Research on mechanism of flow excursion in narrow rectangle channel under natural circulation

被引：7
|
作者：
Zhou Tao [1 ]
Hong Dexun [1 ]
Ran Ke [1 ]
Su Ziwei [1 ]
机构：
[1] N China Elect Power Univ, Inst Nucl Thermal Hydraul Safety & Standardizat, Beijing 102206, Peoples R China
来源：
NUCLEAR ENGINEERING AND DESIGN | 2013年 / 254卷
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1016/j.nucengdes.2012.08.016
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：
By changing the heating power, flow excursion happens in the laboratory equipment of natural circulation. Meanwhile, there is a certain degree of local flow oscillations before the happening of flow excursion. Based on analyzing the mechanism of flow excursion, it comes to that the change of bubble and flow pattern has effect on flow excursion. At early stage, the impact of resistance on bubble is significantly greater than that of buoyancy; at later stage, the resistance equals to the buoyancy, flow excursion stops. Channel effect has important promotion to flow excursion. (C) 2012 Elsevier B.V. All rights reserved.
引用
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页码：1 / 4
页数：4
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