A coupled anisotropic chemotaxis-fluid model: The case of two-sidedly degenerate diffusion

被引:13
作者
Chamoun, Georges [1 ,2 ,3 ]
Saad, Mazen [1 ]
Talhouk, Raafat [2 ,3 ]
机构
[1] Ecole Cent Nantes, UMR CNRS 6629, Lab Math Jean Leray, F-44321 Nantes, France
[2] Univ Libanaise, EDST, Hadath, Beyrouth, Lebanon
[3] Fac Sci I, Math Lab, Hadath, Beyrouth, Lebanon
关键词
Degenerate parabolic equation; Navier-Stokes equations; Heterogeneous and anisotropic diffusion; Global existence of solutions; GLOBAL EXISTENCE;
D O I
10.1016/j.camwa.2014.04.010
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this article, the mathematical analysis of a model arising from biology consisting of diffusion, chemotaxis with volume filling effect and transport through an incompressible fluid, is studied. Motivated by numerical and modeling issues, the global-in-time existence of weak solutions to this model is investigated. The novelty with respect to other related papers lies in the presence of two-sidedly nonlinear degenerate diffusion and of anisotropic and heterogeneous diffusion tensors where we prove the global existence for a Chemotaxis-Navier-Stokes system in space dimensions less than or equal to four and we show the uniqueness of weak solutions for the Chemotaxis-Stokes system in two or three space dimensions under further assumptions. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1052 / 1070
页数:19
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