    • Author(s)
      R. Kawashima
    • Organizer
      Advances in Applied Plasma Science 13
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anatomy of cross-field electron transport by steady and unsteady plasma structures in Hall thrusters2022

    • Author(s)
      R. Kawashima, J. Bak, K. Komurasaki
    • Organizer
      75th Gaseous Electronics Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ホールスラスタ性能予測へ向けた勾配ドリフト不安定性の数値シミュレーション2022

    • Author(s)
      川嶋嶺, 小紫公也
    • Organizer
      第61回航空原動機・宇宙推進講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ホールスラスタの勾配ドリフト不安定性と電子輸送促進に関する数値解析2022

    • Author(s)
      川嶋嶺, 小紫公也
    • Organizer
      2021年度宇宙輸送シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] Sheath Analysis of Conducting Channel Walls in an Anode-Layer Hall Thruster2021

    • Author(s)
      R. Kawashima, Z. Wang, S. Kawabata, K. Komurasaki
    • Organizer
      Plasma Application and Hybrid Functionally Materials
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Measured Ionization and Acceleration Zones in an Anode Layer Type Hall Thruster RAIJIN662021

    • Author(s)
      R. Kawashima, Y. Hamada, J. Bak, K. Komurasaki, H. Koizumi
    • Organizer
      10th Asian Joint Conference on Propulsion and Power
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hybrid Vlasov-Fluid Model with High-Order Schemes for Partially Ionized Plasma Flows2021

    • Author(s)
      R. Kawashima, Z. Wang, K. Komurasaki
    • Organizer
      2021 AIAA SciTech Forum
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical Analysis of Channel Wall Sheath Thickness in an Anode-Layer Hall Thruster2020

    • Author(s)
      R. Kawashima, Z. Wang, S. Kawabata, K. Komurasaki
    • Organizer
      Plasma Application and Hybrid Functionally Materials
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spatiotemporal characteristics of plasma structure induced by manipulation of electron cross-field transport in a Hall thruster2020

    • Author(s)
      J. Bak, R. Kawashima, K. Komurasaki
    • Organizer
      73rd Gaseous Electronics Conference
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Influence of manipulation of electron streamlines on plasma formation and electron cross-field transport in ExB plasma2020

    • Author(s)
      J. Bak, R. Kawashima, G. Romanelli, K. Komurasaki
    • Organizer
      4th Asia-Pacific Conference on Plasma Physics
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] プラズマ振動による電子輸送促進効果を加味するホールスラスタの連成シミュレーション2020

    • Author(s)
      川嶋嶺, 王哲旭, 伊藤彦, 川畑就, 小紫公也, 小泉宏之
    • Organizer
      第64回宇宙科学技術連合講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 電気推進を用いた軌道間輸送機に関する議論2020

    • Author(s)
      船木一幸, 中野正勝, 小紫公也, 鷹尾祥典, 横田茂, 張科寅, 川嶋嶺
    • Organizer
      宇宙太陽発電
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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