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2010 Fiscal Year Final Research Report

Mechanism of Stationary Shock Wave Instability and Its Application

Research Project

  • PDF
Project/Area Number 21760116
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Fluid engineering
Research InstitutionTohoku University

Principal Investigator

OHNISHI Noafumi  東北大学, 大学院・工学研究科, 准教授 (20333859)

Project Period (FY) 2009 – 2010
Keywords数値流体力学 / 流体力学的不安定性 / 衝撃波 / 超新星爆発 / 造波抵抗低減
Research Abstract

Three-dimensional numerical simulations were conducted using the discontinuous Galerkin (DG) finite-element method to clarify mechanism of bow-shock instability, which has been experimentally observed for a blunt body. The most favorable flux functions and numerical conditions were explored through the comparisons among them. Laser energy deposition that leads to a low-density region ahead of a bow shock was investigated for reducing the wave drag, and the effect of laser input condition was clarified with our developed code.

  • Research Products

    (20 results)

All 2011 2010 2009 Other

All Journal Article (8 results) (of which Peer Reviewed: 4 results) Presentation (11 results) Remarks (1 results)

  • [Journal Article] 弧状衝撃波不安定性の三次元数値流体解析2011

    • Author(s)
      佐藤陽介, 鈴木佑一郎, 保江かな子, 大西直文
    • Journal Title

      平成22年度衝撃波シンポジウム講演論文集

      Pages: 167-168

  • [Journal Article] Thermochemical nonequilibrium flow computation of drag reduction by pulsed laser2010

    • Author(s)
      M. Tate, Y. Ogino, N. Ohnishi
    • Journal Title

      AIAA Paper

      Pages: 2010-1535

  • [Journal Article] 弧状衝撃波不安定性の三次元数値流体解析2010

    • Author(s)
      鈴木佑一郎, 保江かな子, 大西直文
    • Journal Title

      第42回流体力学講演会/航空宇宙シミュレーション技術シンポジウム2010講演論文集

      Pages: 2E10

  • [Journal Article] Stochastic nature of gravitational waves from supernova explosions with standing accretion shock instability2009

    • Author(s)
      K. Kotake, W. Iwakami, N. Ohnishi, S. Yamada
    • Journal Title

      Astrophysical Journal

      Volume: 697巻 Pages: L133-L136

    • Peer Reviewed
  • [Journal Article] Baroclinic vortex influence on wave drag reduction induced by pulse energy deposition2009

    • Author(s)
      Y. Ogino, N. Ohnishi, S. Taguchi, K. Sawada
    • Journal Title

      Physics of Fluids

      Volume: 21巻 Pages: 066102-1-066102-11

    • Peer Reviewed
  • [Journal Article] Effects of rotation on standing accretion shock instability in nonlinear phase for core-collapse supernovae2009

    • Author(s)
      W. Iwakami, K. Kotake, N. Ohnishi, S. Yamada, K. Sawada
    • Journal Title

      Astrophysical Journal

      Volume: 700巻 Pages: 232-242

    • Peer Reviewed
  • [Journal Article] Ray-tracing analysis of anisotropic neutrino radiation for estimating gravitational waves in core-collapse supernovae2009

    • Author(s)
      K. Kotake, W. Iwakami, N. Ohnishi, S. Yamada
    • Journal Title

      Astrophysical Journal

      Volume: 704巻 Pages: 951-963

    • Peer Reviewed
  • [Journal Article] パルスレーザーを用いた衝撃波制御の熱化学非平衡流計算2009

    • Author(s)
      楯真沙美, 荻野要介, 大西直文
    • Journal Title

      第23回数値流体力学シンポジウム講演論文集

      Pages: E8-2

  • [Presentation] 弧状衝撃波不安定性の三次元数値流体解析2011

    • Author(s)
      佐藤陽介, 鈴木佑一郎, 保江かな子, 大西直文
    • Organizer
      平成22年度衝撃波シンポジウム
    • Place of Presentation
      青山学院大学
    • Year and Date
      2011-03-16
  • [Presentation] Trigger physics of gravitationally collapsing supernova explosion in three-dimension and its model experiments2011

    • Author(s)
      N. Ohnishi, et al.
    • Organizer
      3rd Japan-France Workshop and School on High Energy Density Science
    • Place of Presentation
      Les Houches, フランス
    • Year and Date
      2011-01-10
  • [Presentation] Computational study of standing accretion shock instability in core-collapse supernovae2010

    • Author(s)
      N. Ohnishi, W. Iwakami Nakano, K. Kotake, Y. Suzuki, S. Yamada, H. Takabe
    • Organizer
      8th International Conference on High Energy Density Laboratory Astrophysics
    • Place of Presentation
      Pasadena, 米国
    • Year and Date
      20100315-18
  • [Presentation] Thermochemical nonequilibrium flow computation of drag reduction by pulse laser2010

    • Author(s)
      M. Tate, Y. Ogino, N. Ohnishi
    • Organizer
      48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Explosion
    • Place of Presentation
      Orlando, 米国
    • Year and Date
      20100104-07
  • [Presentation] Computational study of stationary shock wave toward a laboratory experiment2010

    • Author(s)
      N. Ohnishi, et al.
    • Organizer
      52nd Annual Meeting of the APS Division of Plasma Physics
    • Place of Presentation
      シカゴ, 米国
    • Year and Date
      2010-11-12
  • [Presentation] Computational study of shock instability and its application2010

    • Author(s)
      N. Ohnishi, et al.
    • Organizer
      China-Japan CUP Seminar on Laser Plasma Physics
    • Place of Presentation
      上海, 中国
    • Year and Date
      2010-10-16
  • [Presentation] Three-dimensional simulation of stationary shock wave instability2010

    • Author(s)
      N. Ohnishi, et al.
    • Organizer
      ISWI 2010: The Shock and High Strain Rate Properties of Matter
    • Place of Presentation
      ケンブリッジ, 英国
    • Year and Date
      2010-09-08
  • [Presentation] 弧状衝撃波不安定性の三次元数値流体解析2010

    • Author(s)
      鈴木佑一郎, 保江かな子, 大西直文
    • Organizer
      第42回流体力学講演会/航空宇宙シミュレーション技術シンポジウム
    • Place of Presentation
      米子コンベンションセンターBiG SHiP
    • Year and Date
      2010-06-25
  • [Presentation] パルスレーザーを用いた衝撃波制御の熱化学非平衡流計算2009

    • Author(s)
      楯真沙美, 荻野要介, 大西直文
    • Organizer
      第23回数値流体力学シンポジウム
    • Place of Presentation
      仙台市
    • Year and Date
      20091216-18
  • [Presentation] Radiation hydrodynamics of explosive phenomena in laboratory and astrophysics2009

    • Author(s)
      N. Ohnishi, Y. Ogino, M. Tate, W. Iwakami Nakano, K. Kotake, S. Yamada
    • Organizer
      Japan-Korea CFD Workshop 2009
    • Place of Presentation
      仙台
    • Year and Date
      20091216-17
  • [Presentation] Computational study of shock wave control by pulse energy deposition2009

    • Author(s)
      N. Ohnishi, M. Tate, Y. Ogino
    • Organizer
      27th International Symposium on Shock Waves
    • Place of Presentation
      St. Petersburg, ロシア
    • Year and Date
      20090719-24
  • [Remarks]

    • URL

      http://www.rhd.mech.tohoku.ac.jp

URL: 

Published: 2013-07-31  

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