底部封闭矩形通道临界热流密度的理论研究Analytical study on critical heat flux in a vertical rectangular channel with a closed bottom
王迅,渠颖
摘要(Abstract):
分析研究了在底部封闭矩形通道内逆流汽液两相流条件下的临界热流密度的发生机理。研究表明,临界热流密度与流入矩形通道内的最大下降液体流量相对应,并且临界热流密度可通过求解动量方程、包络线和能量方程得到。通过与日本数土幸夫建立的模型、经验关联式和实验数据比较,该模型可在精度±30 %范围内预测底部封闭矩形通道条件下的临界热流密度。
关键词(KeyWords): 临界热流密度;最大下降液体流量法;矩形通道
基金项目(Foundation):
作者(Author): 王迅,渠颖
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