Stress Calculation on a Swirling Flow in Suction Pipe of Centrifugal Pumps
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概要
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This paper presents a theory on the decay of a turbulent swirl in flow through the suction pipe of centrifugal pumps. When a pump of high specific-speed is operated at extremely low discharges, velocity profile of the swirling flow exhibits itself nearly in a typical forced vortex type. Maintaining the same profile, the swirl decays toward upstream of the pipe. On this flow, the theoretical analysis was found to be in good agreement with experimental data. The viscous stress between fluid particles of the flow and the wall friction together with the eddy kinetic viscosity were calculated theoretically. The friction characteristics is quite different from that in the parallel flow of a flat plate.
- 一般社団法人日本機械学会の論文
著者
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Murakami Mitsukiyo
Faculty Of Engineering Nagoya University
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HEYA Naomichi
Faculty of Engineering, Osaka City University
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Heya Naomichi
Faculty Of Engineering Osaka City University
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