低干度自然循环两相流动系统流动特性分析
首发时间:2007-01-04
摘要:基于一维两相四方程漂移流模型,采用数值模拟的方法对5MW低温核供热堆热工模拟回路(HTRL-5)的自然循环进行模拟,分析在自然循环系统中存在的分岔特性及其参数效应。结果表明:1)在一定条件下低干度自然循环两相流动系统存在静态分岔现象;2)当压力高到一定程度或热流密度小到一定程度时系统的分岔点消失。
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Analysis on Two-Phase Flow Characteristics of Natural Circulation System with Low Steam Quality
Abstract:Based on the one-dimension two-phase drift flow model, the simulation of system characteristic under HTRL-5 condition was performed. The bifurcation characteristic of two-phase flow system under natural circulation condition was analyzed. The parameter effect on the bifurcation characteristic was also analyzed. The results show: 1) the bifurcation phenomenon will occur under certain conditions. 2) the bifurcation phenomenon will disappear while the system pressure increases or the heat flux decreases to some extent.
Keywords: bifurcation natural circulation two-phase flow HTRL-5
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No.1058795245116790****
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