Unsteady thermal convection of a non-Newtonian fluid

被引：11

作者：

Demir, H ^{[1
]}

Akyildiz, FT ^{[1
]}

机构：

[1] Ondokuz Mayis Univ, Arts & Sci Fac, Dept Math, TR-55139 Kurupelit, Turkey

来源：

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE | 2000年 / 38卷 / 17期

关键词：

Criminale-Erickson-Filbey (CEF) model; thermal convection; Waissenberg number;

D O I：

10.1016/S0020-7225(00)00011-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two-dimensional unsteady natural convection of a non-linear fluid represented by Criminale-Erickson-Filbey (CEF) fluid model in a square cavity is studied. The governing vorticity and energy transport equations are solved numerically. The contributions of the elastic and shear rate-dependent characteristics of the liquid to the non-Newtonian behaviour are investigated. The effect of the Weissenberg (which is a measure of the elasticity of the fluid) and Rayleigh numbers on the temperature and streamline profiles is delineated and this has been documented for the first time. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1923 / 1938

页数：16

共 12 条

[1]

AKYILDIZ FT, 2000, INT J APPL MATH, V2, P39

[2]

DAVIS GD, 1983, INT J NUMER METH FL, V3, P249

[3]

DEMIR H, 1996, THESIS U GLAMOGAN WA

[4]

DOUGLAS J, 1966, AICHE J, V12, P161

[5] FLUIDS OF DIFFERENTIAL TYPE - CRITICAL-REVIEW AND THERMODYNAMIC ANALYSIS [J].

DUNN, JE ;

RAJAGOPAL, KR .

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 1995, 33 (05) :689-729

[6]

GEBHARD B, 1988, BOUYANCY INDUCED FLO

[7]

IRD RB, 1960, TRANSPORT PHENOMENA

[8]

Keunings R, 1989, Fundamentals of Computer Modeling for Polymer Processing

[9] FINITE-ELEMENT METHODS FOR CALCULATION OF STEADY, VISCOELASTIC FLOW USING CONSTITUTIVE-EQUATIONS WITH A NEWTONIAN VISCOSITY [J].

RAJAGOPALAN, D ;

ARMSTRONG, RC ;

BROWN, RA .

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS, 1990, 36 :159-192

[10] NATURAL-CONVECTION OF A VISCOELASTIC FLUID [J].

ROPKE, KJ ;

SCHUMMER, P .

RHEOLOGICA ACTA, 1982, 21 (4-5) :540-542

← 1 2 →