Dynamic simulations of pressure-drop type instabilities in a two-phase upflow boiling system including the modeling of the exit restriction

被引：0
|
作者：
Cao, LP [1 ]
Kakac, S [1 ]
Liu, HT [1 ]
机构：
[1] Univ Miami, Dept Mech Engn, Coral Gables, FL 33124 USA
来源：
MULTIPHASE FLOW AND HEAT TRANSFER | 1999年
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D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The two-phase flow pressure-drop type instabilities in a two-phase upflow boiling system has been studied theoretically. A mathematical model of the exit restriction is presented, which is based on the modified separated flow model in conjunction with the homogeneous flow model of the two-phase fluid flowing through a sharp-edged orifice. The drift-flux model is adopted for prediction. The dynamic oscillations of the quasi-static pressure-drop type instabilities in the boiling system are simulated, and good predictions of the system stability boundary and oscillations characteristics are obtained.
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页码：1 / 13
页数：13
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