Characteristics of the Flow around a Bluff Body near a Plane Surface

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概要

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• The characteristics of the flow around a normal flat plate and a triangular cylinder near a plane surface has been investigated experimentally in the Reynolds number range of 10^2to 3×10^4. Frequency analysis of hot wire signal of the wake flow in a wind tunnel revealed that regular vortex shedding from the normal flat plate and the triangular cylinder was suppressed for spaces less than about 0.6 and 0.37 times the body width respectively. Investigation of the time-mean distance between two shear layers in the vortex formation region demonstrated that the suppression of vortex shedding for both configurations occurred for any space between the inner shear layer and the plane surface less than about 0.3 times the shear Iayer distance. Flow visualization experiments in a water tank revealed the structural differences of the wakes with and without vortex shedding.

• 一般社団法人日本機械学会の論文

著者

• Kamemoto Kyoji

  Faculty Of Engineering Yokohama National University

• Aizawa Masahiro

  Faculty Of Engineering Yokohama National University

• Oda Yosaku

  Faculty of Engineering, Yokohama National University

• Oda Yosaku

  Faculty Of Engineering Yokohama National University

関連論文

• Investigation of Turbulent Wall Jets over Logarithmic Spiral Surfaces : 1st Report, Development of Jets and Similarity of Velocity Profile
• Characteristics of the Flow around a Bluff Body near a Plane Surface
• Formation and Interaction of Two Parallel Vortex Streets
• Investigation of Turbulent Wall Jets over Logarithmic Spiral Surfaces : 2nd Report, Properties of Flow near Wall

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