Hydraulic performance of an S-draft tube for a low head axial flow turbine : How to the performance and unsteady secondary flow in a S-draft tube
スポンサーリンク
概要
- 論文の詳細を見る
This study investigates the possibility of significantly improving the performance or sharply bent S-draft tubes by a conventional, but comparatively simple method ; by adjusting the divergent angle of the conical straight portion at the upstream part of the draft tube. This paper describes this method, as well as a phenomenon associated with secondary flow in sharply bent S-draft tube in which the flow changes its direction intermittently. This phenomenon is important because the use of sharply bent S-draft tubes is preferred in some cases due to civil engineering requirements for turbine installation. Therefore, this report attempts to clarify the phenomenon in detail.
- 一般社団法人日本機械学会の論文
- 1988-11-15
著者
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Kubota Takashi
Institute Of Space And Astronautical Science Jaxa
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SHIMIZU Yukimaru
Department of Mechanical Engineering, Mie University
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KUBOTA Takashi
Hydro-Turbine Division, Fuji Electric Co., Ltd.
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WAKASHIMA Yoshisato
Department of Mechanical Engineering, Mie University
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NAKAMURA Shogo
Hydro-Turbine Division, Fuji Electric Co., Ltd.
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Kubota T
Institute Of Space And Astronautical Science Jaxa
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Shimizu Yukimaru
Department Of Mechanical Engineering Mie University
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Wakashima Yoshisato
Department Of Mechanical Engineering Mie University
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Nakamura Shogo
Hydro-turbine Division Fuji Electric Co. Ltd.
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