Bubble sweeping and jet flows during nucleate boiling of subcooled liquids

被引：37
|
作者：
Wang, H
Peng, XF [1 ]
Wang, BX
Lee, DJ
机构：
[1] Tsinghua Univ, Dept Thermal Engn, Beijing 100084, Peoples R China
[2] Natl Taiwan Univ, Dept Chem Engn, Taipei 106, Taiwan
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2003年 / 46卷 / 05期
基金：
中国国家自然科学基金;
关键词：
nucleate boiling; bubble sweeping; jet flown; fine wire;
D O I：
10.1016/S0017-9310(02)00347-2
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
An experimental investigation was conducted to investigate nucleate boiling on a very fine heating wire. By using zoom routine and CCD camera system, the dynamical process of nucleate boiling was visually observed. Sweeping bubbles and several modes of jet flows were described and discussed. For some cases, big bubbles, small bubbles, sweeping bubbles and jet flows coexisted in boiling system, and greatly enhanced heat transfer. These phenomena are quite different from usual observation of nucleate boiling. In this paper, the process of bubble sweeping phenomenon is described in detail and the effect induced by sweeping bubbles is argued. And also, several jet flows are illustrated and discussed, as well as the interaction between bubble sweeping and jet flows. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：863 / 869
页数：7
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