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In this paper, we give an overview of the results established in [3] which provides the first rigorous derivation of hydrodynamic equations from the Boltzmann equation for inelastic hard spheres in 3D. In particular, we obtain a new system…

偏微分方程分析 · 数学 2022-05-04 Ricardo J. Alonso , Bertrand Lods , Isabelle Tristani

Formalism to calculate the hydrodynamic fluctuations by applying the Onsager theory to the relativistic Navier-Stokes equation is already known. In this work, we calculate hydrodynamic-fluctuations within the framework of the second order…

高能物理 - 唯象学 · 物理学 2014-09-16 Avdhesh Kumar , Jitesh R. Bhatt , Ananta P. Mishra

We consider the Navier--Stokes--Fourier system describing the motion of a compressible, viscous, and heat conducting fluid in a bounded domain with general non-homogeneous Dirichlet boundary conditions for the velocity and the absolute…

偏微分方程分析 · 数学 2021-06-11 Nilasis Chaudhuri , Eduard Feireisl

The system of Navier--Stokes--Fourier equations is one of the most celebrated systems of equations in modern science. It describes dynamics of fluids in the limit when gradients of density, velocity and temperature are sufficiently small,…

统计力学 · 物理学 2017-11-03 A. N. Gorban , I. V. Karlin

We investigate a one dimensional flow described with the non-compressible coupled Euler and non-compressible Navier-Stokes equations in Cartesian coordinate systems. We couple the two fluids through the continuity equation where different…

流体动力学 · 物理学 2021-09-28 I. F. Barna , Mátyás László

The inability of the Navier-Stokes-Fourier equations to capture rarefaction effects motivates us to adopt the extended hydrodynamic equations. In the present work, a hydrodynamic model, which consists of the conservation laws closed with…

流体动力学 · 物理学 2023-08-25 Himanshi , Anirudh Singh Rana , Vinay Kumar Gupta

We construct an ensemble of two-dimensional nonintegrable quantum circuits that are chaotic but have a conserved particle current, and thus a finite Drude weight. The long-wavelength hydrodynamics of such systems is given by the…

统计力学 · 物理学 2025-06-11 Hansveer Singh , Ewan McCulloch , Sarang Gopalakrishnan , Romain Vasseur

Starting from a classical thermodynamic approach, we derive rate-type equations to describe the behavior of heat flow in deformable media. Constitutive equations are defined in the material (Lagrangian) description where the standard time…

数学物理 · 物理学 2024-02-02 Claudio Giorgi , Angelo Morro , Federico Zullo

Entropy-conservative numerical flux functions can be used to construct high-order, entropy-stable discretizations of the Euler and Navier-Stokes equations. The purpose of this short communication is to present a novel family of such…

数值分析 · 数学 2019-09-04 Jason Edward Hicken , Jared Crean

Hydrodynamics provides a universal description of the emergent collective dynamics of vastly different many-body systems, based solely on their symmetries and conservation laws. Here we harness this universality, encoded in the…

统计力学 · 物理学 2025-12-16 P. I. Hurtado , J. J. del Pozo , P. L. Garrido

We study the Boltzmann equation with external forces, not necessarily deriving from a potential, in the incompressible Navier-Stokes perturbative regime. On the torus, we establish local-in-time, for any time, Cauchy theories that are…

数学物理 · 物理学 2023-02-08 Marc Briant , Arnaud Debussche , Julien Vovelle

We present a new hydrodynamic model consisting of the pressureless Euler equations and the isentropic compressible Navier-Stokes equations where the coupling of two systems is through the drag force. This coupled system can be derived, in…

偏微分方程分析 · 数学 2016-04-19 Young-Pil Choi , Bongsuk Kwon

Classical continuum-based liquid vapour phase-change models typically assume continuity of temperature at phase interfaces along with a relation which describes the rate of evaporation at the interface (Hertz-Knudsen-Schrage, for example).…

流体动力学 · 物理学 2021-06-10 Anirudh S Rana , Sonu Saini , Suman Chakraborty , Duncan A Lockerby , James E Sprittles

We analyze the representation of viscous stresses in the one-fluid formulation of the two-phase Navier-Stokes equations, the model on which all computational approaches making use of a fixed mesh to discretize the flow field are grounded.…

流体动力学 · 物理学 2025-06-06 Jacques Magnaudet , Hadrien Bruhier , Samuel Mer , Thomas Bonometti

The continuum equations of fluid mechanics are rederived with the intention of keeping certain mechanical and thermodynamic concepts separate. A new "mechanical" mass density is created to be used in computing inertial quantities, whereas…

流体动力学 · 物理学 2017-01-25 Melissa Morris

This is a survey highlighting several recent results concerning well/ill posedness of the Euler system of gas dynamics. Solutions of the system are identified as limits of consistent approximations generated either by physically more…

偏微分方程分析 · 数学 2026-04-01 Eduard Feireisl

In models of oceanic and atmospheric flows, thermodynamic functions and conservative variables may be defined up to a certain degree of arbitrariness, in the sense that, for a given set of observable quantities such as pressure and…

流体动力学 · 物理学 2024-11-19 Thomas Dubos

The article is devoted to the mathematical analysis of a fluid-structure interaction system where the fluid is compressible and heat conducting and where the structure is deformable and located on a part of the boundary of the fluid domain.…

偏微分方程分析 · 数学 2021-05-26 Debayan Maity , Takéo Takahashi

In this article, a suite of physically inconsistent properties of the Navier-Stokes equations, associated with the lack of mass diffusion and the definition of velocity, are presented. We show that these inconsistencies are consequences of…

流体动力学 · 物理学 2018-01-09 Magnus Svärd

We study the full Navier--Stokes--Fourier system governing the motion of a general viscous, heat-conducting, and compressible fluid subject to stochastic perturbation. Stochastic effects are implemented through (i) random initial data, (ii)…

偏微分方程分析 · 数学 2017-10-31 Dominic Breit , Eduard Feireisl