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Rarefied Dynamic Pressure Measurement for Electric Propulsion Propellant Flow Evaluation

Research Project

Project/Area Number 18K04573
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 24010:Aerospace engineering-related
Research Institution防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群)

Principal Investigator

Nakayama Yoshinori  防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群), システム工学群, 教授 (80532770)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords宇宙推進工学 / 電気推進 / 推進剤 / 希薄気体 / 圧力計測 / 真空工学 / 宇宙工学 / 可視化
Outline of Final Research Achievements

In order to estimate the difference in electric propulsion thruster performance between the operation in the ground test facility (vacuum chamber) and the operation in space, rarefied dynamic pressure measuring instrument using an optical fiber was miniaturized and modified to be able to detect the rarefied propellant flow regardless of the installation position/attitude. Through the three-dimensional measurement of the propellant flow in a vacuum chamber using this instrument, it was confirmed that the effect of the vacuum system wall reflection and the effect of the vacuum pump evacuation affected the flow in the whole of the vacuum chamber and the adequate thruster performance evaluation.

Academic Significance and Societal Importance of the Research Achievements

本研究により、真空装置内における推進機の位置や設置方向によって推進性能に影響を与えることだけでなく、推進機の性能を評価する様々な計測器もその位置や設置方向によって計測妥当性に影響を与えることが直接的に確かめられた。また真空ポンプ排気の可視化にまで成功しており、電気推進機推進性能の妥当評価に貢献できるだけでなく、真空装置の設計や数値解析等、宇宙工学以外にも寄与できると十分推察される。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (9 results)

All 2020 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Rarefied Propellant Flow Vector Measurement within a Vacuum Chamber2020

    • Author(s)
      NAKAYAMA Yoshinori
    • Journal Title

      TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN

      Volume: 18 Issue: 5 Pages: 174-179

    • DOI

      10.2322/tastj.18.174

    • NAID

      130007896446

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rarefied dynamic pressure distribution measurement near a vacuum pump2020

    • Author(s)
      中山 宜典
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 86 Issue: 889 Pages: 20-00167-20-00167

    • DOI

      10.1299/transjsme.20-00167

    • NAID

      130007907782

    • ISSN
      2187-9761
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Three-dimensional Measurement of Electric Propulsion Propellant Flow within a Vacuum Chamber2020

    • Author(s)
      中山 宜典
    • Journal Title

      JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

      Volume: 68 Issue: 5 Pages: 204-211

    • DOI

      10.2322/jjsass.68.204

    • NAID

      130007922521

    • ISSN
      1344-6460, 2432-3691
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Propellant Flow Analysis within Electric Propulsion Test Facility2019

    • Author(s)
      Yoshinori Nakayama
    • Journal Title

      TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN

      Volume: 17 Issue: 3 Pages: 276-281

    • DOI

      10.2322/tastj.17.276

    • NAID

      130007642472

    • ISSN
      1884-0485
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Rarefied Propellant Flow Vector Measurement within a Vacuum Chamber2019

    • Author(s)
      Yoshinori Nakayama
    • Organizer
      32nd International Symposium on Space Technology and Science
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Three-dimensional Vector Measurement of EP Propellant Flow within a Vacuum Chamber2019

    • Author(s)
      Yoshinori Nakayama
    • Organizer
      36th International Electric Propulsion Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 電気推進機推進剤希薄流の3次元計測2019

    • Author(s)
      中山宜典
    • Organizer
      第63回宇宙科学技術連合講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 電気推進機推進剤流れの真空槽内多点計測2019

    • Author(s)
      中山宜典
    • Organizer
      第 59 回航空原動機・宇宙推進講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 電気推進機推進剤流れ評価用希薄動圧計測装置の改良2018

    • Author(s)
      中山宜典
    • Organizer
      第 62 回宇宙科学技術連合講演会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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