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The present contribution investigates the well-posedness of a PDE system describing the evolution of a nematic liquid crystal flow under kinematic transports for molecules of different shapes. More in particular, the evolution of the {\em…

偏微分方程分析 · 数学 2015-05-28 Cecilia Cavaterra , Elisabetta Rocca

A model describing the evolution of a liquid crystal substance in the nematic phase is investigated in terms of three basic state variables: the {\it absolute temperature} $\teta$, the {\it velocity field} $\ub$, and the {\it director…

偏微分方程分析 · 数学 2015-05-14 E. Feireisl , E. Rocca , G. Schimperna

In this article we initiate the mathematical study of the dynamics of a system of nonlinear Partial Differential Equations modelling the motion of incompressible, isothermal and conducting modified bipolar fluids in presence of magnetic…

偏微分方程分析 · 数学 2012-06-25 Paul Andre Razafimandimby

We consider a 2D system that models the nematic liquid crystal flow through the Navier--Stokes equations suitably coupled with a transport-reaction-diffusion equation for the averaged molecular orientations. This system has been proposed as…

偏微分方程分析 · 数学 2012-10-09 Maurizio Grasselli , Hao Wu

We consider a hydrodynamic system that models the Smectic-A liquid crystal flow. The model consists of the Navier-Stokes equation for the fluid velocity coupled with a fourth-order equation for the layer variable $\vp$, endowed with…

偏微分方程分析 · 数学 2012-02-21 Antonio Segatti , Hao Wu

We show that for any fixed accuracy and time length $T$, a {\it finite} number of $T$-time length pieces of the complete trajectories on the global attractor are capable of uniformly approximating all trajectories within the accuracy in the…

动力系统 · 数学 2023-05-09 Songsong Lu

In this paper, we consider a simplified Ericksen-Leslie model for the nematic liquid crystal flow. The evolution system consists of the Navier-Stokes equations coupled with a convective Ginzburg-Landau type equation for the averaged…

偏微分方程分析 · 数学 2013-05-07 Maurizio Grasselli , Hao Wu

In this article we study a system of nonlinear PDEs modelling the electrokinetics of a nematic electrolyte material consisting of various ions species contained in a nematic liquid crystal. The evolution is described by a system coupling a…

偏微分方程分析 · 数学 2019-09-04 E. Feireisl , E. Rocca , G. Schimperna , A. Zarnescu

We consider a nonlinear reaction-diffusion equation settled on the whole euclidean space. We prove the well-posedness of the corresponding Cauchy problem in a general functional setting, namely, when the initial datum is uniformly locally…

偏微分方程分析 · 数学 2009-10-20 Maurizio Grasselli , Dalibor Pražák , Giulio Schimperna

Under non-periodic boundary conditions, we consider the long-time behavior for stochastic 2D nematic liquid crystals flows with velocity and orientations perturbed by additive noise and multiplicative noise respectively. It is the first…

偏微分方程分析 · 数学 2018-03-30 Guoli Zhou

We study the global attractors for the damped 3D Euler--Bardina equations with the regularization parameter $\alpha>0$ and Ekman damping coefficient $\gamma>0$ endowed with periodic boundary conditions as well as their damped Euler limit…

偏微分方程分析 · 数学 2021-12-28 Alexei Ilyin , Anna Kostianko , Sergey Zelik

In [Adv. Math., 267(2014), 277-306], Cheskidov and Lu develop a new framework of the evolutionary system that deals directly with the notion of a uniform global attractor due to Haraux, and by which a trajectory attractor is able to be…

动力系统 · 数学 2022-09-19 Songsong Lu

The Cahn-Hilliard-Navier-Stokes system is based on a well-known diffuse interface model and describes the evolution of an incompressible isothermal mixture of binary fluids. A nonlocal variant consists of the Navier-Stokes equations…

偏微分方程分析 · 数学 2015-05-30 Sergio Frigeri , Maurizio Grasselli

In this article we study the long-time behaviour of a system of nonlinear Partial Differential Equations (PDEs) modelling the motion of incompressible, isothermal and conducting modified bipolar fluids in presence of magnetic field. We…

偏微分方程分析 · 数学 2015-07-06 Paul Andre Razafimandimby

We introduce a new class of non-isothermal models describing the evolution of nematic liquid crystals and prove their consistency with the fundamental laws of classical Thermodynamics. The resulting system of equations captures all…

偏微分方程分析 · 数学 2015-05-27 E. Feireisl , M. Fre'mond , E. Rocca , G. Schimperna

We obtain the existence and the structure of the weak uniform (with respect to the initial time) global attractor and construct a trajectory attractor for the 3D Navier-Stokes equations (NSE) with a fixed time-dependent force satisfying a…

动力系统 · 数学 2023-05-09 Alexey Cheskidov , Songsong Lu

We consider two-dimensional nonstationary Navier-Stokes shear flow with multivalued and nonmonotone boundary conditions on a part of the boundary of the flow domain. We prove the existence of global in time solutions of the considered…

偏微分方程分析 · 数学 2015-09-28 P. Kalita , G. Łukaszewicz

We summarise some recent results on solution landscapes for two-dimensional (2D) problems in the Landau--de Gennes theory for nematic liquid crystals. We study energy-minimizing and non energy-minimizing solutions of the Euler--Lagrange…

软凝聚态物质 · 物理学 2021-08-02 Yucen Han , Apala Majumdar

In this paper we prove the existence of global in time weak solutions for an evolutionary PDE system modelling nonisothermal Landau-de Gennes nematic liquid crystal (LC) flows in three dimensions of space. In our model, the incompressible…

偏微分方程分析 · 数学 2013-11-01 Eduard Feireisl , Elisabetta Rocca , Giulio Schimperna , Arghir Zarnescu

The nonlinear elastic properties of nematic liquid crystals have acquired new interest with the recent experimental observation of bulk modulated nematic phases which are composed by achiral molecules. We extend the Oseen-Zocher-Frank's…

软凝聚态物质 · 物理学 2018-11-09 I. Lelidis , G. Barbero
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