STRETCHING IN DUCT FLOWS

被引：16

作者：

FRANJIONE, JG

OTTINO, JM

机构：

[1] UNIV MASSACHUSETTS,DEPT CHEM ENGN,AMHERST,MA 01003

[2] NORTHWESTERN UNIV,DEPT CHEM ENGN,EVANSTON,IL 60208

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1991年 / 3卷 / 11期

关键词：

D O I：

10.1063/1.858171

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Duct flows are steady three-dimensional isochoric velocity fields composed of a recirculating two-dimensional cross-sectional flow and a unidirectional axial flow, both flows being independent of the axial distance. It is shown that lineal stretch in such flows increases linearly in time. In particular, length stretch in bounded steady two-dimensional flows is linear as well.

引用

页码：2819 / 2821

页数：3

共 12 条

[1]

Bird RB, 1987, DYNAMICS POLYM LIQUI, V91, P1397, DOI DOI 10.1016/0377-0257(78)80009-3

[2]

CHADWICK P, 1976, CONTINUUM MECHANICS

[3] STRETCHING IN SOME CLASSES OF FLUID MOTIONS AND ASYMPTOTIC MIXING EFFICIENCIES AS A MEASURE OF FLOW CLASSIFICATION [J].