Numerical simulation of steady flow past a liquid sphere immersed in simple shear flow at low and moderate Re  

数值模拟中低Reynolds数下简单剪切流流过单液滴的稳态流场(英文)

作　　者：李润 张敬升 雍玉梅 汪洋 杨超 

机构地区：[1]Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences [2]Beijing Research Institute of Chemical Industry,SINOPEC

出　　处：《Chinese Journal of Chemical Engineering》2015年第1期15-21,共7页中国化学工程学报（英文版）

基　　金：Supported by the National Basic Research Program of China(2013CB632601);the National Science Fund for Distinguished Young Scholars(21025627);the National Natural Science Foundation of China(21276256,21106150);the National High Technology Research and Development Program of China(2012AA03A606)

摘　　要：This work presents a numerical investigation on steady internal, external and surface flows of a liquid sphere immersed in a simple shear flow at low and intermediate Reynolds numbers. The control volume formulation is adopted to solve the governing equations of two-phase flow in a 3-D spherical coordinate system. Numerical results show that the streamlines for Re = 0 are closed Jeffery orbits on the surface of the liquid sphere, and also closed curves outside and inside the liquid sphere. However, the streamlines have intricate and non-closed structures for Re ≠ 0. The flow structure is dependent on the values of Reynolds number and interior-to-exterior viscosity ratio.This work presents a numerical investigation on steady internal, external and surface flows of a liquid sphere immersed in a simple shear flow at low and intermediate Reynolds numbers. The control volume formulation is adopted to solve the governing equations of two-phase flow in a 3-D spherical coordinate system. Numerical results show that the streamlines for Re = 0 are closed Jeffery orbits on the surface of the liquid sphere, and also closed curves outside and inside the liquid sphere. However, the streamlines have intricate and non-closed structures for Re ≠ 0. The flow structure is dependent on the values of Reynolds number and interior-to-exterior viscosity ratio.

关 键 词：Shear flow Liquid sphere Numerical simulation STREAMLINE Jeffery orbit 

分 类 号：TQ021.1[化学工程]