油水两相分层流层流流速分布计算分析

利用剪切力比模型,进一步讨论了油水两相分层流层流流动的速度分布规律,将水相流速假设为抛物线形式分布与实验结果有较大偏差,将水相分为拖曳和返流两段更接近实际情况,模型所得水相计算结果更接近实验数据。指出剪切力比模型能否适合于油水两相分层流动计算理论需要更多实验结果验证。

Calculation Analysis of Velocity Distribution of Oil - water Stratified Laminar Flow

Velocity distribution of oil - water stratified laminar flow is discussed theoretically with the shear stress ratio model,the water phase velocity is treated with the parabolic profile and the shear-parabolic profile.The data calculated by the two different methods are compared with the experimental results,the results of the first model deviate from the experimental re- sults,the second model is near to the practical situation,and the velocity distribution of water phase calculated by the model presented in this article is better than results of Doc.1.To reveal mechanism better,more experiments are needed to verify the validity of the shear stress ratio model.