Rheological and flow modelling of viscoelastic fluids between eccentric cylinders

被引：12
|
作者：
Liu, Kai [1 ]
Grecov, Dana [1 ]
机构：
[1] Univ British Columbia, Dept Mech Engn, Vancouver, BC V6T 1Z4, Canada
来源：
APPLIED MATHEMATICAL MODELLING | 2011年 / 35卷 / 04期
基金：
加拿大自然科学与工程研究理事会; 加拿大创新基金会;
关键词：
Non-Newtonian fluids; Journal bearings; Lubrication; Maxwell fluid; Numerical simulations;
D O I：
10.1016/j.apm.2010.09.036
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Viscoelastic fluid flows within eccentric rotating cylinders are simulated using a finite element based commercial software POLYFLOW, and an approach based on the stream-tube method (STM) and domain decomposition. The fluids considered are non-Newtonian, viscoelastic and modelled by an Upper Convective Maxwell (UCM) constitutive equation. The results point out the influence of non-Newtonian fluid properties on flows between eccentric cylinders with moderate and narrow gaps. Significant viscoelastic effects, notably the role of elasticity, are found for all eccentric cylinders configurations. (C) 2010 Elsevier Inc. All rights reserved.
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页码：1603 / 1615
页数：13
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