Turbulent Slug and Velocity Field in the Inlet Region for Pulsatile Pipe Flow : Fluids Engineering
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概要
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This paper describes the characteristics of a turbulent slug and the velocity field in the inlet region for pulsatile pipe flow. Experimental conditions of the present study were arranged systematically by pulsation frequency and velocity amplitude ratio A_1. The experimental results regarding the onset of a turbulent slug, the propagation behavior of the slug, and the distributions of velocity and turbulence intensity inside the slug were compared with those for a turbulent patch in a pulsatile boundary layer on a flat plate. A close analogy was shown between them. When A_1 was smaller than 0.608, the velocity distribution for the laminar region outside a slug was approximated by an analytical solution previously presented for pulsatile laminar flow with a smaller A_1.
- 一般社団法人日本機械学会の論文
著者
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IGUCHI Manabu
Faculty of Engineering, Osaka University
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Iguchi M
Osaka Univ. Osaka Jpn
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OHMI Munekazu
Faculty of Engineering, Osaka University
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URAHATA Ikuo
Faculty Engineering. Oasaka University
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Urahata Ikuo
Faculty Of Engineering Osaka University
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Iguchi Manabu
Faculty Engineering Osaka University
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Ohmi M
Teikyo Univ. Utsunomiya Jpn
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Ohmi Munekazu
Faculty Of Engineering Osaka University
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Ohmi Munekazu
Faculty Engineering Osaka University
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