FLOW FIELD AND PRESSURE-DROP OF FILTERS WITH RECTANGULAR FIBERS

被引:44
作者
FARDI, B [1 ]
LIU, BYH [1 ]
机构
[1] UNIV MINNESOTA,DEPT MECH ENGN,PARTICLE TECHNOL LAB,MINNEAPOLIS,MN 55455
关键词
8;
D O I
10.1080/02786829208959558
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A numerical study of viscous flow in a fibrous filter modeled as a staggered array of rectangular or cylindrical fibers arranged perpendicular to the flow direction was conducted to determine the fiber drag. The calculated dimensionless drag values for the case of the cylindrical fibers were found to be in excellent agreement with the analytical results of Kuwabara (1959). The effect of the fluid inertia on the flow around a cylindrical or rectangular fiber was found to be negligible for Reynolds number values < 0.2. Further, the dimensionless drag on rectangular fibers with aspect ratios > 1 was found to be a strong function of the filler solid-volume fraction, which correlated well with (he Kuwabara results for the case of cylindrical fibers.
引用
收藏
页码:36 / 44
页数:9
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