一维双流体分层/段塞流模型的特征根分析

工程热物理学报 , 2006, 27(z1): 217-220.

1.西安交通大学动力工程多相流国家重点实验室,陕西,西安,710049

2.西安交通大学动力工程多相流国家重点实验室,陕西,西安,710049

基金项目: 国家自然科学基金(10172069) 国家重点实验室基金(50323001)

CHARACTERISTICS ANALYSIS OF TRANSIENT ONE-DIMENSIONAL TWO-FLUID MODEL FOR STRATIFIED AND SLUG FLOWS

采用特征根方法对描述水平和倾斜管内气液分层流/段塞流的一维双流体模型进行适定性分析.系统分析了气液两相密度、粘性和管道倾角对一维双流体模型适定性的影响.计算结果表明:液相密度、气相粘性和管道下倾角的增大能拓宽方程组求解的适定区域;适定界线与气液两相流流型转变界线之间存在内在联系.

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