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首页> 外文期刊>Numerical Heat Transfer, Part A. Application: An International Journal of Computation and Methodology >Analytical and level-set method-based numerical study for two-phase stratified flow in a plane channel and a square duct
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Analytical and level-set method-based numerical study for two-phase stratified flow in a plane channel and a square duct

机译：基于分析和水平集方法的平面通道和方管内两相分层流的数值研究

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摘要

The present work involves detailed nondimensional study of density-matched viscosity-stratified flow at various viscosity ratio (η) and Reynolds number. For fully-developed flow with increasing, it is found that the maximum U-velocity (U_(max)), and pressure gradient increases whereas interface height decreases monotonically. For developing flow, it is shown that the U_(max) increases whereas the interface height decreases asymptotically along the axial direction. However, the increase and decrease is more for square duct as compared to the plane channel. Furthermore, a set of development-length correlations are proposed for the plane channel. The present results can be used for the efficient transportation of a more viscous fluid.
机译：本工作涉及在各种粘度比（η）和雷诺数下，密度匹配的粘度分层流动的详细无量纲研究。对于随流量增加而完全展开的流动，发现最大U速度（U_（max））和压力梯度增加，而界面高度单调减小。对于显影液流，表明U_（max）增大，而界面高度沿轴向渐近减小。但是，与平面通道相比，方管的增加和减少更多。此外，针对平面通道提出了一组显影长度相关性。本发明的结果可用于更粘稠流体的有效输送。

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