EXPERIMENTAL-STUDY OF HEAT AND MASS-TRANSFER FROM A HORIZONTAL CYLINDER IN DOWNWARD AIR-WATER MIST FLOW WITH BLOCKAGE EFFECT

被引：9
作者：
AIHARA, T
FU, WS
HONGOH, M
SHIMOYAMA, T
机构：
[1] Institute of Fluid Science, Tohoku University, Sendai
[2] Institute of Mechanical Engineering, National Chiao Tung University, Hsinchu
[3] Institute of Fluid Science, Tohoku University, Sendai
来源：
EXPERIMENTAL THERMAL AND FLUID SCIENCE | 1990年 / 3卷 / 06期
关键词：
forced convection; heat and mass transfer; heat transfer augmentation; mist flow; two-phase flow;
D O I：
10.1016/0894-1777(90)90079-M
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
An experimental study was made on convective heat and mass transfer from a horizontal heated cylinder in a downward flow of air-water mist at a blockage ratio of 0.4. The measured local heat transfer coefficients agree fairly well with the authors' numerical solutions obtained previously for the front surface of a cylinder over the ranges mass flow ratio 0-4.5×10-2, a temperature difference between the cylinder and air 10-43 K, gas Reynolds number (7.9-23)×103, Rosin-Rammler size parameter 105-168 μm, and dispersion parameter 3.4-3.7. Heat transfer augmentation, two-pahse to single-phase of greater than 19 was attained at the forward stagnation point. For heat transfer in the rear part of the cylinder, an empirical formula is derived by taking into account the dimensionless governing variables, that is, coolant-feed and evaporation parameters. © 1990.
引用
收藏
页码：623 / 631
页数：9
相关论文
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