ON THE CORNER VORTEX IN ABRUPT CONTRACTIONS

被引：7

作者：

DEBBAUT, B

机构：

[1] Unité de Mécanique Appliquée, Université Catholique de Louvain, B-1348 Louvain-la-Neuve

来源：

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 1990年 / 36卷

关键词：

contraction flow; extensional viscosity; numerical simulation; stress overshoot; viscoelastic constitutive equation;

D O I：

10.1016/0377-0257(90)85013-O

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

We examine the consequences of modifying the Oldroyd-B fluid for calculating vortex growth in flow through an abrupt contraction. First, we examine the effect of a second relaxation time which enhances the elongational properties of the fluid at low rates of extension. Next, we investigate the effect of stress overshoot by means of a modified Phan-Thien-Tanner fluid. © 1990.

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收藏

页码：265 / 275

页数：11

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