Scaled entrainment measurements in ripple-annular flow in a small tube

被引:37
作者
Assad, A
Jan, C
de Bertodano, ML [1 ]
Beus, S
机构
[1] Purdue Univ, Sch Nucl Engn, W Lafayette, IN 47907 USA
[2] Westinghouse Elect Corp, Bettis Atom Power Lab, W Mifflin, PA 15122 USA
关键词
D O I
10.1016/S0029-5493(98)00214-3
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
High pressure steam-water annular flow was simulated with scaled air-water and Freon-113 experiments. A unique Freon-113 loop was built to obtain low surface tension and high vapor density data on entrainment fraction. The results were compared with two correlations available in the open literature. The Ishii and Mishima correlation was capable to collapse the data for air-water, Freon-113 and steam-water experiments satisfactorily. However the correlation needs to be adjusted for high Weber numbers of the gas phase. The data was limited to the ripple-annular regime because the film extraction technique is not reliable when the him becomes frothy. (C) 1998 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:437 / 447
页数:11
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