B304 EFFECTS OF REDUCED SURFACE TENSION ON TWO-PHASE GAS-LIQUID FLOWS IN HORIZONTAL SMALL DIAMETER PIPES(Multiphase Flow-2)
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概要
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The purpose of the present study is to clarify both the reduced surface tension and the pipe diameter effects on two-phase flows in horizontal small diameter pipes. In the experiments, four-kinds of test liquids with different fluid properties were used together with 3, 5 and 9 mm i.d. test pipes. The parameters studied were flow pattern, bubble size, liquid film thickness, void fraction and pressure drop, etc. The flow patterns covered were bubbly, slug, churn, and annular flows. From the measured data, the data of interfacial friction force per unit volume, F_i, was also obtained. In the analysis, firstly the reduced surface tension and the pipe diameter effects on the flow parameters have been studied by comparing data obtained in different pipe and test liquid combinations. Secondly, mean liquid film thickness and interfacial friction factor in annular flow has been correlated with some dimensionless groups.
- 一般社団法人日本機械学会の論文
- 2009-11-16
著者
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SADATOMI Michio
Dept. of Advanced Mechanical Systems, Kumamoto University
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KAWAHARA Akimaro
Dept. of Advanced Mechanical Systems, Kumamoto University
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MATSUO Masatoshi
Pump Design Dept., Engine Components Design Div., Hitachi, Ltd.
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ISHIMURA Katsuhiro
Dept. of Advanced Mechanical Systems, Kumamoto University
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Sadatomi Michio
Department Of Mechanical System Engineering Graduate School Of Science And Technology Kumamoto Unive
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Sadatomi Michio
Dept. Of Advanced Mechanical Systems Kumamoto Univ.
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Kawahara Akimaro
Department Of Mechanical System Engineering Graduate School Of Science And Technology Kumamoto Unive
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Kawahara Akimaro
Dept. Of Advanced Mechanical Systems Kumamoto Univ.
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Matsuo Masatoshi
Pump Design Dept. Engine Components Design Div. Hitachi Ltd.
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Ishimura Katsuhiro
Dept. Of Advanced Mechanical Systems Kumamoto Univ.
関連論文
- Effects of Surface Tension on Two-Phase Gas-Liquid Flows in Horizontal Small Diameter Pipes
- H207 MODELING OF VOID DIFFUSION COEFFICIENT IN A TWO-PHASE SUBCHANNEL FLOW(BWR thermal hydraulics)
- B304 EFFECTS OF REDUCED SURFACE TENSION ON TWO-PHASE GAS-LIQUID FLOWS IN HORIZONTAL SMALL DIAMETER PIPES(Multiphase Flow-2)
- Single- and Two-Phase Turbulent Mixing Rate between Subchannels in Triangle Tight Lattice Rod Bundle(International Conferences on Power and Energy)
- Void Fraction and Pressure Drop in Two-Phase Equilibrium Flows in a Vertical 2×3 Rod Bundle Channel : Assessment of Correlations against the Present Subchannel Data(International Conferences on Power and Energy)
- Prediction of Gas-Liquid Two-Phase Slug Flow Characteristics in Vertical Small Diameter Pipes by a One-Dimensional Two-Fluids Model
- Effects of Surface Tension on Void Fraction in a Multiple-Channel Simplifying Triangle Tight Lattice Rod Bundle-Measurement and Analysis