On the numerical implementation of nonlinear viscoelastic models in a finite-volume method

被引：20
|
作者：
Oliveira, PJ [1 ]
机构：
[1] Univ Beira Interior, Dept Engn Electromecan, P-6200 Covilha, Portugal
来源：
NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS | 2001年 / 40卷 / 04期
关键词：
D O I：
10.1080/104077901317091695
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Numerical aspects of the implementation of nonlinear viscoelastic fluid models in a finite volume method are investigated: (1) decomposition of the discretized stress equations in such a way that diagonal dominance is maximized, in order to promote numerical stability with iterative solvers; (2) imposition of boundary conditions for the stress components normal to a wall plane, and for pressure. These issues are investigated in relation: to the Giesekus constitutive equation and illustrative flow examples showing the benefits of the proposed methodology are given.
引用
收藏
页码：283 / 301
页数：19
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