Fully Developed Turbulent Flow in a Curved Rectangular Duct

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概要

• 論文の詳細を見る

• Fully developed flows in a curved rectangular duct having a breadth/curvature-radius ratio of 0.25 are studied experimentally. A flow-turning angle of more than 150° is required for the flow to reach a fully developed state in any duct which has an aspect ratio (height/breadth) of the cross section ranging from 0.4 to 16. In the case of low aspect ratios, the main flow has a forced vortex-type velocity distribution, and has a free vortex-type distribution at high aspect ratios. Concerning the skewed boundary layer on the end plate, similarity exists in the secondary flow velocity distributions. It was found that the profile of the distribution is the same as one of two-dimentional wall jets, and that the thickness of the secondary flow boundary layer should be considered separately from that of the main flow.

• 一般社団法人日本機械学会の論文

著者

• Hirose K

  Okayama Univ. Okayama Jpn

• Tanaka S

  International Superconductivity Technology Center

• TANAKA Satoshi

  Kawasaki Heavy Industries, Ltd.

• KITA Yoshinori

  Department of Mechanical Engineering, Okayama University

• OKAZAKI Makoto

  Mitsubishi Electric Corporation

• HIROSE Koji

  Department of Mechanical Engineering, Okayama University

• Hirose Koji

  Department Of Mechanical Engineering Okayama University Of Science

• Kita Y

  Okayama Univ. Okayama Jpn

• Kita Yoshinori

  Department Of Civil Engineering Kyushu Institute Of Technology

• Okazaki M

  Mitsubishi Electric Corporation

• Tanaka Satoshi

  College of Engineering,Osaka Prefecture University

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