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Elucidation and control of turbulence-driven secondary flow in a rectangular duct using nonlinear traveling-wave solutions

Research Project

Project/Area Number 22360079
Research Category

Grant-in-Aid for Scientific Research (B)

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

Principal Investigator

KAWAHARA Genta  大阪大学, 大学院・基礎工学研究科, 教授 (50214672)

Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Keywords乱流 / 壁乱流 / 矩形ダクト / 定常進行波解 / 二次流れ / 乱流遷移 / 乱流パフ / 乱流斑点 / 短形ダクト / 国際情報交換(ドイツ:スペイン:カナダ)
Research Abstract

In this study, numerical computation of nonlinear traveling-wave solutions has been performed using a Newton method in a square duct. We have succeeded in obtaining the steady traveling-wave solutionexhibiting an eight-vortex pattern similar to the turbulence-driven mean secondary flow. The streamwise-averaged velocity field of this traveling wave has a comparable intensity of the time- and streamwise-averaged turbulent velocity field, and in low-Reynolds-number range, Re=1400-2500, the traveling wave reproduces not only qualitative but also quantitative properties of turbulence-driven mean secondary flow. We have also worked on numerical computation of nonlinear-traveling waves in a rectangular duct. The eight-vortex traveling wave found in a square duct has been tracked with changing anaspect ratio of a duct cross-section. It has been found that at Re=1200, the eight-vortex traveling wave exists only for the aspect ratio smaller than 2.4. It has also been observed that when the aspect ratio is increased from unity, vertical structures in the traveling wave are localized around the bisector of the duct wall of wider span. Direct numerical simulations of turbulent square-duct flow have been performed at higher Reynolds numbers, Re=3500, 5480, to identify large-scale streamwise rolls by using the Clebsch potential for cross-stream turbulence motion. It has been suggested that the large-scale rolls of a variety of cross-stream length scales play a significant role in the generation of the mean secondary flow in high-Reynolds-number turbulence.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (114 results)

All 2013 2012 2011 2010 Other

All Journal Article (12 results) (of which Peer Reviewed: 12 results) Presentation (97 results) (of which Invited: 4 results) Book (4 results) Remarks (1 results)

  • [Journal Article] Numerical computation of unstable periodic solutions to a system of equations of fluid motion2012

    • Author(s)
      G. Kawahara
    • Journal Title

      American Mathematical Society Sugaku Expositions

      Volume: Vol. 25 Pages: 177-188

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] The significance of simple invariant solutions in turbulent flows2012

    • Author(s)
      G. Kawahara, M. Uhlmann, L. van Veen
    • Journal Title

      Annual Review of Fluid Mechanics

      Volume: Vol. 44 Pages: 203-225

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Numerical computation of unstable periodic solutions to a system of equations of fluid motion2012

    • Author(s)
      Genta Kawahara
    • Journal Title

      American Mathematical Society Sugaku Expositions

      Volume: 25 Pages: 177-188

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The significance of simple invariant solutions in turbulent flows2012

    • Author(s)
      G.Kawahara, M.Uhlmann, L.van Veen
    • Journal Title

      Annual Review of Fluid Mechanics

      Volume: 44 Issue: 1 Pages: 203-225

    • DOI

      10.1146/annurev-fluid-120710-101228

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Homoclinic tangle on the edge of shear turbulence2011

    • Author(s)
      L. van Veen, G. Kawahara
    • Journal Title

      Physical Review Letters

      Volume: Vol. 17 Pages: 114501-114501

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Turbulence- and buoyancy-driven secondary flow in a horizontal square duct heated from below2011

    • Author(s)
      A. Sekimoto, G. Kawahara, K. Sekiyama, M. Uhlmann, A. Pinelli
    • Journal Title

      Physics of Fluids

      Volume: Vol. 23 Pages: 75103-75103

    • NAID

      110008460036

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] A. Matsumura, On matrix-free computation of 2D unstable manifolds2011

    • Author(s)
      L. van Veen, G. Kawahara
    • Journal Title

      SIAM Journal on Scientific Computing

      Volume: Vol. 33 Pages: 25-44

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Turbulence- and buoyancy-driven secondary flow in a horizontal square duct heated from below2011

    • Author(s)
      A.Sekimoto, G.Kawahara, K.Sekiyama, M.Uhlmann, A.Pinelli
    • Journal Title

      Physics of Fluids

      Volume: 23 Issue: 7

    • DOI

      10.1063/1.3593462

    • NAID

      110008460036

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Homoclinic tangle on the edge of shear turbulence2011

    • Author(s)
      L.van Veen, G.Kawahara
    • Journal Title

      Physical Review Letters

      Volume: 107 Issue: 11

    • DOI

      10.1103/physrevlett.107.114501

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On matrix-free computation of 2D unstable-manifolds2011

    • Author(s)
      L.van Veen, G.Kawahara, A.Matsumura
    • Journal Title

      SIAM Journal on Scientific Computing

      Volume: 33 Pages: 25-44

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Traveling-waves consistent with turbulence-driven secondary flow in a square duct2010

    • Author(s)
      M. Uhlmann, G. Kawahara, A. Pinelli
    • Journal Title

      Physics of Fluids

      Volume: Vol. 22 Pages: 84102-84102

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Traveling-waves consistent with turbulence driven secondary flow in a square duct2010

    • Author(s)
      M.Uhlmann, G.Kawahara, A.Pinelli
    • Journal Title

      Physics of Fluids

      Volume: 22

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] The splitting of a turbulent puff in pipe flow2013

    • Author(s)
      M. Shimizu, P. Manneville, Y. Duguet, G. Kawahara
    • Organizer
      IUTAM Symposium on Vortex Dynamics: Formation, Structure and Function
    • Place of Presentation
      九州大学(福岡県)
    • Year and Date
      2013-03-13
    • Related Report
      2012 Final Research Report
  • [Presentation] Large-eddy simulation of hyperbolic stagnation-point flow2013

    • Author(s)
      T. Yasuda, G. Kawahara, S. Goto
    • Organizer
      IUTAM Symposium on Vortex Dynamics: Formation, Structure and Function
    • Place of Presentation
      九州大学(福岡県)
    • Year and Date
      2013-03-13
    • Related Report
      2012 Final Research Report
  • [Presentation] The onset Reynolds number of transient turbulence in minimal plane Couette flow2013

    • Author(s)
      G. Kawahara
    • Organizer
      Turbulence Seminar Imperial College(招待講演)
    • Place of Presentation
      Imperial College London(イギリス)
    • Year and Date
      2013-03-04
    • Related Report
      2012 Final Research Report
  • [Presentation] Characterization of transient plane Couette turbulence in terms of homoclinic tangle2013

    • Author(s)
      G. Kawahara
    • Organizer
      LIMSI-CNRS Seminar(招待講演)
    • Place of Presentation
      LIMSI-CNRS(フランス)
    • Year and Date
      2013-02-27
    • Related Report
      2012 Final Research Report
  • [Presentation] 正方形ダクト乱流の大規模循環流と平均二次流れ2013

    • Author(s)
      河原源太,中辻竜也,清水雅樹 ,M. Uhlmann,A. Pinelli
    • Place of Presentation
      京都大学(京都府)
    • Year and Date
      2013-01-11
    • Related Report
      2012 Final Research Report
  • [Presentation] 乱流中の多重スケール秩序構造の生成過程2013

    • Author(s)
      後藤晋,河原源太,安田達哉
    • Organizer
      京都大学数理解析研究所研究集会「多重物理・多重スケール 乱流現象の数理」
    • Place of Presentation
      京都大学(京都府)
    • Year and Date
      2013-01-10
    • Related Report
      2012 Final Research Report
  • [Presentation] 乱流中の多重スケール秩序構造の生成過程2013

    • Author(s)
      後藤晋,河原源太,安田達哉
    • Organizer
      京都大学数理解析研究所研究集会「多重物理・多重スケール乱流現象の数理」
    • Place of Presentation
      京都大学(京都府)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 正方形ダクト乱流の大規模循環流と平均二次流れ2013

    • Author(s)
      河原源太,中辻竜也,清水雅樹 ,M. Uhlmann,A. Pinelli
    • Organizer
      京都大学数理解析研究所研究集会「多重物理・多重スケール乱流現象の数理」
    • Place of Presentation
      京都大学(京都府)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Characterization of transient plane Couette turbulence in terms of homoclinic tangle2013

    • Author(s)
      G. Kawahara
    • Organizer
      LIMSI-CNRS Seminar
    • Place of Presentation
      LIMSI-CNRS(フランス)
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] The onset Reynolds number of transient turbulence in minimal plane Couette flow2013

    • Author(s)
      G. Kawahara
    • Organizer
      Turbulence Seminar Imperial College
    • Place of Presentation
      Imperial College London(イギリス)
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Large-eddy simulation of hyperbolic stagnation-point flow2013

    • Author(s)
      T. Yasuda, G. Kawahara, S. Goto
    • Organizer
      IUTAM Symposium on Vortex Dynamics: Formation, Structure and Function
    • Place of Presentation
      九州大学(福岡県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] The splitting of a turbulent puff in pipe flow2013

    • Author(s)
      M. Shimizu, P. Manneville, Y. Duguet and G. Kawahara
    • Organizer
      IUTAM Symposium on Vortex Dynamics: Formation, Structure and Function
    • Place of Presentation
      九州大学(福岡県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 安定温度成層下における水平正方形ダクトの乱流パフ2012

    • Author(s)
      大槻赳之,河原源太,M. Uhlmann,A. Pinelli
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Year and Date
      2012-11-18
    • Related Report
      2012 Final Research Report
  • [Presentation] 定常外力に駆動される一様乱流中の秩序構造2012

    • Author(s)
      後藤晋,安田達哉,河原源太
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Year and Date
      2012-11-18
    • Related Report
      2012 Final Research Report
  • [Presentation] 歳差運動する球体容器内に維持される界面活性剤水溶液の乱流2012

    • Author(s)
      山登将宏,後藤晋,堀本康文,河原源太
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Year and Date
      2012-11-17
    • Related Report
      2012 Final Research Report
  • [Presentation] 円管内乱流パフの分裂2012

    • Author(s)
      清水雅樹,P. Manneville,Y. Dugue t,河原源太
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Year and Date
      2012-11-17
    • Related Report
      2012 Final Research Report
  • [Presentation] 矩形ダクト流における局在乱れ構造2012

    • Author(s)
      武石惠介,大西健之,河原源太,M. Uhlmann
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Year and Date
      2012-11-17
    • Related Report
      2012 Final Research Report
  • [Presentation] 双曲型淀み点流に生じる発達した乱流のLES2012

    • Author(s)
      安田達哉,河原源太,後藤晋
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Year and Date
      2012-11-17
    • Related Report
      2012 Final Research Report
  • [Presentation] Exploration into an unstable periodic orbit in large-eddy simulation of plane Couette flow2012

    • Author(s)
      G. Kawahara
    • Organizer
      Departamento de Motopropulsion y Termofluidodinamica Seminario(招待講演)
    • Place of Presentation
      Universidad Politecnica de Madrid(スペイン)
    • Year and Date
      2012-10-02
    • Related Report
      2012 Final Research Report
  • [Presentation] The splitting of a turbulent puff in pipe flow2012

    • Author(s)
      M. Shimizu, P. Manneville, Y. Duguet, G. Kawahara
    • Organizer
      JSST 2012 International Conference on Simulation Technology
    • Place of Presentation
      神戸大学(兵庫県)
    • Year and Date
      2012-09-28
    • Related Report
      2012 Final Research Report
  • [Presentation] Puff-spot transition in rectangular-duct flow2012

    • Author(s)
      K. Takeishi, G. Kawahara, M. Uhlmann, A. Pinelli, S. Goto
    • Organizer
      JSST 2012 International Conference on Simulation Technology
    • Place of Presentation
      神戸大学(兵庫県)
    • Year and Date
      2012-09-28
    • Related Report
      2012 Final Research Report
  • [Presentation] Continuous spin-up and dynamo in a precessing sphere2012

    • Author(s)
      Y. Koike, M. Shimizu, S. Kida, G. Kawahara, S. Goto
    • Organizer
      JSST 2012 International Conference on Simulation Technology
    • Place of Presentation
      神戸大学(兵庫県)
    • Year and Date
      2012-09-28
    • Related Report
      2012 Final Research Report
  • [Presentation] Turbulent puffs in a horizontal square duct under stable temperature stratification2012

    • Author(s)
      T. Otsuki, G. Kawahara, M. Uhlmann, A. Pinelli
    • Organizer
      7th International Symposium on Turbulence, Heat and Mass Transfer
    • Place of Presentation
      University of Palermo(イタリア)
    • Year and Date
      2012-09-24
    • Related Report
      2012 Final Research Report
  • [Presentation] Coherent structures in homogeneous turbulence sustained by steady force2012

    • Author(s)
      S. Goto, G. Kawahara, T. Yasuda
    • Organizer
      9th International Conference on Flow Dynamics
    • Place of Presentation
      ホテルメトロポリタン仙台(宮城県)
    • Year and Date
      2012-09-21
    • Related Report
      2012 Final Research Report
  • [Presentation] Global bifurcations and the onset of turbulence in shear flows2012

    • Author(s)
      L. van Veen, G. Kawahara
    • Organizer
      9th International Conference on Flow Dynamics
    • Place of Presentation
      ホテルメトロポリタン仙台(宮城県).
    • Year and Date
      2012-09-21
    • Related Report
      2012 Final Research Report
  • [Presentation] 円管内乱流パフの分裂2012

    • Author(s)
      清水雅樹,P. Manneville,Y. Dugue t,河原源太
    • Organizer
      日本流体力学会年会2012
    • Place of Presentation
      高知大学(高知県)
    • Year and Date
      2012-09-18
    • Related Report
      2012 Final Research Report
  • [Presentation] 正方形ダクト乱流の大規模構造と二次流れ2012

    • Author(s)
      河原源太,中辻竜也,清水雅樹,M. Uhlmann,A. Pinelli
    • Organizer
      日本流体力学会年会2012
    • Place of Presentation
      高知大学(高知県)
    • Year and Date
      2012-09-17
    • Related Report
      2012 Final Research Report
  • [Presentation] 矩形ダクト乱流への実験および数値シミュレーションによるアプローチ2012

    • Author(s)
      河原源太
    • Organizer
      日本機械学会2012年度年次大会(招待講演)
    • Place of Presentation
      金沢大学(石川県)
    • Year and Date
      2012-09-12
    • Related Report
      2012 Final Research Report
  • [Presentation] 乱流場における運動量と熱輸送の非相似性に及ぼすスパン方向渦度の影響2012

    • Author(s)
      加藤健司,脇本辰郎, 河原源太
    • Organizer
      日本機械学会2012年度年次大会
    • Place of Presentation
      金沢大学(石川県)
    • Year and Date
      2012-09-10
    • Related Report
      2012 Final Research Report
  • [Presentation] 正方形ダクトにおける乱流構造と二次流れ2012

    • Author(s)
      河原源太,中辻竜也,清水雅樹,M. Uhlmann,A. Pinelli
    • Organizer
      日本機械学会2012年度年次大会
    • Place of Presentation
      金沢大学(石川県)
    • Year and Date
      2012-09-10
    • Related Report
      2012 Final Research Report
  • [Presentation] The appearance of homoclinic tangle in plane Couette flow2012

    • Author(s)
      G. Kawahara, L. van Veen
    • Organizer
      ICTAM 2012
    • Place of Presentation
      北京国家会議センター(中国)
    • Year and Date
      2012-08-23
    • Related Report
      2012 Final Research Report
  • [Presentation] 等方乱流の統計的性質を再現する周期運動の動力学とエネルギー伝達2012

    • Author(s)
      安田達哉,河原源太,木田重雄,L. van Veen,清水雅樹
    • Organizer
      日本機械学会関西支部第87期定時総会講演会
    • Place of Presentation
      関西大学(大阪府)
    • Year and Date
      2012-03-17
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] Turbulence structures in rectangular-duct flow2012

    • Author(s)
      G. Kawahara
    • Organizer
      Ladhyx Seminar(招待講演)
    • Place of Presentation
      Ecole Polytechnique(フランス)
    • Year and Date
      2012-03-01
    • Related Report
      2012 Final Research Report
  • [Presentation] Turbulence structures in rectangular-duct flow2012

    • Author(s)
      G.Kawahara
    • Organizer
      Ladhyx Seminar
    • Place of Presentation
      Ecole Polytechnique(フランス)(招待講演)
    • Year and Date
      2012-03-01
    • Related Report
      2011 Annual Research Report
  • [Presentation] 矩形ダクトにおける空間局在乱流構造2012

    • Author(s)
      河原源太,若林弘輝,武石恵介,M. Uhlmann
    • Organizer
      京都大学数理解析研究所共同研究集会「乱流の普遍性と個別性:流体乱流を通して宇宙を見る」
    • Place of Presentation
      京都大学(京都府)
    • Year and Date
      2012-01-13
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] The appearance of homoclinic tangle in plane Couette flow2012

    • Author(s)
      G. Kawahara, L. van Veen
    • Organizer
      ICTAM 2012
    • Place of Presentation
      北京国家会議センター(中国)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 正方形ダクトにおける乱流構造と二次流れ2012

    • Author(s)
      河原源太,中辻竜也,清水雅樹,ウルマン マルクス,ピネリ アルフレド
    • Organizer
      日本機械学会2012年度年次大会
    • Place of Presentation
      金沢大学(石川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 乱流場における運動量と熱輸送の非相似性に及ぼすスパン方向渦度の影響2012

    • Author(s)
      加藤健司,脇本辰郎, 河原源太
    • Organizer
      日本機械学会2012年度年次大会
    • Place of Presentation
      金沢大学(石川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 矩形ダクト乱流への実験および数値シミュレーションによるアプローチ2012

    • Author(s)
      河原源太
    • Organizer
      日本機械学会2012年度年次大会
    • Place of Presentation
      金沢大学(石川県)
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] 正方形ダクト乱流の大規模構造と二次流れ2012

    • Author(s)
      河原源太,中辻竜也,清水雅樹,M. Uhlmann,A. Pinelli
    • Organizer
      日本流体力学会年会2012
    • Place of Presentation
      高知大学(高知県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 円管内乱流パフの分裂2012

    • Author(s)
      清水雅樹,P. Manneville,Y. Duguet,河原源太
    • Organizer
      日本流体力学会年会2012
    • Place of Presentation
      高知大学(高知県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Coherent structures in homogeneous turbulence sutained by steady force2012

    • Author(s)
      S. Goto, G. Kawahara, T. Yasuda
    • Organizer
      9th International Conference on Flow Dynamics
    • Place of Presentation
      ホテルメトロポリタン仙台(宮城県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Turbulent puffs in a horizontal square duct under stable temperature stratification2012

    • Author(s)
      T. Otsuki, G. Kawahara, M. Uhlmann, A. Pinelli
    • Organizer
      7th International Symposium on Turbulence, Heat and Mass Transfer
    • Place of Presentation
      University of Palermo(イタリア)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Continuous spin-up and dynamo in a precessing sphere2012

    • Author(s)
      Y. Koike, M. Shimizu, S. Kida, G. Kawahara, S. Goto
    • Organizer
      JSST 2012 International Conference on Simulation Technology
    • Place of Presentation
      神戸大学(兵庫県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Puff-spot transition in rectangular-duct flow2012

    • Author(s)
      K. Takeishi, G. Kawahara, M. Uhlmann, A. Pinelli, S. Goto
    • Organizer
      JSST 2012 International Conference on Simulation Technology
    • Place of Presentation
      神戸大学(兵庫県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] The splitting of a turbulent puff in pipe flow2012

    • Author(s)
      M. Shimizu, P. Manneville, Y. Duguet and G. Kawahara
    • Organizer
      JSST 2012 International Conference on Simulation Technology
    • Place of Presentation
      神戸大学(兵庫県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Exploration into an unstable periodic orbit in large-eddy simulation of plane Couette flow2012

    • Author(s)
      G. Kawahara
    • Organizer
      Departamento de Motopropulsion y Termofluidodinamica Seminario
    • Place of Presentation
      Universidad Politecnica de Madrid(スペイン)
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] 双曲型淀み点流に生じる発達した乱流のLES2012

    • Author(s)
      安田達哉,河原源太,後藤晋
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 矩形ダクト流における局在乱れ構造2012

    • Author(s)
      武石惠介,大西健之,河原源太,M. Uhlmann
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 円管内乱流パフの分裂2012

    • Author(s)
      清水雅樹,P. Manneville,Y. Duguet,河原源太
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 歳差運動する球体容器内に維持される界面活性剤水溶液の乱流2012

    • Author(s)
      山登将宏,後藤晋,堀本康文,河原源太
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 定常外力に駆動される一様乱流中の秩序構造2012

    • Author(s)
      後藤晋,安田達哉,河原源太
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 安定温度成層下における水平正方形ダクトの乱流パフ2012

    • Author(s)
      大槻赳之,河原源太,ウルマン マルクス,ピネリ アルフレド
    • Organizer
      第90期日本機械学会流体工学部門講演会
    • Place of Presentation
      同志社大学(京都府)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 正方形ダクト流における大規模乱流構造の同定と解析2011

    • Author(s)
      中辻竜也,河原源太,清水雅樹,M. Uhlmann,A. Pinelli
    • Organizer
      第25回数値流体力学シンポジウム
    • Place of Presentation
      大阪大学(大阪府)
    • Year and Date
      2011-12-20
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] 乱流および乱流遷移現象に対する力学系的アプローチ2011

    • Author(s)
      河原源太
    • Organizer
      RIMS 共同研究「偏微分方程式の背後にある確率過程と解の族が示す統計力学的な現象の解析」(招待講演)
    • Place of Presentation
      京都大学(京都府)
    • Year and Date
      2011-12-20
    • Related Report
      2012 Final Research Report
  • [Presentation] 乱流および乱流遷移現象に対する力学系的アプローチ2011

    • Author(s)
      河原源太
    • Organizer
      RIMS共同研究「偏微分方程式の背後にある確率過程と解の族が示す統計力学的な現象の解析」
    • Place of Presentation
      京都大学(京都府)(招待講演)
    • Year and Date
      2011-12-20
    • Related Report
      2011 Annual Research Report
  • [Presentation] Turbulence structures in rectangular-duct flow at low Reynolds numbers2011

    • Author(s)
      G. Kawahara
    • Organizer
      Departamento de Motopropulsion y Termofluidodinamica Seminario(招待講演)
    • Place of Presentation
      Universidad Politecnica de Madrid(スペイン)
    • Year and Date
      2011-10-05
    • Related Report
      2012 Final Research Report
  • [Presentation] Turbulence structures in rectangular-duct flow at low Reynolds numbers2011

    • Author(s)
      G.Kawahara
    • Organizer
      Departamento de Motopropulsion y Termofluidodinamica Seminario
    • Place of Presentation
      Universidad Politecnica de Madrid(スペイン)(招待講演)
    • Year and Date
      2011-10-05
    • Related Report
      2011 Annual Research Report
  • [Presentation] Coherent structures and secondary flow in square-duct turbulence2011

    • Author(s)
      G. Kawahara
    • Organizer
      Turbulence Colloquium Marseille 2011(招待講演)
    • Place of Presentation
      Centre International de Rencontres Mathematiques(フランス)
    • Year and Date
      2011-09-27
    • Related Report
      2012 Final Research Report
  • [Presentation] Coherent structures and secondary flow in square-duct turbulence2011

    • Author(s)
      G.Kawahara
    • Organizer
      Turbulence Colloquium Marseille 2011
    • Place of Presentation
      Centre International de Rencontres Mathematiques(フランス)(招待講演)
    • Year and Date
      2011-09-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] ミニマル平面クエット流におけるホモクリニック軌道2011

    • Author(s)
      河原源太,L. van Veen
    • Organizer
      日本機械学会2011年度年次大会
    • Place of Presentation
      東京工業大学(東京都)
    • Year and Date
      2011-09-13
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] 等方乱流の統計的性質を再現する周期運動の動力学2011

    • Author(s)
      安田達哉,河原源太,木田重雄,L. van Veen
    • Organizer
      日本流体力学会年会2011
    • Place of Presentation
      首都大学東京(東京都)
    • Year and Date
      2011-09-08
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] 平面クエット乱流におけるホモクリニック軌道とバースト2011

    • Author(s)
      河原源太,L. van Veen
    • Organizer
      日本流体力学会年会2011
    • Place of Presentation
      首都大学東京(東京都)
    • Year and Date
      2011-09-07
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
  • [Presentation] Structures of low-Reynolds-number turbulence in a rectangular duct2011

    • Author(s)
      G. Kawahara
    • Organizer
      Geophysical Fluid Dynamics Program(招待講演)
    • Place of Presentation
      Woods Hole Oceanographic Institution(アメリカ)
    • Year and Date
      2011-06-27
    • Related Report
      2012 Final Research Report
  • [Presentation] Structures of low-Reynolds-number turbulence in a rectangular duct2011

    • Author(s)
      G.Kawahara
    • Organizer
      Geophysical Fluid Dynamics Program
    • Place of Presentation
      Woods Hole Oceanographic Institution(アメリカ)(招待講演)
    • Year and Date
      2011-06-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] A homoclinic tangle on the edge of Couette turbulence2011

    • Author(s)
      L. van Veen, G. Kawahara
    • Organizer
      SIAM Conference on Applications of Dynamical Systems(招待講演)
    • Place of Presentation
      Snowbird Ski and Summer Resort(アメリカ)
    • Year and Date
      2011-05-25
    • Related Report
      2012 Final Research Report
  • [Presentation] Spatially localized turbulence structures in transitional rectangular-duct flow2011

    • Author(s)
      G. Kawahara, H. Wakabayashi, M. Uhlmann, A. Pinelli
    • Organizer
      SIAM Conference on Applications of Dynamical Systems(招待講演)
    • Place of Presentation
      Snowbird Ski and Summer Resort(アメリカ)
    • Year and Date
      2011-05-25
    • Related Report
      2012 Final Research Report
  • [Presentation] Spatially localized turbulence structures in transitional rectangular-duct flow2011

    • Author(s)
      G.Kawahara, H.Wakabayashi, M.Uhlmann, A.Pinelli
    • Organizer
      SIAM Conference on Applications of Dynamical Systems
    • Place of Presentation
      Snowbird Ski and Summer Resort(アメリカ)(招待講演)
    • Year and Date
      2011-05-25
    • Related Report
      2011 Annual Research Report
  • [Presentation] A homoclinic tangle on the edge of Couette turbulence2011

    • Author(s)
      L.van Veen, G.Kawahara
    • Organizer
      SIAM Conference on Applications of Dynamical Systems
    • Place of Presentation
      Snowbird Ski and Summer Resort(アメリカ)(招待講演)
    • Year and Date
      2011-05-25
    • Related Report
      2011 Annual Research Report
  • [Presentation] 不安定温度成層下における矩形ダクト乱流の長周期変動2011

    • Author(s)
      中辻竜也,大槻赳之,河原源太
    • Organizer
      日本機械学会関西支部第86期定時総会講演会
    • Place of Presentation
      京都工芸繊維大学(京都府)
    • Year and Date
      2011-03-20
    • Related Report
      2012 Final Research Report
  • [Presentation] 安定温度成層下における正方形ダクトの乱流パフ2011

    • Author(s)
      大槻赳之,関山和英,清水雅樹,河原源太
    • Organizer
      日本機械学会関西支部第86期定時総会講演会
    • Place of Presentation
      京都工芸繊維大学(京都府)
    • Year and Date
      2011-03-20
    • Related Report
      2012 Final Research Report
  • [Presentation] 安定温度成層下における正方形ダクトの乱流パフ2011

    • Author(s)
      大槻赳之, 関山和英, 清水雅樹, 河原源太
    • Organizer
      日本機械学会関西支部第86期定時総会講演会
    • Place of Presentation
      京都工芸繊維大学
    • Year and Date
      2011-03-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] 不安定温度成層下における矩形ダクト乱流の長周期変動2011

    • Author(s)
      中辻竜也, 大槻赳之, 河原源太
    • Organizer
      日本機械学会関西支部第86期定時総会講演会
    • Place of Presentation
      京都工芸繊維大学
    • Year and Date
      2011-03-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] 乱流パフの普遍性について2011

    • Author(s)
      清水雅樹,若林弘輝,河原源太,M. Uhlmann
    • Organizer
      日本機械学会関西支部第86期定時総会講演会
    • Place of Presentation
      京都工芸繊維大学(京都府)
    • Year and Date
      2011-03-19
    • Related Report
      2012 Final Research Report
  • [Presentation] 矩形ダクトにおける空間局在乱流構造2011

    • Author(s)
      若林弘輝,関本敦,清水雅樹,M. Uhlmann,河原源太
    • Organizer
      日本機械学会関西支部第86期定時総会講演会
    • Place of Presentation
      日本機械学会関西支部第86期定時総会講演会
    • Year and Date
      2011-03-19
    • Related Report
      2012 Final Research Report
  • [Presentation] 周期運動の安定化による平面クエット乱流の抵抗低減2011

    • Author(s)
      鶴田真裕,河原源太,森学
    • Organizer
      日本機械学会関西支部第86期定時総会講演会
    • Place of Presentation
      京都工芸繊維大学(京都府)
    • Year and Date
      2011-03-19
    • Related Report
      2012 Final Research Report
  • [Presentation] 周期運動の安定化による平面クエット乱流の抵抗低減2011

    • Author(s)
      鶴田真裕, 河原源太, 森学
    • Organizer
      日本機械学会関西支部第86期定時総会講演会
    • Place of Presentation
      京都工芸繊維大学
    • Year and Date
      2011-03-19
    • Related Report
      2010 Annual Research Report
  • [Presentation] 矩形ダクトにおける空間局在乱流構造2011

    • Author(s)
      若林弘輝, 関本敦, 清水雅樹, M.Uhlmann, 河原源太
    • Organizer
      日本機械学会関西支部第86期定時総会講演会
    • Place of Presentation
      京都工芸繊維大学
    • Year and Date
      2011-03-19
    • Related Report
      2010 Annual Research Report
  • [Presentation] 乱流パフの普遍性について2011

    • Author(s)
      清水雅樹, 若林弘輝, 河原源太, M.Uhlmann
    • Organizer
      日本機械学会関西支部第86期定時総会講演会
    • Place of Presentation
      京都工芸繊維大学
    • Year and Date
      2011-03-19
    • Related Report
      2010 Annual Research Report
  • [Presentation] 正方形ダクト乱流の二次流れ2011

    • Author(s)
      河原源太,関本敦,Uhlmann,A. Pinelli
    • Organizer
      京都大学数理解析研究所共同研究集会
    • Place of Presentation
      京都大学(京都府)
    • Year and Date
      2011-01-14
    • Related Report
      2012 Final Research Report
  • [Presentation] 正方形ダクト乱流の二次流れ2011

    • Author(s)
      河原源太, 関本敦, Uhlmann, A.Pinelli
    • Organizer
      京都大学数理解析研究所共同研究集会
    • Place of Presentation
      京都大学
    • Year and Date
      2011-01-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] An introduction to the problem of fluid turbulence2010

    • Author(s)
      G. Kawahara
    • Organizer
      UOIT Modelling and Computational Science Seminar(招待講演)
    • Place of Presentation
      University of Ontario Institute of Technol ogy(カナダ)
    • Year and Date
      2010-09-28
    • Related Report
      2012 Final Research Report
  • [Presentation] An introduction to the problem of fluid turbulence2010

    • Author(s)
      G.Kawahara
    • Organizer
      UOIT Modelling and Computational Science Seminar
    • Place of Presentation
      University of Ontario Institute of Technology, Canada(招待講演)
    • Year and Date
      2010-09-28
    • Related Report
      2010 Annual Research Report
  • [Presentation] Secondary flow in isothermal and thermal square-duct turbulence2010

    • Author(s)
      G. Kawahara
    • Organizer
      Applied and Interdisciplinary Mathematics Seminar(招待講演)
    • Place of Presentation
      University of Michigan(アメリカ)
    • Year and Date
      2010-09-24
    • Related Report
      2012 Final Research Report
  • [Presentation] Secondary flow in isothermal and thermal square-duct turbulence2010

    • Author(s)
      G.Kawahara
    • Organizer
      Applied and Interdisciplinary Mathematics Seminar
    • Place of Presentation
      University of Michigan, USA(招待講演)
    • Year and Date
      2010-09-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] 周期運動の安定化による低レイノルズ数平面クエット乱流の抵抗低減2010

    • Author(s)
      鶴田真裕,河原源太,森学
    • Organizer
      日本流体力学年会講演会 2010
    • Place of Presentation
      北海道大学(北海道)
    • Year and Date
      2010-09-10
    • Related Report
      2012 Final Research Report
  • [Presentation] 周期運動の安定化による低レイノルズ数平面クエット乱流の抵抗低減2010

    • Author(s)
      鶴田真裕, 河原源太, 森学
    • Organizer
      日本流体力学年会講演会2010
    • Place of Presentation
      北海道大学
    • Year and Date
      2010-09-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] 加熱水平正方形ダクトの乱流・浮力駆動二次流れ2010

    • Author(s)
      河原源太,関本敦,関山和英,M. Uhlmann,A. Pinelli
    • Organizer
      日本流体力学年会講演会 2010
    • Place of Presentation
      北海道大学(北海道)
    • Year and Date
      2010-09-09
    • Related Report
      2012 Final Research Report
  • [Presentation] 加熱水平正方形ダクトの乱流・浮力駆動二次流れ2010

    • Author(s)
      河原源太, 関本敦, 関山和英, M.Uhlmann, A.Pinelli
    • Organizer
      日本流体力学年会講演会2010
    • Place of Presentation
      北海道大学
    • Year and Date
      2010-09-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] 水平正方形ダクトにおける乱流・浮力駆動二次流れ2010

    • Author(s)
      河原源太,関本敦,M. Uhlmann,A. Pinelli
    • Organizer
      日本機械学会2010 年度年次大会講演会
    • Place of Presentation
      名古屋工業大学(愛知県)
    • Year and Date
      2010-09-06
    • Related Report
      2012 Final Research Report
  • [Presentation] 水平平板間乱流における乱れ構造への浮力の影響-レイノルズ数依存性2010

    • Author(s)
      池戸隆人,河原源太,藤定義
    • Organizer
      日本機械学会2010 年度年次大会講演会
    • Place of Presentation
      名古屋工業大学(愛知県)
    • Year and Date
      2010-09-06
    • Related Report
      2012 Final Research Report
  • [Presentation] 水平平板間乱流における乱れ構造への浮力の影響-レイノルズ数依存性2010

    • Author(s)
      池戸隆人, 河原源太, 藤定義
    • Organizer
      日本機械学会2010年度年次大会講演会
    • Place of Presentation
      名古屋工業大学
    • Year and Date
      2010-09-06
    • Related Report
      2010 Annual Research Report
  • [Presentation] 水平正方形ダクトにおける乱流・浮力駆動二次流れ2010

    • Author(s)
      河原源太, 関本敦, M.Uhlmann, A.Pinelli
    • Organizer
      日本機械学会2010年度年次大会講演会
    • Place of Presentation
      名古屋工業大学
    • Year and Date
      2010-09-06
    • Related Report
      2010 Annual Research Report
  • [Presentation] 矩形ダクト流における乱流パフと乱流斑点-ダクト断面縦横比の影響2010

    • Author(s)
      若林弘輝,関本敦,河原源太,M. Uhlmann,A. Pinelli
    • Organizer
      第59回理論応用力学講演会
    • Place of Presentation
      日本学術会議(東京都)
    • Year and Date
      2010-06-09
    • Related Report
      2012 Final Research Report
  • [Presentation] 矩形ダクト流における乱流パフと乱流斑点-ダクト断面縦横比の影響2010

    • Author(s)
      若林弘輝, 関本敦, 河原源太, M.Uhlmann, A.Pinelli
    • Organizer
      第59回理論応用力学講演会
    • Place of Presentation
      日本学術会議
    • Year and Date
      2010-06-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] 平面クエット流における静穏周期軌道の不安定多様体と乱流遷移2010

    • Author(s)
      河原源太,松村篤,L. van Veen
    • Organizer
      第59回理論応用力学講演会
    • Place of Presentation
      日本学術会議(東京都)
    • Year and Date
      2010-06-08
    • Related Report
      2012 Final Research Report
  • [Presentation] 平面クエット流における静穏周期軌道の不安定多様体と乱流遷移2010

    • Author(s)
      河原源太, 松村篤, L.van Veen
    • Organizer
      第59回理論応用力学講演会
    • Place of Presentation
      日本学術会議
    • Year and Date
      2010-06-08
    • Related Report
      2010 Annual Research Report
  • [Book] Ten Chapters in Turbulence (Capter 6 Dynamics of Wall-Bounded Turbulence)2012

    • Author(s)
      J. Jimenez, G. Kawahara
    • Total Pages
      437
    • Publisher
      Cambridge University Press
    • Related Report
      2012 Final Research Report
  • [Book] Ten Chapters in Turbulence (Capter 6 Dynamics of Wall-Bounded Turbulence)2012

    • Author(s)
      Javier Jimenez, Genta Kawahara
    • Total Pages
      437
    • Publisher
      Cambridge University Press
    • Related Report
      2012 Annual Research Report
  • [Book] 乱流のシミュレーション2010

    • Author(s)
      柳瀬眞一郎,百武徹,河原源太,渡辺毅
    • Total Pages
      232
    • Publisher
      森北出版
    • Related Report
      2012 Final Research Report
  • [Book] 乱流のシミュレーション2010

    • Author(s)
      柳瀬眞一郎, 百武徹, 河原源太, 渡辺毅
    • Publisher
      森北出版
    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www-thermomech.me.es.osaka-u.ac.jp/index.html

    • Related Report
      2012 Final Research Report

URL: 

Published: 2010-08-23   Modified: 2019-07-29  

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