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相关论文: Corrections to Fluid Dynamics

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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

The basic concepts and equations of classical fluid mechanics are presented in the form necessary for the formulation of Newtonian cosmology and for derivation and analysis of a system of the averaged Navier-Stokes-Poisson equations. A…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Roustam Zalaletdinov

We consider a system of partial differential equations describing the steady flow of a compressible heat conducting Newtonian fluid in a three-dimensional channel with inflow and outflow part. We show the existence of a strong solution…

偏微分方程分析 · 数学 2012-12-03 Tomasz Piasecki , Milan Pokorny

Introduction: the Navier-Stokes equations are essential in fluid dynamics, describing the motion of fluids like liquids and gases. Solving these equations, especially in complex flows and high-Reynolds-number regimes, is a significant…

流体动力学 · 物理学 2024-12-05 Sebastian Ali Sacasa-Cespedes

We develop the foundations of Carrollian statistical mechanics by considering a system of interacting instantonic space-filling branes on a flat background, thereby providing the closest Carrollian analogue to the Galilean gas of…

高能物理 - 理论 · 物理学 2026-05-13 Victor Chabirand , Adrien Fiorucci , P. Marios Petropoulos , Matthieu Vilatte

We introduce a special stochastic perturbation of the flow of diffuse matter as a curve in the group of diffeomorphisms of flat n-dimensional torus such that the perturbed system yields a solution of Burgers equation in the tangent space at…

偏微分方程分析 · 数学 2009-08-07 Yuri E. Gliklikh

The global-in-time existence of bounded weak solutions to the Maxwell-Stefan-Fourier equations in Fick-Onsager form is proved. The model consists of the mass balance equations for the partial mass densities and and the energy balance…

偏微分方程分析 · 数学 2020-11-02 Christoph Helmer , Ansgar Jüngel

A constructive numerical approximation of the two-dimensional unsteady stochastic Navier-Stokes equations of an incompressible fluid is proposed via a pseudo-compressibility technique involving a parameter $\epsilon$. Space and time are…

数值分析 · 数学 2022-05-02 Jad Doghman

A recently introduced particle-based model for fluid dynamics with continuous velocities is generalized to model fluids with excluded volume effects. This is achieved through the use of biased stochastic multi-particle collisions which…

软凝聚态物质 · 物理学 2007-05-23 Erkan Tuzel , Thomas Ihle , Daniel M. Kroll

A system of partial differential equations for a diffusion interface model is considered for the stationary motion of two macroscopically immiscible, viscous Newtonian fluids in a three-dimensional bounded domain. The governing equations…

偏微分方程分析 · 数学 2020-07-28 Zhilei Liang , Dehua Wang

The hydrodynamic equations for a model of a confined quasi-two-dimensional gas of smooth inelastic hard spheres are derived from the Boltzmann equation for the model, using a generalization of the Chapman-Enskog method. The heat and…

统计力学 · 物理学 2015-06-11 J. Javier Brey , V. Buzón , P. Maynar , M. I. García de Soria

Hydrodynamics of the non-relativistic compressible fluid in the curved spacetime is derived using the generalized framework of the stochastic variational method (SVM) for continuum medium. The fluid-stress tensor of the resultant equation…

广义相对论与量子宇宙学 · 物理学 2020-05-06 T. Koide , T. Kodama

We analyze the equation coming from the Eulerian-Lagrangian description of fluids. We discuss a couple of ways to extend this notion to viscous fluids. The main focus of this paper is to discuss the first way, due to Constantin. We show…

偏微分方程分析 · 数学 2007-05-23 Stephen Montgomery-Smith , Milan Pokorny

The flow of a viscous fluid is perturbed by its internal friction which generates heat and leads to a small temperature change. This does not occur for an ideal fluid. We would like to resolve this picture as a function of the dynamical…

流体动力学 · 物理学 2014-09-30 Billy D. Jones

We consider global in time solutions of the Navier-Stokes-Fourier system describing the motion of a general compressible, viscous and heat conducting fluid far from equilibirum. Using a new concept of weak solution suitable to accommodate…

偏微分方程分析 · 数学 2021-09-03 Eduard Feireisl , Young-Sam Kwon

A new class of integro-partial differential equation models is derived for the prediction of granular flow dynamics. These models are obtained using a novel limiting averaging method (inspired by techniques employed in the derivation of…

混沌动力学 · 物理学 2015-06-26 Denis Blackmore , Roman Samulyak , Anthony Rosato

In this paper, we rigorously derive a new compressible multifluid system from compressible Navier-Stokes equations with density-dependent viscosity in the one-dimensional in space setting. More precisely, we propose and mathematically…

偏微分方程分析 · 数学 2016-02-01 D Bresch , M Hillairet

The incompressible Navier-Stokes-Fourier system with viscous heating was first derived from the Boltzmann equation in the form of the diffusive scaling by Bardos-Levermore-Ukai-Yang (2008). The purpose of this paper is to justify such an…

偏微分方程分析 · 数学 2016-11-17 Yan Guo , Shuangqian Liu

The theory of perfect fluids is reconsidered from the point of view of a covariant Lagrangian theory. It has been shown that the Euler-Lagrange equations for a perfect fluid could be found in spaces with affine connections and metrics from…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Sawa Manoff

By solving a simple kinetic equation, in the relaxation time approximation, and for a particular set of moments of the distribution function, we establish a set of equations which, on the one hand, capture exactly the dynamics of the…

核理论 · 物理学 2018-03-07 Jean-Paul Blaizot , Li Yan