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Development of damage mitigation technique on liquid/solid interface by microbubble

Research Project

Project/Area Number 17360085
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

FUTAKAWA Masatoshi  Japan Atomic Energy Agency, J-P-ARC Center, Chief researcher, J-PARCセンター, 研究主席 (90354802)

Co-Investigator(Kenkyū-buntansha) MATSUMOTO Yoichiro  The University of Tokyo, Department of Mechanical Engineering, Professor, 大学院工学研究科, 教授 (60111473)
HASEGAWA Shoichi  Japan Atomic Energy Agency, J-PARC Center, Researcher, J-PARCセンター, 研究員 (90391333)
KOGAWA Hiroyuki  Japan Atomic Energy Agency J-PARC Center, Researcher, J-PARCセンター, 研究員 (00354738)
OKITA Kohei  RIKEN, Center for Intellectual Property Strategies, Reseacher, 知的財産戦略センター, 研究員 (20401135)
FUJIWARA Akiko  The University of Tokyo, Department of Mechanical Engineering, Assistant, 大学院工学研究科, 助手 (40396940)
Project Period (FY) 2005 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥15,800,000 (Direct Cost: ¥15,800,000)
Fiscal Year 2006: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2005: ¥13,000,000 (Direct Cost: ¥13,000,000)
KeywordsMicrobubble / Proton beam / Mercury / Pulsed spallation neutron source / Pressure waves / Cavitation / Pitting damage / Visualization
Research Abstract

This research was performed to understand a mechanism of the cavitation induced in the liquid/solid interface by the pressure waves, to evaluate the pitting damage caused by the cavitation bubble collapse, and to develop the pressure wave mitigation technique by microbubble injection in mercury. The main results are summarized as follows.
(1) The pressure time responses and pitting damage tests were examined using a mercury circulation loop with the impact machine to produce pressure waves in mercury. An amplitude of negative pressure and the pitting damage were reduced by injecting microbubbles into mercury
(2) On-beam tests using proton accelerator at LANSCE were carried out to evaluate the effect of injected microbubbles on the pressure waves in flowing mercury. The dynamic response of displacement at the wall of mercury pipe due to the pressure waves was reduced by injecting bubbles.
(3) The microbubble conditions for pressure wave mitigation was numerically investigated taking account of the absorption and the attenuation effects on pressure wave propagation
(4) The void fraction and the bubble size distribution were measured using an Acoustic Bubble Spectrometer in water-air system to evaluate the issues of acoustic method. The size of relatively large bubble with over 100 p.m in diameter was overestimated and void fraction was underestimated by the acoustic method in comparison with the optical method.
(5) An effect of liquid/solid interfacial force on mercury bubble formation at a tip of nozzle was examined by the high intensity X-lay. It was suggested that the microbubble with 100 u m in diameter, which is effective to mitigate the pressure waves, may be produced by the co-current mercury flow in the nozzle direction.
An establishment of the controllable microbubble injection technique and a quantitative estimation of the fatigue degradation due to mercury immersion were left as the future tasks.

Report

(3 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • Research Products

    (23 results)

All 2007 2006 2005

All Journal Article (21 results) Book (2 results)

  • [Journal Article] 水銀キャビテーションにおける気泡挙動2006

    • Author(s)
      直江 崇, 二川正敏, 小山智史, 粉川広行
    • Journal Title

      日本実験力学会誌 6巻3号

      Pages: 301-307

    • NAID

      10018779831

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Effects of pitting damage on fatigue limit and lifetime in mercury target2006

    • Author(s)
      M.Futakwa, T.Naoe, H.Kogawa, M.Teshigawara, Y.Ikeda
    • Journal Title

      Journal of Nuclear Materials Vol.356

      Pages: 168-177

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Pressure wave issues in high power mercury target2006

    • Author(s)
      M.Futakawa, T.Wakui, H.Kogawa, Y.Ikeda
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A Vol.562

      Pages: 676-679

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] 気泡を含む液体金属中における熱衝撃に伴う圧力波の伝播2006

    • Author(s)
      沖田浩平, 高木 周, 松本洋一郎
    • Journal Title

      日本機械学会論文集B編 72巻716号

      Pages: 885-892

    • NAID

      110004718545

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Bubble behavior in mercury cavitation2006

    • Author(s)
      T.Naoe, M.Futakawa, T.Koyama, H.Kogawa
    • Journal Title

      Journal of JSEM Vol.6, No.3

      Pages: 301-307

    • NAID

      10018779831

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Effects of pitting damage on fatigue limit and lifetime in mercury target2006

    • Author(s)
      M.Futakawa, T.Naoe, H.Kogawa, M.Teshigawara, Y.Ikeda
    • Journal Title

      Journal of nuclear materials Vol.356

      Pages: 168-177

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Propagation of pressure waves, caused by a thermal shock, in liquid metals containing gas bubbles2006

    • Author(s)
      K.Okita, S.Takagi, Y.Matsumoto
    • Journal Title

      Transaction of JSME B Vol.72, No. 716

      Pages: 885-892

    • NAID

      110004718545

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 気泡を含む液体金属中における熱衝撃に伴う圧力波の伝播2006

    • Author(s)
      沖田浩平, 高木周, 松本洋一郎
    • Journal Title

      日本機械学会論文集B編 72巻・716号

      Pages: 885-892

    • NAID

      110004718545

    • Related Report
      2006 Annual Research Report
  • [Journal Article] ピッティング損傷による疲労強度劣化2006

    • Author(s)
      直江崇, 二川正敏, 大井俊之, 涌井隆, 本橋善信
    • Journal Title

      材料 55巻・10号

      Pages: 944-950

    • NAID

      110006570846

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Numerical analysis of mercury cavitation in MW-scale spallation neutron source system2006

    • Author(s)
      N.Tanaka, M.Suzuki, M.Futakawa
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A Vol.562

      Pages: 680-683

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Effects of pitting damage on fatigue limit and lifetime in mercury target2006

    • Author(s)
      M.Futakawa, T.Naoe, H.Kogawa, M.Teshigawara, Y.Ikeda
    • Journal Title

      J. Nuclear Maerials 356

      Pages: 168-177

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 水銀キャビテーションにおける気泡挙動2006

    • Author(s)
      直江崇, 二川正敏, 小山智史, 粉川広行
    • Journal Title

      日本実験力学会誌 6

      Pages: 301-307

    • NAID

      10018779831

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Pitting damage by pressure waves in a mercury target2005

    • Author(s)
      M.Futakwa, T.Naoe, C.C.Tsai, H.Kogawa, S.Ishikura, Y.Ikeda, H.Soyama, H.Date
    • Journal Title

      Journal of Nuclear Materials Vol.343

      Pages: 70-80

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Micro-impact damage caused by mercury bubble collapse2005

    • Author(s)
      M.Futakawa, T.Naoe, H.Kogawa, H.Date, Y.Ikeda
    • Journal Title

      JSME International Journal Vol.48, No.4

      Pages: 234-239

    • NAID

      110004820562

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Pitting damage by pressure waves in a mercury target2005

    • Author(s)
      M.Futakwa, T.Naoe, C.C Tsai, H.Kogawa, S.Ishikura, Y.Ikeda, H.Soyama, H.Date
    • Journal Title

      Journal of Nuclear Materials Vol.343

      Pages: 70-80

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Pitting damage by pressure waves in a mercury target2005

    • Author(s)
      M.Futakawa, T.Naoe, T.T.Tsai, et al.
    • Journal Title

      Journal of Nuclear Materials Vol.343

      Pages: 70-80

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Micro-impact damage caused by Mercury bubble collapse2005

    • Author(s)
      M.Futakawa, T.Naoe, H.Kogawa, H.Date, Y.Ikeda
    • Journal Title

      JSME Int.Journal Vol.48

      Pages: 234-239

    • NAID

      110004820562

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Evaluation of mechanical properties and microstructure in ion-irradiated surface layer2005

    • Author(s)
      T.Naoe, M.Futakawa, et al.
    • Journal Title

      JSME Int.Journal Vol.48

      Pages: 280-285

    • NAID

      110004820570

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 気泡崩壊誘起音響振動を用いた壊食損傷評価2005

    • Author(s)
      直江崇, 二川正敏, 小山智史, 粉川広行, 池田裕二郎
    • Journal Title

      日本実験力学会誌 Vol.5

      Pages: 280-285

    • NAID

      130004489868

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 固/液界面衝突解析モデルによるピッティング損傷評価2005

    • Author(s)
      直江崇, 二川正敏, 大井俊志, 石倉修一, 池田裕二郎
    • Journal Title

      材料 Vol.54

      Pages: 1184-1190

    • NAID

      110006266432

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Steady-State Cavitating Nozzle Flows with Homogenous Nucleation2005

    • Author(s)
      Can F.Delale, K.Okita, Y.Matsumoto
    • Journal Title

      ASME Journal of Fluid Engineering vol.127

      Pages: 770-777

    • Related Report
      2005 Annual Research Report
  • [Book] 核破砕中性子源ターゲットにおける陽子線励起圧力波の抑制技術に関する日米ワークショップ2007

    • Author(s)
      二川正敏
    • Total Pages
      196
    • Publisher
      独立行政法人 日本原子力研究開発機構
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Book] 核破砕中性子源ターゲットにおける陽子線励起圧力波の抑制技術に関する日米ワークショップ2007

    • Author(s)
      二川正敏
    • Total Pages
      196
    • Publisher
      日本原子力研究開発機構
    • Related Report
      2006 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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