Results 21 to 30 of about 1,204 (187)

On a System of Equations of a Non-Newtonian Micropolar Fluid [PDF]

open access: yesJournal of Applied Mathematics, 2015
We investigate a problem for a model of a non-Newtonian micropolar fluid coupled system. The problem has been considered in a bounded, smooth domain ofR3with Dirichlet boundary conditions. The operator stress tensor is given byτ(e(u))=[(ν+ν0M(|e(u)|2))e(u)].
de Araújo, G. M.   +2 more
openaire   +3 more sources

A Regularity Criterion for the Magneto-Micropolar Fluid Equations in B˙∞,∞−1

open access: yesDiscrete Dynamics in Nature and Society, 2013
The paper is dedicated to study of the Cauchy problem for the magneto-micropolar fluid equations in three-dimensional spaces. A new logarithmically improved regularity criterion for the magneto-micropolar fluid equations is established in terms of the ...
Zhihao Tang, Gang Wang, Haiwa Guan
doaj   +1 more source

Combined Effects of Viscosity Variation and Surface Roughness on the Squeeze Film Lubrication of Journal Bearings with Micropolar Fluids

open access: yesTribology Online, 2014
In this paper, a theoretical study of the combined effects of viscosity variation and surface roughness on the squeeze film performance of journal bearings lubricated with micropolar fluid is made.
Neminath Bhujappa Naduvinamani   +3 more
doaj   +1 more source

Logarithmical Regularity Criteria of the Three-Dimensional Micropolar Fluid Equations in terms of the Pressure

open access: yesAbstract and Applied Analysis, 2012
This paper is devoted to the regularity criterion of the three-dimensional micropolar fluid equations. Some new regularity criteria in terms of the partial derivative of the pressure in the Lebesgue spaces and the Besov spaces are obtained which improve ...
Yan Jia, Jing Zhang, Bo-Qing Dong
doaj   +1 more source

A regularity criterion for the three-dimensional micropolar fluid system in homogeneous Besov spaces

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
By establishing a new trilinear estimate, we show a regularity criterion for the three dimensional micropolar fluid system via the velocity in homogeneous Besov spaces. This improves [B. Q. Dong, Z. L.
Zujin Zhang
doaj   +1 more source

Mathematical modelling of boundary layer flow over a permeable and time-dependent shrinking sheet – A stability analysis

open access: yesJournal of Mechanical Engineering and Sciences, 2022
Micropolar fluid is one type of non-Newtonian fluid which consists of non-deformable spherical particles that suspended in viscous medium. In this paper, the problem of two-dimensional boundary layer flow over a permeable shrinking sheet with time ...
J. G. Tan , Y.Y. Lok , I. Pop
doaj   +1 more source

Exact controllability of Galerkin’s approximations of micropolar fluids [PDF]

open access: yesProceedings of the American Mathematical Society, 2009
We consider the nonlinear model describing micropolar fluid in a bounded smooth region of R
Araruna, F. D.   +2 more
openaire   +4 more sources

Thermodynamic properties of Casson-Sutterby-micropolar fluid flow over exponential stretching curved sheet with impact of MHD and heat generation

open access: yesCase Studies in Thermal Engineering
The study focuses on the dynamic properties of models describing the flow of couples' micropolar-Casson-Sutterby fluids over an exponentially curved sheet. The study takes into account a low Reynolds number, magnetic field effects, and chemical reactions.
Nadeem Abbas   +2 more
doaj   +1 more source

Pulsating flow of a micropolar-Casson fluid through a constricted channel influenced by a magnetic field and Darcian porous medium: A numerical study

open access: yesResults in Physics, 2020
The behavior of the pulsatile flow of non-Newtonian micropolar-Casson fluid in a constricted channel influenced by Lorentz force following Darcy's law is examined.
Amjad Ali   +3 more
doaj   +1 more source

On the Regularity for Solutions of the Micropolar Fluid Equations

open access: yesRendiconti del Seminario Matematico della Università di Padova, 2009
We give sufficient conditions on the kinematics pressure in order to obtain regularity and uniqueness of the weak solutions to the micropolar fluid equations.
Ortega-Torres, Elva, Rojas-Medar, Marko
openaire   +3 more sources

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