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2008 Fiscal Year Final Research Report

Control of the sound generation due to impinging shear layersby the hole-tone feedback cycle

Research Project

  • PDF
Project/Area Number 18560152
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionYamagata University

Principal Investigator

LANGTHJEM M・A  Yamagata University, 大学院・理工研究科, 准教授 (30344815)

Research Collaborator NAKANO Masami  東北大学, 流体科学研究所
Project Period (FY) 2006 – 2008
Keywords音響 / 流力騒音 / 制御
Research Abstract

離散渦法及びPowell・Howe 渦音論(theory of vortex sound)を基づいた三次元の数値解析法を開発した。そのほか、数学的に厳密な軸対称のあるモデルも開発した。

  • Research Products

    (21 results)

All 2009 2008 2007 2006

All Journal Article (11 results) (of which Peer Reviewed: 4 results) Presentation (10 results)

  • [Journal Article] A threedimensionalnumerical study of thehole-tone feedback problem2009

    • Author(s)
      M. A. Langthjem, M. Nakano
    • Journal Title

      Journal of Computational Physics (submitted)

    • Peer Reviewed
  • [Journal Article] Numericalstudy of the hole-tone feedback cyclebased on an axisymmetric formulation2009

    • Author(s)
      M. A. Langthjem, M. Nakano
    • Journal Title

      Fluid Dynamics Research (accepted for publication, in press)

    • Peer Reviewed
  • [Journal Article] Soundgeneration in the hole-tonefeedback problem, RIMS 研究集会2009

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Journal Title

      非線形波動現象の数理と応用, RIMS講研録 1645

      Pages: 221-230

  • [Journal Article] Influenceof non-axisymmetric perturbations onthe hole-tone feedback cycle: Anumerical study(Paper # 279)2009

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Journal Title

      In : Proceedings of Inter・Noise 2006, Honolulu, HI, USA (CD-Rom)

      Pages: 9

  • [Journal Article] The effectof non-axisymmetric flow disturbanceson the sound generation in the holetonefeedback cycle(Paper#10414)2008

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Journal Title

      In : XXIIInternational Congress of Theoreticaland Applied Mechanics (ICTAM 2008) (CD-ROM)

      Pages: 2

    • Peer Reviewed
  • [Journal Article] ホールトンフィードバック問題での自励流体振動の制御[Control of self-sustainedflow oscillations in the hole-tonefeedback problem]2008

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Journal Title

      第51回自動制御連合講演会、論文集 (CD-ROM)

      Pages: 5

  • [Journal Article] Numericalstudy of the hole-tone feedbackcycle2008

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Journal Title

      In : 日本応用数理学会2008年度年会講演予稿集

      Pages: 101-102

  • [Journal Article] Selfsustainedflow-oscillations in thehole-tone problem2008

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Journal Title

      In : 非線形波動現象の数理と応用.数理解析研究所講究録 1594

      Pages: 18-33

  • [Journal Article] A threedimensionalstudy into non-axisymmetricperturbations of the hole-tonefeedback cycle. In : Proceedings of theIUTAM Symposium "Unsteady SeparatedFlows and their Control"2007

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Journal Title

      Corfu,Greece(M. Braza, K.Hourigan, eds.), Springer-Verlag,(ISBN : 978-1-4020-9897-0)

      Pages: 5

    • Peer Reviewed
  • [Journal Article] Control ofsound generation in the hole-tonefeedback cycle by non-axi-symmetricflow perturbations2007

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Journal Title

      In : 日本流体力学会 年会2007講演要旨集 (CD-ROM)

      Pages: 2

  • [Journal Article] A numericalstudy on the influence of non-axisymmetricflow perturbations in thehole-tone feedback problem2007

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Journal Title

      In : 非線形波動現象の数理と応用.数理解析研究所講究録 1543

      Pages: 21-30

  • [Presentation] Aspects of the hole-tone feedback problem2008

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Organizer
      第28回流力シンポジウム
    • Place of Presentation
      東京大学工学部本郷キャンパス
    • Year and Date
      2008-12-06
  • [Presentation] ホールトンフィードバック問題での自励流体振動の制御[Control of self-sustained flow oscillations in the hole-tone feedback problem]2008

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Organizer
      第51回自動制御連合講演会
    • Place of Presentation
      山形大学工学部, 米沢キャンパス
    • Year and Date
      2008-11-22
  • [Presentation] Aspects ofthe hole-tone feedback problem2008

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Organizer
      RIMS研究集会,非線形波動現象の数理と応用
    • Place of Presentation
      京都大学数理研究所
    • Year and Date
      2008-10-23
  • [Presentation] Numericalstudy of the hole-tone feedbackcycle2008

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Organizer
      日本応用数里学会2008年度年会
    • Place of Presentation
      東京大学柏キャンパス
    • Year and Date
      2008-09-17
  • [Presentation] The effectof non-axisymmetric flow disturbanceson the sound generation in the holetonefeedback cycle2008

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Organizer
      XXII InternationalCongress of Theoretical andApplied Mechanics (ICTAM 2008)
    • Year and Date
      2008-08-25
  • [Presentation] A numericalstudy on the influence of non-axisymmetricflow perturbations in thehole-tone feedback problem2007

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Organizer
      RIMS研究集会,非線形波動現象の数理と応用
    • Place of Presentation
      京都大学数理研究所
    • Year and Date
      2007-10-30
  • [Presentation] Nakano, POD-basedanalysis of self-sustained flowoscillationsin the hole-tone problem2007

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Organizer
      RIMS研究集会,非線形波動現象の数理と応用
    • Place of Presentation
      京都大学数理研究所
    • Year and Date
      2007-09-18
  • [Presentation] Control ofsound generation in the hole-tonefeedback cycle by non-axi-symmetricflow perturbations2007

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Organizer
      日本流体力学会年会2007年度
    • Place of Presentation
      東京大学教養学部
    • Year and Date
      2007-08-07
  • [Presentation] IUTAM Symposium"Unsteady Separated Flows and theirControl"2007

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Organizer
      A threedimensionalstudy into non-axisymmetricperturbations of the hole-tonefeedback cycle
    • Place of Presentation
      Corfu, Greece
    • Year and Date
      2007-06-20
  • [Presentation] Influenceof non-axisymmeric perturbations onthe hole-tone feedback cycle : Anumerical study2006

    • Author(s)
      M.A. Langthjem, M. Nakano
    • Organizer
      Inter・Noise 2006
    • Place of Presentation
      Honolulu, HI, USA
    • Year and Date
      2006-12-06

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Published: 2010-06-10   Modified: 2016-04-21  

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