气液两相水平管流分层--段塞流型转换机制研究

本文根据Stokes溃坝理论 ,提出了一个新的物理模型。通过对段塞单元的稳定性进行分析得出段塞保持稳定的临界液面高度值 ,从而得出分层流向段塞流转换的条件 ,并分析了液体粘度、管径大小对流型转换条件的影响。计算结果与实验值较为吻合

Initiation of slugs in horizontal gas-liquid pipe flow

A unique mathematical model was established on the transition line from stratified flow to slug flow according to the Stokes breaking dam theory. The critical liquid height below which slugs will decay was calculated through the stability analysis for one slug unit. The condition for the initiation of the slug flow regime was thus obtained. The effects of liquid viscosity and pipe diameter on the transition line were also investigated. The computational results agree well with the experimental data.