• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of a new controlled shock wave pressure generation method by using a closed space made of materials with different acoustic impedance

Research Project

Project/Area Number 18K03921
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 19010:Fluid engineering-related
Research InstitutionTohoku University

Principal Investigator

Ohtani Kiyonobu  東北大学, 流体科学研究所, 特任准教授 (80536748)

Co-Investigator(Kenkyū-buntansha) 小川 俊広  東北大学, 流体科学研究所, 技術専門員 (30375133)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords衝撃波圧力制御 / 水中衝撃波 / 水中膨張波 / 圧力増幅 / 閉空間 / 音響インピーダンス / 光学可視化計測 / 衝撃波制御
Outline of Final Research Achievements

In this study, an experiment and numerical simulation on underwater shock wave generation phenomena by an explosion in a closed space for establishment of a new controlled shock wave pressure generation method related to the shock wave medical and biomedical application. Underwater shock wave was generated in a metal tube as a closed space made of material with different acoustic impedance. The process of underwater shock wave generation phenomena from a metal tube was visualized by the shadowgraph method. The pressure history of generated shock wave was measured simultaneously by a pressure sensor. The process of underwater shock wave interaction phenomena with a metal tube inside wall was simulated.
The peak overpressure of induced underwater shock wave from a metal tube was larger than that of shock wave by detonating in water open space. The peak overpressure of shock wave in a stainless-steel tube was higher than in an aluminum tube due to difference in acoustic impedance.

Academic Significance and Societal Importance of the Research Achievements

本研究課題の遂行によって、円管のような単純な形状の閉空間を用いた衝撃波圧力の制御が可能になるデータおよび知見が得られたことで、今後実施検討されている衝撃波作用による生体損傷の機序解明研究など衝撃波医療応用分野において用いられる有用な衝撃波圧力制御手法として期待できるだけでなく、衝撃波圧力を利用した殺菌、加工、洗浄等の様々な衝撃波産業応用分野での発展に大きく寄与できることが期待できると考える。

Report

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

    (19 results)

All 2020 2019 2018

All Presentation (19 results) (of which Int'l Joint Research: 7 results,  Invited: 1 results)

  • [Presentation] 円管内形状の異なる閉空間内発生水中衝撃波挙動に関する研究2020

    • Author(s)
      大谷清伸, 小川俊広, 中川敦寛, 阿部淳
    • Organizer
      本機械学会2020年度年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 多層網媒体との干渉による衝撃波低減に関する研究2020

    • Author(s)
      大谷清伸, 小川俊広, 阿部淳, 中川敦寛
    • Organizer
      火薬学会2020年度秋季研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 多層網媒体干渉による衝撃波圧力低減に関する研究2020

    • Author(s)
      大谷清伸, 小川俊広, 阿部淳, 中川敦寛
    • Organizer
      2020年度衝撃波シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] Study on improvement of washing effect for textile using the underwater explosion2020

    • Author(s)
      K. Kitagawa, H. Ueda, K. Ohtani, Y. Konishi
    • Organizer
      The 17th International Conference on Flow Dynamics (ICFD2020), OS19: The 20th International Symposium on Advanced Fluid Information (AFI-2020) IFS Collaborative Research Forum
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 爆風に伴う衝撃波圧力からの防御方法に関する基礎研究2020

    • Author(s)
      大谷清伸, 小川俊広, 中川敦寛, 阿部淳
    • Organizer
      2019年度衝撃波シンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] Numerical study on micro-explosive induced shock wave propagation in a closed space2019

    • Author(s)
      K. Ohtani, T. Ogawa, A. Abe, A. Nakagawa
    • Organizer
      32nd International Symposium on Shock Waves (ISSW32)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Experimental study on washing effect for textile using the underwater explosion2019

    • Author(s)
      K. Kitagawa, K. Ohtani
    • Organizer
      32nd International Symposium on Shock Waves (ISSW32)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 音響インピーダンスの異なる材料を用いた円管内発生水中衝撃波挙動に関する研究2019

    • Author(s)
      大谷清伸, 小川俊広, 中川敦寛, 阿部淳
    • Organizer
      日本機械学会2019年度年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Study on Washing Effect for Textile using the Underwater Explosion2019

    • Author(s)
      K. Kitagawa, K. Ohtani, Y. Konishi
    • Organizer
      he 16th International Conference on Flow Dynamics (ICFD2019), OS19: The 19th International Symposium on Advanced Fluid Information (AFI-2019) IFS Collaborative Research Forum
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 水中放電を用いた衝撃波伝播挙動の光学可視化計測2019

    • Author(s)
      大谷清伸, 小川俊広, 中川敦寛, 阿部淳
    • Organizer
      高速度イメージングとフォトニクスに関する総合シンポジウム2019
    • Related Report
      2019 Research-status Report
  • [Presentation] 東北大学における爆傷に関わる衝撃波研究2019

    • Author(s)
      大谷清伸
    • Organizer
      爆傷フォーラム2019
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 金属円管内発生水中衝撃波挙動の管形状の影響2019

    • Author(s)
      大谷清伸, 小川俊広, 中川敦寛, 阿部淳
    • Organizer
      火薬学会2019年度秋季研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] 金属円管内微小爆薬起爆による発生衝撃波の数値模擬2019

    • Author(s)
      大谷清伸, 小川俊広, 阿部淳, 中川敦寛
    • Organizer
      平成30年度衝撃波シンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] Numerical study on micro-explosive induced shock wave propagation in a closed space2019

    • Author(s)
      K. Ohtani, T. Ogawa, A. Abe, A. Nakagawa
    • Organizer
      The 32nd International Symposium on Shock Waves (ISSW32)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Visualization of flow field around the underwater explosion2018

    • Author(s)
      K. Kitagawa, K. Ohtani
    • Organizer
      The 18th International Symposium on Flow Visualization (ISFV 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 水中閉空間内微小爆薬による衝撃波挙動の数値模擬2018

    • Author(s)
      大谷清伸, 小川俊広
    • Organizer
      火薬学会2018年度春季研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] Attenuation and reduction effect of underwater explosion by porous materials2018

    • Author(s)
      K. Kitagawa, K. Ohtani, Y. Konishi, A. Abe
    • Organizer
      The 15th International Conference on Flow Dynamics (ICFD2018), OS19: The 18th International Symposium on Advanced Fluid Information (AFI-2018) IFS Collaborative Research Forum
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 金属円管内発生水中衝撃波の管厚の影響2018

    • Author(s)
      大谷清伸, 小川俊広
    • Organizer
      火薬学会2018年度秋季研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] 金属管内発生水中衝撃波挙動に関する研究2018

    • Author(s)
      大谷清伸, 小川俊広, 阿部淳, 中川敦寛
    • Organizer
      日本機械学会 M&M2018材料力学カンファレンス
    • Related Report
      2018 Research-status Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi