Scaling of singular structures in extensional flow of dilute polymer solutions

被引：19
|
作者：
Becherer, Paul [1 ]
Morozov, Alexander N. [1 ,2 ]
van Saarloos, Wim [1 ]
机构：
[1] Leiden Univ, Inst Lorentz Theoret Phys, NL-2300 RA Leiden, Netherlands
[2] Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland
来源：
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 2008年 / 153卷 / 2-3期
关键词：
birefringent strands; extensional flow; stagnation point; FENE model;
D O I：
10.1016/j.jnnfm.2007.12.009
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Recently singular solutions have been discovered in purely elongational flows of visco-elastic fluids. We surmise that these solutions; are the mathematical structures underlying the so-called birefringent strands seen experimentally. In order to facilitate future experimental studies of these we derive a number of asymptotic results for the scaling of the width and extension of the near-singular structures in the FENE-P model for polymers of finite extensibility. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：183 / 190
页数：8
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