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相关论文: Prandtl Equations and Related Boundary Layer Equat…

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In this paper we consider the Muskat problem describing the motion of two unbounded immiscible fluid layers with equal viscosities in vertical or horizontal two-dimensional geometries. We first prove that the mathematical model can be…

偏微分方程分析 · 数学 2018-10-10 Bogdan-Vasile Matioc

A new multidimensional simulation code for relativistic two-fluid electrodynamics (RTFED) is described. The basic equations consist of the full set of Maxwell's equations coupled with relativistic hydrodynamic equations for separate two…

高能天体物理现象 · 物理学 2016-11-09 Takanobu Amano

This is the author Master's Thesis and its main purpose is to demonstrate that it is possible to formulate Einstein's field equations as an initial value problem. The first chapter concerns the hyperbolic equations theory. The definition of…

广义相对论与量子宇宙学 · 物理学 2019-02-26 Marica Minucci

A system of boundary-domain integral equations is derived from the bidimensional Dirichlet problem for the diffusion equation with variable coefficient using the novel parametrix from [22] different from the one in [5,18]. Mapping…

偏微分方程分析 · 数学 2020-11-23 C. F. Portillo , Z. W. Woldemicheal

In this paper, we find various analytic (1+3)D solutions to relativistic ideal hydrodynamic equations based on embedding of known low-dimensional scaling solutions. We first study a class of flows with 2D Hubble Embedding, for which a…

核理论 · 物理学 2014-11-20 Shu Lin , Jinfeng Liao

This book considers posing and the methods of solving simple linear boundary-value problems in classical mathematical physics. The questions encompassed include: the fundamentals of calculus of variations; one-dimensional boundary-value…

数学物理 · 物理学 2015-03-06 V. M. Adamyan , M. Ya. Sushko

The nonlocal models of peridynamics have successfully predicted fractures and deformations for a variety of materials. In contrast to local mechanics, peridynamic boundary conditions must be defined on a finite volume region outside the…

偏微分方程分析 · 数学 2021-06-29 Mikil Foss , Petronela Radu , Yue Yu

Context. An essential facet of turbulence is the space-time intermittency of the cascade of energy that leads to coherent structures of high dissipation. Aims. In this work, we attempt to investigate systematically the physical nature of…

星系天体物理 · 物理学 2022-08-31 Thibaud Richard , Pierre Lesaffre , Edith Falgarone , Andrew Lehmann

We prove the local well-posedness in Sobolev spaces of the free-boundary problem for compressible inviscid resistive isentropic MHD system under the Rayleigh-Taylor physical sign condition, which describes the motion of a free-boundary…

偏微分方程分析 · 数学 2023-03-24 Junyan Zhang

In this chapter, we aim at presenting the basic techniques necessary to go beyond the widely accepted paradigm of second-order numerics. We specifically focus on finite-volume schemes for hyperbolic conservation laws occuring in fluid…

数值分析 · 数学 2024-07-29 Jean-Mathieu Teissier , Wolf-Christian Müller

This is the first part of a two paper sequence in which we prove the global-in-x stability of the classical Prandtl boundary layer for the 2D, stationary Navier-Stokes equations. In this part, we provide a construction of an approximate…

偏微分方程分析 · 数学 2021-09-10 Sameer Iyer , Nader Masmoudi

Multi-component fluid flow simulations in multi-scale porous structures often involve regions that are under-resolved at practical computational resolutions. Accurately capturing the contributions from these unresolved regions is critical.…

Whether or not the classical solutions of the two-dimensional (2D) incompressible magnetohydrodynamics (MHD) equations with only Laplacian magnetic diffusion (without velocity dissipation) are globally well-posed is a difficult problem and…

偏微分方程分析 · 数学 2023-03-31 Zhuan Ye

In the present paper, we address a physically-meaningful extension of the linearised Prandtl equations around a shear flow. Without any structural assumption, it is well-known that the optimal regularity of Prandtl is given by the class…

偏微分方程分析 · 数学 2023-01-03 Francesco De Anna , Joshua Kortum , Stefano Scrobogna

In this paper, we study the existence of strong solutions to the two-phase magnetohydrodynamic equations in a bounded domain $\Omega\subseteq \mathbb{R}^3$. The fluids are incompressible, viscous, and resistive. The surface tension is…

偏微分方程分析 · 数学 2024-10-01 Tian Jing , Dehua Wang

In this book, there are five chapters: The Laplace Transform, Systems of Homogeneous Linear Differential Equations (HLDE), Methods of First and Higher Orders Differential Equations, Extended Methods of First and Higher Orders Differential…

历史与综述 · 数学 2018-07-24 Mohammed K A Kaabar

The paper contains a survey of the results obtained during the last ten years in the theory of elliptic boundary problems in H\"ormander function spaces, developed by the authors, and other related results of modern analysis. The basics of…

偏微分方程分析 · 数学 2024-08-15 V. A. Mikhailets , A. A. Murach , I. S. Chepurukhina

We prove that certain Sobolev-type norms, slightly stronger than those given by energy conservation, stay bounded uniformly in time and $N$. This allows one to extend the local existence results of the second and third author globally in…

偏微分方程分析 · 数学 2020-08-06 Jacky Jia Wei Chong , Manoussos G. Grillakis , Matei Machedon , Zehua Zhao

It is well known that the Prandtl boundary layer equation is instable, and the well-posedness in Sobolev space for the Cauchy problem is an open problem. Recently, under the Oleinik's monotonicity assumption for the initial datum, [1] have…

偏微分方程分析 · 数学 2015-05-28 Weixi Li , Di Wu , Chao-Jiang Xu

Recent years have seen a significant progress in the development of general relativistic codes for the numerical solution of the equations of magnetohydrodynamics in spacetimes with high and dynamical curvature. These codes are valuable…

高能天体物理现象 · 物理学 2024-04-23 Yosuke Mizuno , Luciano Rezzolla