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

页码：183 / 190

页数：8

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