Study of ComPressible High Speed Gas Flow in Piping System : 1st Report, Piping Systems with Bends or Elbows
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概要
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The effect of compressibility at subsonic speed in piping systems with bends or elbows is studied in this report. Experiments are carried out with varying deflection angle, relative radius of curvature, inner surface roughness as well as the flow Mach number. The effect of compressibility on Kt, the loss coefficient of bends or elbows, is expressed by the following empirical formulas, Kt/Kti=1.0+αM^3, where the subscript i refers to an incompressible flow, and α,β are constants dependent of configurations of bends or elbows. Furthermore, flow patterns around curved parts are visualized by Finally, a practical computing method of flow losses of high speed piping system is summarized.
- 一般社団法人日本機械学会の論文
著者
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MAEDA Toshiyuki
Faculty of Technology, Tokyo Metropolitan University
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Maeda Toshiyuki
Faculty Of Technology Tokyo Metropolitan University
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Maeda Toshiyuki
Department Of Mechanical Engineering Tokyo Metropolitan University
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MORIMUNE Takaaki
Department of Mechanical Engineering, Tokyo Metropolitan University
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HIRAYAMA Naomichi
Department of Mechanical Engineering, Tokyo Metropolitan University
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Morimune Takaaki
Department Of Mechanical Engineering Faculty Of Technology Tokyo Metropolitan University
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Hirayama Naomichi
Department Of Mechanical Engineering Faculty Of Technology Tokyo Metropolitan University
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Maeda Toshiyuki
Department Of Cardiovascular Surgery Sapporo City General Hospital
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