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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

In this paper, we consider the Cauchy problem to the Ericksen-Leslie system of liquid crystals in $\mathbb R^3$. Global well-posedness of strong solutions are obtained under the condition that the product of $\|u_0\|_2+\|\nabla d_0\|_2$ and…

偏微分方程分析 · 数学 2014-04-15 Wenya Ma , Jinkai Li , Huajun Gong

We consider the Cauchy problem to the two-dimensional incompressible liquid crystal equation and the heat flows of harmonic maps equation. Under a natural geometric angle condition, we give a new proof of the global well-posedness of smooth…

偏微分方程分析 · 数学 2012-10-08 Zhen Lei , Dong Li , Xiaoyi Zhang

In this paper, we are concerned with the global existence and optimal rates of strong solutions for three-dimensional compressible viscoelastic flows. We prove the global existence of the strong solutions by the standard energy method under…

偏微分方程分析 · 数学 2012-09-26 Xianpeng Hu , Guochun Wu

We study the long-time behavior of global strong solutions to a hydrodynamic system for nonhomogeneous incompressible nematic liquid crystal flows driven by two types of external forces in a smooth bounded domain in $\mathbb{R}^2$. For…

偏微分方程分析 · 数学 2013-06-27 Xianpeng Hu , Hao Wu

We develop a Q-tensor model of nematic liquid crystals occupying a stationary surface which represents a fluidic material film in space. In addition to the evolution due to Landau--de\,Gennes energy the model includes a tangent viscous…

流体动力学 · 物理学 2023-10-06 Lucas Bouck , Ricardo H. Nochetto , Vladimir Yushutin

This paper concerns the Cauchy problem of three-dimensional compressible liquid crystal flows with density-dependent viscosity. When the viscosity coefficients $\mu_1(\rho),\mu_2(\rho)$ are power functions of the density with the power…

偏微分方程分析 · 数学 2025-07-08 Jiaxu Li , Yu Mei , Rong Zhang

In this paper, a compressible viscous-dispersive Euler system in one space dimension in the context of quantum hydrodynamics is considered. The purpose of this study is twofold. First, it is shown that the system is locally well-posed. For…

偏微分方程分析 · 数学 2023-09-04 Ramón G. Plaza , Delyan Zhelyazov

The evolution of two partially miscible, nonhomogeneous, incompressible viscous fluids of non-Newtonian type, can be governed by the Navier-Stokes-Cahn-Hilliard system. In the present work, we prove the global existence of weak solutions…

偏微分方程分析 · 数学 2025-12-25 Fang Li , Duan Xingyu , Guo Zhenhua

We establish the global-in-time existence of weak solutions to a variant of the BGK model proposed by Bouchut [J. Stat. Phys., 95, (1999), 113--170] which leads to the barotropic Euler equations in the hydrodynamic limit. Our existence…

偏微分方程分析 · 数学 2023-03-22 Young-Pil Choi , Byung-Hoon Hwang

In this paper we consider the global existence of weak solutions to a class of Quantum Hydrodynamics (QHD) systems with initial data, arbitrarily large in the energy norm. These type of models, initially proposed by Madelung, have been…

偏微分方程分析 · 数学 2009-11-13 Paolo Antonelli , Pierangelo Marcati

We consider the evolution and interaction of a 2-dimensional nematic liquid crystal of Ericksen-Leslie type within a 1-dimensional flexible viscoelastic structure. This is a fully macroscopic model in which the nematic liquid crystal is…

偏微分方程分析 · 数学 2026-05-08 Prince Romeo Mensah

We investigate the incompressible hydrodynamic system of the active nematic liquid crystals in the Beris-Edwards framework. Although we focus on constant activity in this paper, the simplified system derived from it exhibits the potential…

偏微分方程分析 · 数学 2026-04-07 Fan Yang

In this paper, we consider a two-phase flow model consisting of the compressible Navier-Stokes systems with degenerate viscosity coupled with the compressible Navier-Stokes systems with constant viscosities via a drag force, which can be…

偏微分方程分析 · 数学 2022-03-11 Ya-Ting Wang , Ling-Yun Shou

The work deals with the Ericksen-Leslie System for nematic liquid crystals on the whole space. In our work we suppose the initial condition of the orientation field stays on an arc connecting two fixed orthogonal vectors on the unit sphere.…

偏微分方程分析 · 数学 2023-05-24 Daniele Barbera , Vladimir Georgiev

We consider a thermodynamically consistent diffuse interface model describing two-phase flows of incompressible fluids in a non-isothermal setting. This model was recently introduced in a previous paper of ours, where we proved existence of…

偏微分方程分析 · 数学 2014-06-09 Michela Eleuteri , Elisabetta Rocca , Giulio Schimperna

We consider the Cauchy problem for incompressible viscoelastic fluids in the whole space $\mathbb{R}^d$ ($d=2,3$). By introducing a new decomposition via Helmholtz's projections, we first provide an alternative proof on the existence of…

偏微分方程分析 · 数学 2023-07-28 Xianpeng Hu , Hao Wu

The aim of this paper is to prove the existence of almost global weak solutions for the unsteady nonlinear elastodynamics system in dimension $d=2$ or $3$, for a range of strain energy density functions satisfying some given assumptions.…

偏微分方程分析 · 数学 2017-06-05 Sébastien Court , Karl Kunisch

In this paper, we consider a hydrodynamic $Q$-tensor system for nematic liquid crystal flow, which is derived from Doi-Onsager molecular theory by the Bingham closure. We first prove the existence and uniqueness of local strong solution.…

偏微分方程分析 · 数学 2014-10-14 Sirui Li , Wei Wang , Pingwen Zhang

We consider a general family of regularized systems for the full Ericksen-Leslie model for the hydrodynamics of liquid crystals in $n$-dimensional compact Riemannian manifolds, $n$=2,3. The system we consider consists of a regularized…

偏微分方程分析 · 数学 2015-07-21 Ciprian G. Gal , Louis Tebou