Shear banding flow in the Johnson-Segalman fluid

被引：49
作者：
Espanol, P
Yuan, XF
Ball, RC
机构：
[1] Univ Nacl Educ Distancia, DEPT FIS FUNDAMENTAL, MADRID 28080, SPAIN
[2] UNIV BRISTOL, HH WILLS PHYS LAB, BRISTOL BS8 1TL, AVON, ENGLAND
来源：
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 1996年 / 65卷 / 01期
关键词：
Johnson-Segalman fluid; shear banding flow;
D O I：
10.1016/0377-0257(96)01451-6
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The behaviour of the Johnson-Segalman fluid in a Couette geometry is investigated with a combination of numerical, analytical and simulation techniques. The results strongly suggest that there exists a selection mechanism for the position of the interface of discontinuity due to the constitutive instability typical of models with non-monotonic constitutive equations. This implies that the spurt phenomenon exhibits a jump discontinuity instead of a change of slope in the flow curve.
引用
收藏
页码：93 / 109
页数：17
相关论文
共 21 条
[1]   ISSUES IN VISCOELASTIC FLUID-MECHANICS [J].
DENN, MM .
ANNUAL REVIEW OF FLUID MECHANICS, 1990, 22 :13-34
[2]   STICK-SLIP TRANSITION AT POLYMER MELT/SOLID INTERFACES [J].
DRDA, PP ;
WANG, SQ .
PHYSICAL REVIEW LETTERS, 1995, 75 (14) :2698-2701
[3]  
HOWELLS ER, 1962, T PLAST I, V30, P240
[4]   MODEL FOR VISCOELASTIC FLUID BEHAVIOR WHICH ALLOWS NON-AFFINE DEFORMATION [J].
JOHNSON, MW ;
SEGALMAN, D .
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 1977, 2 (03) :255-270
[5]   WALL SLIP AND EXTRUDATE DISTORTION IN LINEAR LOW-DENSITY POLYETHYLENE [J].
KALIKA, DS ;
DENN, MM .
JOURNAL OF RHEOLOGY, 1987, 31 (08) :815-834
[6]   SPURT PHENOMENA OF THE JOHNSON SEGALMAN FLUID AND RELATED MODELS [J].
KOLKKA, RW ;
MALKUS, DS ;
HANSEN, MG ;
IERLEY, GR ;
WORTHING, RA .
JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 1988, 29 (1-3) :303-335
[7]  
KURTZ SJ, 1984, ADV RHEOLOGY, V3, P399
[8]   INSTABILITIES IN VISCOELASTIC FLOWS [J].
LARSON, RG .
RHEOLOGICA ACTA, 1992, 31 (03) :213-263
[9]  
MALKUS D, 1993, OSCILLATIONS PISTON
[10]   DYNAMICS OF SHEAR-FLOW OF A NON-NEWTONIAN FLUID [J].
MALKUS, DS ;
NOHEL, JA ;
PLOHR, BJ .
JOURNAL OF COMPUTATIONAL PHYSICS, 1990, 87 (02) :464-487
123