SPECTRAL VARIATIONAL APPROACH TO THE NON-NEWTONIAN STOKES PROBLEM IN A SPHERICAL-SHELL

被引:11
作者
CADEK, O [1 ]
MARTINEC, Z [1 ]
MATYSKA, C [1 ]
机构
[1] ECOLE NORM SUPER, GEOPHYS LAB, F-75231 PARIS 05, FRANCE
关键词
D O I
10.1016/0010-4655(92)90072-7
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
A hybrid-variational formulation of the Stokes equation for incompressible non-Newtonian flow is suggested. A spherical harmonic technique is adopted to discretize the problem. In the case of non-Newtonian rheology, the energy functional becomes non-quadratic. To minimize it on the set of admissible stress-functions, the gradient method is used and the convergence of the method is demonstrated.
引用
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页码:56 / 70
页数:15
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