Constitutive equations for fiber suspensions in viscoelastic media

被引：27
|
作者：
Azaiez, J
机构：
[1] Chemical Engineering Department, Laval University, Ste-Foy
来源：
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 1996年 / 66卷 / 01期
关键词：
constitutive equations; fiber suspensions; viscoelastic media;
D O I：
10.1016/0377-0257(96)01461-9
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The kinetic theory of elastic dumbells with a friction factor that depends on the fiber orientation is used to obtain constitutive equations for fiber suspensions in a polymer matrix. We followed the approach of Fan (X.J. Fan, in P. Moldenaers and R. Keunings (Eds.), Theoretical and Applied Rheology, Proceedings XIth International Congress on Rheology, Brussels, Elsevier, Amsterdam, 1992, pp. 850-852), and derived equations for polymer solutions based on the FENE-P, FENE-CR, and Giesekus models. Start-up and steady-state free shear flows are studied to explore the effects of the fiber-polymer coupling as well as the fiber volume fraction. Predictions based on different types of closure approximations for the fourth-order fiber orientation tensor are also discussed.
引用
收藏
页码：35 / 54
页数：20
相关论文
共 50 条
12345