Nonlinear dynamical analysis for globally modified incompressible non-Newtonian fluids

被引:0
|
作者
Caraballo, Tomas [1 ,2 ]
Carvalho, Alexandre N. [3 ]
Lopez-Lazaro, Heraclio [3 ]
机构
[1] Univ Sevilla US, Fac Matemat, Dept Ecuac Diferenciales & Anal Numer, C-Tarfia S-N, Seville 41012, Spain
[2] Shanxi Univ, Dept Math, Taiyuan 030006, Peoples R China
[3] Univ Sao Paulo, Inst Ciencias Matemat & Comp ICMC, BR-13566590 Sao Carlos, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
ATTRACTOR; DIMENSION; UNIQUENESS; FLOW;
D O I
10.1063/5.0150897
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present the global modification of the Ladyzhenskaya equations, for incompressible non-Newtonian fluids. This modification is through a cut-off function that multiplies the convective term of the equation and an additional artificial smoothing dissipation term as part of the viscous term of the equation. The goal of this work is the comparative analysis between the modified system and the non-modified system. Therefore, we show the existence and regularity of weak solutions, the existence of global attractors, the estimation of the fractal dimension of the global attractors, and finally, the relationship of the autonomous dynamics between the modified system and the non-modified system.
引用
收藏
页数:29
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