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In this paper we study the existence of solutions to a steady system that describes the motion of a micropolar electrorheological fluid. The constitutive relations for the stress tensors belong to the class of generalized Newtonian fluids.…

偏微分方程分析 · 数学 2021-12-16 Alex Kaltenbach , Michael Růžička

A generalization to the Kraichnan gaussian, white noise in time model of turbulent velocity field is proposed. The generalization is designed to take into account the effects of stratification in the atmospheric boundary layer by…

混沌动力学 · 物理学 2011-04-05 Heikki Arponen

We consider the model of a transverse vector (e.g. magnetic) field with the most general form of the nonlinearity, known as the ${\cal A}$ model, passively advected by a strongly compressible turbulent flow, governed by the randomly stirred…

流体动力学 · 物理学 2021-12-21 Nikolai V. Antonov , Maria M. Tumakova

We are concerned with the barotropic compressible Navier-Stokes equations on the real line. Our primary goal is to establish the global well-posedness in a critical regularity framework in the case where the initial data are small…

偏微分方程分析 · 数学 2026-03-17 Raphaël Danchin

We consider the Nernst-Planck-Navier-Stokes system in a bounded domain of ${\mathbb {R}}^d$, $d=2,3$ with general nonequilibrium Dirichlet boundary conditions for the ionic concentrations. We prove the existence of smooth steady state…

偏微分方程分析 · 数学 2022-10-19 Peter Constantin , Mihaela Ignatova , Fizay-Noah Lee

In this paper, the compressible quantum model with the given mass source and the external force of general form in three-dimensional whole space is considered. Based on the weighted $L^2$ method and $L^\infty$ estimates, the existence and…

偏微分方程分析 · 数学 2021-10-27 Xiaoyu Xi

We construct large velocity vector solutions to the three dimensional inhomogeneous Navier-Stokes system. The result is proved via the stability of two dimensional solutions with constant density, under the assumption that initial density…

偏微分方程分析 · 数学 2019-01-29 Piotr B. Mucha , Liutang Xue , Xiaoxin Zheng

We consider the compressible Navier-Stokes equation with density dependent viscosity coefficients, focusing on the case where those coefficients vanish on vacuum. We prove the stability of weak solutions both in the torus and in the whole…

偏微分方程分析 · 数学 2007-05-23 Antoine Mellet , Alexis F. Vasseur

The Cahn-Hilliard equation is a fundamental model that describes phase separation processes of two-phase flows or binary mixtures. In recent years, the dynamic boundary conditions for the Cahn-Hilliard equation have been proposed and…

动力系统 · 数学 2024-12-12 Shuting Gu , Ming Xiao , Rui Chen

In this paper, kinds of Schr\"{o}dinger type equations with slowly decaying linear potential and power type or convolution type nonlinearities are considered. By using the concentration compactness principle, the sharp Gagliardo-Nirenberg…

偏微分方程分析 · 数学 2019-05-21 Xinfu Li , Junying Zhao

In this paper, We study an one--dimensional morphogenesis model considered by C. Stinner et al. in (Math. Meth. Appl. Sci. 2012,35 (445-465). Under homogeneous boundary conditions, we prove the existence of nonconstant positive steady…

偏微分方程分析 · 数学 2016-01-20 Haohao Chen , Bo Tong , Qi Wang

We consider existence and stability properties of nonlinear spatially periodic or quasiperiodic standing waves (SWs) in one-dimensional lattices of coupled anharmonic oscillators. Specifically, we consider Klein-Gordon (KG) chains with…

斑图形成与孤子 · 物理学 2009-11-07 Anna Maria Morgante , Magnus Johansson , Georgios Kopidakis , Serge Aubry

The paper studies the equilibrium configurations of inextensible elastic membranes exhibiting lateral fluidity. Using a continuum description of the membrane's motions based on the surface Navier--Stokes equations with bending forces, the…

流体动力学 · 物理学 2023-06-21 Maxim A. Olshanskii

This paper investigates the non-resistive compressible magnetohydrodynamic (MHD) equations in $\mathbb{R}^2$. We establish the global existence and stability of classical solutions for initial data sufficiently close to a constant…

偏微分方程分析 · 数学 2026-05-22 Yi Zhu

In this dissertation, we study the well-posedness of the three-dimensional Lagrangian averaged Navier-Stokes (LANS-$\alpha$) equations. There are two types of LANS-$\alpha$ equations: the anisotropic version in which the fluctuation tensor…

偏微分方程分析 · 数学 2008-08-28 James Peirce

This paper is concerned with the evolution of the periodic boundary value problem and the mixed boundary value problem for a compressible mixture of binary fluids modeled by the Navier-Stokes-Cahn-Hilliard system in one dimensional space.…

偏微分方程分析 · 数学 2018-06-08 Yazhou Chen , Qiaolin He , Ming Mei , Xiaoding Shi

We are interested in studying an unsteady fluid-structure interaction problem in a three-dimensional space. We consider a homogeneous Newtonian fluid which is modeled by the Navier-Stokes equations. Whereas the motion of the structure is…

偏微分方程分析 · 数学 2019-10-14 Fatima Abbas , Ayman Mourad

I consider the problem of weakly nonlinear stability of three-dimensional convective magnetohydrodynamic systems, where there is no alpha-effect or it is insignificant, to perturbations involving large scales. I assume that the convective…

混沌动力学 · 物理学 2008-11-01 V. Zheligovsky

The quasi steady-state (QSS) model tries to reach a good compromise between accuracy and efficiency in long-term stability analysis. However, the QSS model is unable to provide correct approximations and stability assessment for the…

系统与控制 · 计算机科学 2014-05-07 Xiaozhe Wang , Hsiao-Dong Chiang

We study steady solutions to the relativistic Boltzmann equation with hard-sphere interactions in a slab geometry. Under a spatial symmetry assumption in the transverse variables $x_2$ and $x_3$, the problem reduces to a one-dimensional…

偏微分方程分析 · 数学 2026-03-17 Jin Woo Jang , Seok-Bae Yun