An experimental study on the mass transfer rate of droplets in annular two-phase flow

被引：3

作者：

Okawa, T ^{[1
]}

Shimada, N ^{[1
]}

Kotani, A ^{[1
]}

Kataoka, I ^{[1
]}

机构：

[1] Osaka Univ, Dept Mech Engn, Suita, Osaka 5650871, Japan

来源：

JSME INTERNATIONAL JOURNAL SERIES B-FLUIDS AND THERMAL ENGINEERING | 2006年 / 49卷 / 02期

关键词：

multi-phase flow; pipe flow; annular flow; droplet; deposition; experiment; flow obstacle; obstacle shape;

D O I：

10.1299/jsmeb.49.271

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Deposition rate of droplets in annular flow was measured to elucidate the effect of the shape of flow obstacles that were placed in a flow channel. In the present experiments. the test section was a vertical round tube of 5 mm in inside diameter, air and water were used as test fluids, and double film extraction technique was adopted for the measurement. Seven flow obstacles were tested; three obstacles were tubular in shape while other four obstacles were also cylindrical but the cross-sectional areas were varied smoothly in the axial direction. It was revealed that the deposition rate of droplets markedly increased if the present small flow obstacle was placed in the test section tube. The increasing rate was dependent primarily upon the cross-sectional shape of flow obstacle at the maximum cross-sectional area.

引用

页码：271 / 278

页数：8

共 28 条

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AKIBA M, 1998, JAPANESE J MULITPHAS, V12, P144

[2]

Effects of the spacer and mixing vanes on critical heat flux for low-pressure water at low-velocities [J].