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

RESEARCH ON THE GENERATION OF LONGITUDINAL VORTICES AND ITS CONTROL IN TURBULENT SHEAR FLOWS

Research Project

Project/Area Number 03302031
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field Fluid engineering
Research InstitutionEHIME UNIVERSITY

Principal Investigator

AYUKAWA Kyozo  EHIME UNIV., DEPT. FAC. ENGNG., PROFESSOR, 工学部, 教授 (30036230)

Co-Investigator(Kenkyū-buntansha) OHNARI Hirohumi  TOKUYAMA COLLEGE, PROFESSOR, 教授 (30045041)
USUI Hiromoto  YAMAGUCHI UNIV., DEPT. FAC. ENGNG., PROFESSOR, 工学部, 教授 (20107725)
OSAKA Hideo  YAMAGUCHI UNIV., DEPT. FAC. ENGNG., PROFESSOR, 工学部, 教授 (90024611)
SAITOU Takashi  YAMAGUCHI UNIV., DEPT. FAC. ENGNG., PROFESSOR, 工学部, 教授 (40035035)
Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥8,100,000 (Direct Cost: ¥8,100,000)
Fiscal Year 1992: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 1991: ¥5,200,000 (Direct Cost: ¥5,200,000)
KeywordsFluids engineering / Turbulence / Shear flow / Longitudinal vortex / Coherent structure / Secondary flow / Complicated channel / Control / 乱流せん断流 / 乱流二次流れ / 湾曲流 / 波状流路流れ / 剥離・再付着流れ / 気液混相噴流
Research Abstract

To research this project, the next three groups were organized,i.e.
1.Coherent structure, 2.Secondary flows and 3.Longitudinal vortices in complicated channels under the umbrella of this project. Many co-operative researchers who were intersted in this project joined the three groups besides the investigators of this project. Forums were held three or four times every year to get mutual understanding of the results and to focus problems occurring in the research on the aim of this project through lively discussions by the participants of the forum. The following are the research results of this project:
1. Coherent structure: Coherent structure is affected by initial and boundary conditions and is related directly to the drag reduction and the delay of transition. The relation between streaky structure and longitudinal vortices was researched in various types of flow.
2. Secondary flows: Momentum transport to the spanwise direction plays an important role in the generation of steady secondary flow. It is caused by additional longitudinal vortices, uneven Reynolds stress, centrifugal instability and instability of separation shear layer in adverse pressure gradient.
3. Longitudinal vortices in complicated channels: Contribution and control of longitudinal vortices was researched on mass transport in a wavy channel, local erosion in a river, drag reduction caused by uneven injection of dense polymer solution in a turbulent pipe flow and generation of particle clusters in a fluidized bed. Structure of longitudinal vortices was also researched in the wake of a body and falling water.
The research results of this project were published in 25 papers in the report of this project and in 66 papers in various journals and were presented in 91 presentations at many meetings or conferences.

Report

(3 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • Research Products

    (43 results)

All Other

All Publications (43 results)

  • [Publications] 大坂,福島: "主流中の縦渦列と干渉した乱流境界層の乱流場のスパン方向変化" 機論(掲載予定). 59-559. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Yanase. S., Flores, C., Metais, O. & Riley. J.J.: "Rotating free shear flows:Partl. Linear stability analysis" (to be submitted). (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Nishimura. S.Murakami and Y.Kawamura: "Mass Transfer in a Symmetric Sinusoidal Wavy-Walled Channel for Oscillatory Flow" Chemical Engineering Science (to be published). 48. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 岡部 健士,湯城 豊勝,布川 政博: "屈曲流路水衝部の流況の改善に関する基礎的実験" 土木学会水工論文集. 37. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 赤司 信義,石川 誠,斉藤 隆: "二次元噴流の乱れの形成領域における縦渦構造の可視化" 水工学論文集. 37. 451-456 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 赤司 信義,石川 誠,斉藤 隆: "二次元噴流の組織的な渦構造の形成機構" 西日本工業大学紀要. 23. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Usui and T.Saekie: "Drag Reduction and Heat Transfer Reduction by Cationic Surfactants" J. Chem. Eng.25. 109 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 山博 英巳,山根 巧,大阪 英雄: "平面壁上に直立する正方形平板突起からの放出渦構造" 日本機械学会論文集B. 59-559. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 渡辺 勝利,大成 博文,佐賀 孝徳,前田 邦男: "壁乱流における流脈パターンと瞬時流跡の同時抽出" 水工学論文集. 37. 358-391 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 渡辺 勝利,佐賀 孝徳,大成 博文,斉藤 隆: "直線・蛇行水路乱流の組織構造の特徴" 水工学論文集. 37. 320-325 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 渡辺 勝利,大成 博文,斉藤 隆: "低レイノルズ数における蛇行水路乱流の組織構造" 土木学会論文集. 465. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kawahara, G.,K.Ayukawa, J.Ochi: "The Origin of Streasky Structures in Wall-Bounded Turbulent Flows" Proc. Int. Conference on Near-Wall turbulent Flows (to be published). (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 河原,鮎川,越智,渡部: "正方形断面管路内乱流におけるストリーク構造(流れの可視化および流速測定による同定)" 日本機械学会論文集B. 59-558. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Nakanishi,S., Sakurai,M. and Osaka,H.: "Numerical study on two-dimensional expansion channel flow -Asymmetric flow-" Proc. 2nd JSME-KSME Theraml Eng.Conference. 1. 59-62 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] KAWAMURA,T.,HAYASHI,T.: "Computation of Flow around a Yawed Circular Cylinder" International Journal. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 田辺 征一,柏田 幸男,林 農,岩田 博: "流れと直角な円柱のまわりの熱伝達に及ぼす円柱取付け壁面速度境界層の影響" 日本機械学会論文集B. 59-558. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 一宮 昌司,中瀬 敬之,福富 純一郎,山名 克巳,福永 雅昭: "平板上の突起より発達する乱流くさびの構造の研究" 日本機械学会論文集B. 59-557. 129-136 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 石川 誠,赤司 信義,斉藤 隆: "段落ち流れによる再付着点近傍の渦構造に関する実験的考察" 西日本工業大学紀要. 23. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Katoh.,M.Muyamoto.,M.Miike and K.Koga.: "Image Analysis with Spatial Filtering Method for Dropping Particle Velocity in Ari" Proc.of the Sixth International Symposium on Transport Phenomena. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 渡部 哲也: "正方形断面管路内流れの乱流構造(流れの可視化を併用した速度測定)" 日本機械学会流体工学部門講演会 講演論文集. 910ー50. 202-209 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 河原 源太: "正方形断面管路内流れの乱流構造(可視化によって抽出された乱れの確率密度分布)" 日本機械学会第69期全国大会講演会 講演論文集. 910ー62. 224-226 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 鮎川 恭三: "正方形管内流れ強さと乱れの確率密度分布" 日本機械学会論文集B. 57. 3616-3621 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 大坂 英雄: "スパン方向周期攪乱を受けた乱流境界層の構造に関する研究" 第23回乱流シンポジウム講演論文集. 23. 72-77 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 大坂 英雄: "主流中の縦渦列と干渉した乱流境界層の平均速度場の変化" 日本機械学会論文集 B. 58. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] Hideo OSAKA: "Effcct of contabled lengitudinal vortex arrays on the development of turbulent boundary layer" Exporimental Thermal and Fluid Scien. 5. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 渡辺 勝利: "蛇行水路乱流の水表面付近に形成された組織構造の時空間的特性" 第23回乱流シンポジウム講演論文集. Ho.23. 271-275 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Saga: "Coherent Structure in Turbulent Open Channel Flow in Corners" Fluid Contrl.Measurement and Visualization III. Ho.3. 725-731 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 佐賀 孝徳: "開水路流れにおける大規模乱流構造の可視化" 可視化情報福岡講演会講演論文集. 11. 209-212 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 西村 龍夫: "正弦波状流路内の脈動流" 日本機械学会論文集 B. 58. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 鈴木 豊彦: "平面剪断流のコヒ-レント構造に関する一研究" 日本航空宇宙学会誌.

    • Related Report
      1991 Annual Research Report
  • [Publications] H.USUI: "“Drag Reduction caused by cationic Surfactants",Proc.of Int." Regional Meeting on Rheology & Polymer Processing. Soaul. 76-79 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] 西 茂夫: "滑面相当網粗面平板乱流境界層の平均流特性" 日本機械学会 中国四国支部第30期総会講演会.

    • Related Report
      1991 Annual Research Report
  • [Publications] 桜井 元康: "非対称拡大流路流れの数値的研究" 機械学会 中国四国支部第30期総会講演会(講演論文集). (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 赤司 信義: "落下水脈の界面変動と空気混入" 西日本工業大学紀要、理工学編. 22. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 佐賀 孝徳: "開水路乱流側壁領域の組織構造に関する研究" 土木学会論文集. 443/IIー18. 56-64 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 渡辺 勝利: "低レイノルズ数における蛇行水路乱流の組織構造に関する研究" 土木学会論文集.

    • Related Report
      1991 Annual Research Report
  • [Publications] 大成 博文: "三角リブレットによる摩擦抵抗軽減について" 第23回乱流シンポジウム講演論文集. No.23. 94-95 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] H.USUI: "“Drag Reduction by the Polymer Injection into a Pipe Flow" Prac.Xlth Int." Cangiess on Rheology. Belgium. 11 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 薄井 洋基: "円管内乱流において高分子注入により引き起こされる乱流抗力減少" 化学工学会第24回秋季大会. 1.117. (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 薄井 洋基: "管内乱流への高分子注入による抗力減少の可視化実験" 日本レオロジ-学会第39回レオロジ-討論会. B20. (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 斎藤 隆: "開水路粘性底層内の流速変動" 乱流シンポジウム講演論文集. 23回. 114-119 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 河元 信幸: "開水路粘性底層内の流速変動とWavelts解析" 土木学会年次学術講演会概要集. 46回. 726-727 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 河元 信幸: "開水路粘性底層内の流速変動" 土木学会中国四国支部研究発表概要集. 43. 174-175 (1991)

    • Related Report
      1991 Annual Research Report

URL: 

Published: 1991-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi