EXTENSIONAL FLOW OF A SUSPENSION OF FIBERS IN A DILUTE POLYMER-SOLUTION

被引：7
|
作者：
HARLEN, OG
KOCH, DL
机构：
[1] School of Chemical Engineering, Olin Hall, Cornell University, Ithaca
[2] D.A.M.T.P, University of Cambridge, Cambridge, CB3 9EW, Silver Street
来源：
PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1992年 / 4卷 / 05期
关键词：
D O I：
10.1063/1.858258
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The extensional properties of a suspension of slender fibers in a dilute polymer solution at high Deborah numbers are derived by modeling the polymer solution as an anisotropic viscous fluid. The fiber stress is found to exceed its value in a Newtonian fluid with the same shear viscosity by at most a factor of log r (where r is the aspect ratio of the fiber). There is, however, a change to the form of the velocity disturbance caused by a fiber resulting in a decrease in the orientational dispersion due to fiber-fiber interactions.
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页码：1070 / 1073
页数：4
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