Evaluation of interchannel exchange models with a subchannel analysis code

被引：0
|
作者：
Yoo, YJ [1 ]
Hwang, DH [1 ]
Sohn, DS [1 ]
机构：
[1] Korea Atom Energy Res Inst, Taejon 305600, South Korea
来源：
HEAT TRANSFER 1998, VOL 6: GENERAL PAPERS | 1998年
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D O I：
暂无
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The effects of transverse mixing models between subchannels such as turbulent mixing and void drift have been investigated at single- and two-phase flow conditions. Three kinds of experimental data (PNL 2-channel, GE 9-rod, and ISPRA 16-rod experiments) have been evaluated by the subchannel analysis code COBRA-IV-I employing the simple void drift model of Lahey considering the tendency of void migration to wider channels. As the result of the analysis, a flow-pattern-dependent correction factor for the equilibrium void distribution term has been devised. It revealed that the proposed model successfully predicts the lower-than-average qualities of corner subchannels.
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页码：33 / 38
页数：6
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