On the Peterlin approximation for finitely extensible dumbbells

被引：121

作者：

Keunings, R

机构：

[1] Division of Applied Mechanics, Univ. Catholique de Louvain, Bâtiment Euler

来源：

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 1997年 / 68卷 / 01期

关键词：

constitutive equation; FENE dumbbells; kinetic theory; stochastic simulation;

D O I：

10.1016/S0377-0257(96)01497-8

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

For the simplest non-linear kinetic theory of dilute polymeric solutions (FENE dumbbells), the pre-averaging Peterlin approximation used to derive a macroscopic constitutive equation (FENE-P) is shown to have a significant impact on the statistical and rheological properties of the model. This is illustrated in simulations of transient elongational flows by means of standard and stochastic numerical techniques. (C) 1997 Elsevier Science B.V.

引用

页码：85 / 100

页数：16

共 22 条

[1]

Bird R.B., 1987, DYNAMICS POLYM LIQUI, V2

[2]

BIRD RB, 1980, J NON-NEWTON FLUID, V7, P213, DOI 10.1016/0377-0257(80)85007-5

[3] CONSTITUTIVE-EQUATIONS FOR POLYMERIC LIQUIDS [J].