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《Journal of Chemical Industry and Engineering(China)》 2004-11
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LIQUID REYNOLDS STRESS IN LINEAR SHEAR BUBBLY FLOW WITH INTERMEDIATE REYNOLDS NUMBERS

XU Zhaofeng, LUO Rui and YANG Xianyong(Department of Thermal Engineering, Tsinghua University, Beijing 100084, China)  
Analytical investigation of liquid Reynolds stress in shear bubbly flow with intermediate Reynolds numbers is absent.In this paper, the velocity field around a sphere bubble in linear shear liquid is assumed to be the linear superposition of the velocity field of uniform liquid passing a sphere bubble and the linear shear velocity field.The formula of shear liquid Reynolds stress was derived by averaging the velocity field in the cell-ensemble averaging method, and the formula was corrected under conditions of intermediate Reynolds number.The formula was compared with that of Sato, and the predicted results of local liquid velocity of the fully developed upward bubbly flow in pipes were compared with the experimental data.The results show that the formula is valid and accurate in prediction.
【Fund】: 国家自然科学基金资助项目 (No 195 72 0 42 )~~
【CateGory Index】: TB126
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