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We consider the control of a three-dimensional thin liquid film on a flat substrate, inclined at a non-zero angle to the horizontal. Controls are applied via same-fluid blowing and suction through the substrate surface. We consider both…

In this paper we consider a nonlinear system of PDEs coupling the viscous Cahn-Hilliard-Oono equation with dynamic boundary conditions enjoying a similar structure on the boundary. After proving well-posedness of the corresponding initial…

偏微分方程分析 · 数学 2023-09-19 Gianni Gilardi , Elisabetta Rocca , Andrea Signori

We investigate global strong solutions for the incompressible viscoelastic system of Oldroyd--B type with the initial data close to a stable equilibrium. We obtain the existence and uniqueness of the global solution in a functional setting…

偏微分方程分析 · 数学 2011-02-03 Ting Zhang , Daoyuan Fang

We consider the Vlasov-Poisson system that is equipped with an external magnetic field to describe the time evolution of the distribution function of a plasma. An optimal control problem where the external magnetic field is the control…

最优化与控制 · 数学 2021-10-12 Patrik Knopf , Jörg Weber

We consider a stochastic model which describes the motion of a 2D incompressible fluid in a unbounded domain with viscosity and memory effects. This model is different from the classical stochastic Navier-Stokes-Voigt equations due to the…

偏微分方程分析 · 数学 2022-11-08 Yadong Liu , Wenjun Liu , Xin-Guang Yang , Yasi Zheng

Generalized Navier-Stokes equations which were proposed recently to describe active turbulence in living fluids are analyzed rigorously. Results on wellposedness and stability in the $L^2(\mathbb{R}^n)$-setting are derived. Due to the…

偏微分方程分析 · 数学 2016-04-08 Florian Zanger , Hartmut Löwen , Jürgen Saal

This article discusses an optimal control problem for a phase field model of two immiscible incompressible fluid flow, incorporating surface tension effects. The optimal control problem is defined with a $L^2$-cost functional and subject to…

最优化与控制 · 数学 2026-05-12 Arghya Kundu

In this paper, we first derive the compressible Navier-Stokes/Landau-Lifshitz-Gilbert (NS-LLG) model for magnetoelastic materials via the energetic variational approach (EnVarA). It is important to emphasize that the manner in which the…

偏微分方程分析 · 数学 2026-04-23 Boling Guo , Ning Jiang , Hui Liu , Yi-Long Luo , Teng-Fei Zhang

In this paper, we consider numerical approximations for solving the nonlinear magneto-hydrodynamical system, that couples the Navier-Stokes equations and Maxwell equations together. A challenging issue to solve this model numerically is…

数值分析 · 数学 2017-11-28 Guodong Zhang , Xiaoming He , Xiaofeng Yang

We study the optimal control of a rate-independent system that is driven by a convex, quadratic energy. Since the associated solution mapping is non-smooth, the analysis of such control problems is challenging. In order to derive optimality…

最优化与控制 · 数学 2016-11-04 Ulisse Stefanelli , Gerd Wachsmuth , Daniel Wachsmuth

In this paper, we study the global well-posedness and decay rates of strong solutions to an incompressible Vlasov-MHD model arising in magnetized plasmas. This model is consist of the Vlasov equation and the incompressible…

偏微分方程分析 · 数学 2024-08-27 Fucai Li , Jinkai Ni , Man Wu

Starting from a two-dimensional theory of magneto-elasticity for fiber-reinforced magnetic elastomers we carry out a rigorous dimension reduction to derive a rod model that describes a thin magneto-elastic strip undergoing planar…

软凝聚态物质 · 物理学 2021-08-17 Jacopo Ciambella , Martin Kružík , Giuseppe Tomassetti

In this article, we prove the local well-posedness, for arbitrary initial data with certain regularity assumptions, of the equations of a Viscoelastic Fluid of Johnson-Segalman type with a free surface. More general constitutive laws can be…

偏微分方程分析 · 数学 2009-11-17 Hervé Le Meur

The aim of this work is to study the Navier-Stokes-Voigt equations that govern flows with non-negative density of incompressible fluids with elastic properties. For the associated non-linear initial-and boundary-value problem, we prove the…

偏微分方程分析 · 数学 2023-09-04 Hermenegildo Borges de Oliveira , Khonatbek Khompysh , Aidos Ganizhanuly Shakir

The author studies the flows of an ideal incompressible fluid in a 2-dimensional domain, and in particular questions of instability and controllability.

偏微分方程分析 · 数学 2009-09-25 Alexander Shnirelman

We are concerned with the well-posedness of the density-dependent incompressible viscoelastic fluid system. By Schauder-Tychonoff fixed point argument, when $\|{1}/{\rho_0}-1\|_{\dot{B}_{p,1}^{{N}/{p}}}$ is small, local well-posedness is…

偏微分方程分析 · 数学 2011-05-25 Huazhao Xie , Yunxia Fu

We present the linear theory of two-dimensional incompressible magneto-Rayleigh-Taylor instability in a system composed of a linear elastic (Hookean) layer above a lighter semi-infinite ideal fluid with magnetic fields present, above and…

流体动力学 · 物理学 2019-05-01 S. A. Piriz , A. R. Piriz , N. A. Tahir

We study the interaction of an incompressible fluid in two dimensions with an elastic structure yielding the moving boundary of the physical domain. The displacement of the structure is described by a linear viscoelastic beam equation. Our…

偏微分方程分析 · 数学 2022-09-28 Dominic Breit

In this paper, we obtain the low order global well-posedness and the asymptotic behavior of solution of 2D MHD problem with partial dissipation in half space with non-slip boundary condition. When magnetic field equal zero, the system be…

偏微分方程分析 · 数学 2024-03-01 Jiakun Jin , Xiaoxia Ren , Lei Wang

We study the Muskat problem describing the spatially periodic motion of two fluids with equal viscosities under the effect of gravity in a vertical unbounded two-dimensional geometry. We first prove that the classical formulation of the…

偏微分方程分析 · 数学 2017-06-29 Anca-Voichita Matioc , Bogdan-Vasile Matioc