tailieunhanh - Báo cáo hóa học: " Blow-up criterion of smooth solutions for magneto-micropolar fluid equations with partial viscosity"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Blow-up criterion of smooth solutions for magneto-micropolar fluid equations with partial viscosity | Wang et al. Boundary Value Problems 2011 2011 11 http content 2011 1 11 o Boundary Value Problems a SpringerOpen Journal RESEARCH Open Access Blow-up criterion of smooth solutions for magneto-micropolar fluid equations with partial viscosity Yu-Zhu Wang Yifang Li and Yin-Xia Wang Correspondence yuzhu108@163. com School of Mathematics and Information Sciences North China University of Water Resources and Electric Power Zhengzhou 450011 China Springer Abstract In this paper we investigate the Cauchy problem for the incompressible magnetomicropolar fluid equations with partial viscosity in Rn n 2 3 . We obtain a Beale-Kato-Majda type blow-up criterion of smooth solutions. MSC 2010 76D03 35Q35. Keywords magneto-micropolar fluid equations smooth solutions blow-up criterion 1 Introduction The incompressible magneto-micropolar fluid equations in R n 2 3 takes the following form dtu p X Au u Vu b Vb V p - b 2 XV X v 0 dtv yAv K Vdivv 2x v u Vv X V X u 0 11 dtb vAb u Vb b Vu 0 V u 0 V b 0 where u t x v t x b t x and p t x denote the velocity of the fluid the micro-rotational velocity magnetic field and hydrostatic pressure respectively. p c g K and V are constants associated with properties of the material p is the kinematic viscosity c is the vortex viscosity g and K are spin viscosities and v is the magnetic Reynold. The incompressible magneto-micropolar fluid equations has been studied extensively see 1-8 . Rojas-Medar 5 established the local in time existence and uniqueness of strong solutions by the spectral Galerkin method. Global existence of strong solution for small initial data was obtained in 4 . Rojas-Medar and Boldrini 6 proved the existence of weak solutions by the Galerkin method and in 2D case also proved the uniqueness of the weak solutions. Wang et al. 2 obtained a Beale-Kato-Majda type blow-up criterion for smooth solution u v b to the magneto-micropolar fluid equations with partial viscosity that relies on the vorticity

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