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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

We study the equations of a two dimensional incompressible Newtonian fluid coupled with a dispersive parabolic-elliptic system on bounded domains. Global in time weak solutions are shown to exist and converge with a rate to the stationary…

偏微分方程分析 · 数学 2008-10-14 Rolf J. Ryham

The general Ericksen-Leslie system for the flow of nematic liquid crystals is reconsidered in the non-isothermal case aiming for thermodynamically consistent models. The non-isothermal model is then investigated analytically. A fairly…

偏微分方程分析 · 数学 2015-04-07 Matthias Hieber , Jan Pruess

Characterizing the local voltage distribution within nanophysiological domains, driven by ionic currents through membrane channels, is crucial for studying cellular activity in modern biophysics, yet it presents significant experimental and…

软凝聚态物质 · 物理学 2026-05-14 Frédéric Paquin-Lefebvre , Alejandro Barea Moreno , David Holcman

Based on the (3+1)-dimensional hydrodynamic model, the space-time evolution of hot and dense nuclear matter produced in non-central relativistic heavy-ion collisions is discussed. The elliptic flow parameter v_2 is obtained by Fourier…

核理论 · 物理学 2007-05-23 Tetsufumi Hirano

In traditional hydrodynamic theories for ionic fluids, conservation of the mass and linear momentum is not properly taken care of. In this paper, we develop hydrodynamic theories for a viscous, ionic fluid of $N$ ionic species enforcing…

流体动力学 · 物理学 2018-11-08 Xiaogang Yang , Yuezheng Gong , Jun Li , Robert S. Eisenberg , Qi Wang

We study a simplified system of the original Ericksen--Leslie equations for the flow of nematic liquid crystals. This is a coupled non-parabolic dissipative dynamic system. We show the convergence of global classical solutions to single…

偏微分方程分析 · 数学 2010-11-04 Hao Wu

In multispecies electrolyte solutions, even in the absence of an external electric field, differences in ion diffusivities induce an electric potential and generate additional fluxes for each species. This electro-diffusion process is…

流体动力学 · 物理学 2023-11-14 Lingyun Ding

This paper is concerned with a predator-prey model in $N$-dimensional spaces ($N=1, 2, 3$), given by \begin{align*}\left\{\begin{aligned} &\frac{\partial u}{\partial t}=\Delta u-\chi\nabla\cdot(u\nabla v),\\ &\frac{\partial v}{\partial…

偏微分方程分析 · 数学 2025-05-01 Chunhua Jin , Yifu Wang

The main goal of this work is to examine the qualitative effect of ion sizes via a steady-state boundary value problem. We study a one-dimensional version of a Poisson-Nernst-Planck system with a local hard-sphere potential model for ionic…

数学物理 · 物理学 2022-03-18 Weishi Liu , Hamid Mofidi

In this paper, we investigate the Cauchy problem for the incompressible nematic liquid crystal flows in three-dimensional whole space. First of all, we establish the global existence of solution by energy method under assumption of small…

偏微分方程分析 · 数学 2015-01-27 Jincheng Gao , Qiang Tao , Zheng-an Yao

Providing evidence of finite-time singularities of the incompressible Euler equations in three space dimensions is still an unsolved problem. Likewise, the zeroth law of turbulence has not been proven to date by numerical experiments. We…

流体动力学 · 物理学 2020-07-06 Niklas Fehn , Martin Kronbichler , Peter Munch , Wolfgang A Wall

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

In this paper, we present a new framework for the global well-posedness and large-time behavior of a two-phase flow system, which consists of the pressureless Euler equations and incompressible Navier-Stokes equations coupled through the…

偏微分方程分析 · 数学 2023-07-24 Feimin Huang , Houzhi Tang , Weiyuan Zou

We derive a linearly causal and stable third-order relativistic fluid-dynamical theory from the Boltzmann equation using the method of moments. For this purpose, we demonstrate that such theory must include novel degrees of freedom,…

核理论 · 物理学 2023-02-21 Caio V. P. de Brito , Gabriel S. Denicol

We consider a rather general class of non-local in time Fokker-Planck equations and show by means of the entropy method that as $t\to \infty$ the solution converges in $L^1$ to the unique steady state. Important special cases are the…

偏微分方程分析 · 数学 2018-08-03 Jukka Kemppainen , Rico Zacher

We consider the hydrodynamic behavior of some conservative particle systems with degenerate jump rates without exclusive constraints. More precisely, we study the particle systems without restrictions on the total number of particles per…

概率论 · 数学 2017-05-01 Makiko Sasada

We consider a non acoustic chain of harmonic oscillators with the dynamics perturbed by a random local exchange of momentum, such that energy and momentum are conserved. The macroscopic limits of the energy density, momentum and the…

数学物理 · 物理学 2016-08-24 Tomasz Komorowski , Stefano Olla

We derive the exact solution of the Boltzmann kinetic equation for the three-dimensional Lorentz model in the presence of a constant and uniform magnetic field. The velocity distribution of the electrons reduces exponentially fast to its…

统计力学 · 物理学 2009-11-11 F. Cornu , J. Piasecki

We prove existence of global weak solutions for the Nernst-Planck-Poisson problem which describes the evolution of concentrations of charged species $X_1, ..., X_P$ subject to Fickian diffusion and chemical reactions in the presence of an…

偏微分方程分析 · 数学 2016-04-01 Dieter Bothe , André Fischer , Michel Pierre , Guillaume Rolland