Flow around a Finite Circular Cylinder on a Flat Plate : Cylinder height greater than turbulent boundary layer thickness

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概要

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• Some flow visualization experiments and measurements of surface pressure, Strouhal number, etc. around a finite circular cylinder on a flat plate have been performed in order to study the effect of a three-dimensional flow. The slenderness parameter of the cylinder is in a range of l/d=1〜8, where the slenderness parameter influences remarkably the flow behavior. From an analysis of mean and periodical motion in the near-wake flow, the following results are obtained. (1) The separation velocity at the side wall is lower than that of a two-dimensional cylinder, and this decreases the drag coefficients. (2) A pair of trailing vortices exist right below the free-end. (3) Down-wash flow and the trailing vortex near the free-end dominate the behavior of Karman vortex shedding. Finally, based on these results, the flow models around the finite height cylinder are presented.

• 一般社団法人日本機械学会の論文

著者

• MABUCHI Ikuo

  Faculty of Engineering, Gifu University

• KUMADA Masaya

  Faculty of Engineering, Gifu University

• Mabuchi Ikuo

  Gifu University Faculty Of Engineering

• Mabuchi Ikuo

  Faculty Engineering Gifu University

• Kumada Masaya

  Gifu University Faculty Of Engineering

• Kumada Masaya

  Faculty Of Engineering Gifu University

• Kawamura Takao

  Gifu National College Of Technology

• HIWADA Munehiko

  Faculty of Engineering,Gifu University

• HIWADA Munihiko

  Gifu University

• HIBINO Toshiharu

  Teijin Seiki Ltd

• Kumada Masaya

  Gifu University

• Hibino Toshiharu

  Teijin Seiki Co Ltd.

• Hiwada Munehiko

  Gifu University Faculty Of Engineering

• Hiwada Munehiko

  Faculty Of Engineering Gifu University

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