中文
相关论文

相关论文: Formulating Viscous Hydrodynamics for Large Veloci…

200 篇论文

This paper advances the stochastic regularity theory for the Navier-Stokes equations by introducing a variable-intensity noise model within the Sobolev and Besov spaces. Traditional models usually assume constant-intensity noise, but many…

流体动力学 · 物理学 2024-11-08 Rômulo Damasclin Chaves dos Santos

We show that measurements of the rapidity dependence of transverse momentum correlations can be used to determine the characteristic time $\tau_{\pi}$ that dictates the rate of isotropization of the stress energy tensor, as well as the…

核理论 · 物理学 2017-05-24 Christopher Zin , Sean Gavin , George Moschelli

We show that relativistic hydrodynamics in Minkowski space-time has intrinsic ambiguity in second order viscosity parameters in the Landau-Lifshitz frame. This stems from the possibility of improvements of energy-momentum tensor. There…

高能物理 - 理论 · 物理学 2012-10-08 Yu Nakayama

We construct a new relativistic viscous hydrodynamics code optimized in the Milne coordinates. We split the conservation equations into an ideal part and a viscous part, using the Strang spitting method. In the code a Riemann solver based…

核理论 · 物理学 2017-07-25 Kazuhisa Okamoto , Chiho Nonaka

We give a pedagogical review of relativistic hydrodynamics relevant to relativistic heavy ion collisions. Topics discussed include linear response theory derivation of 2nd order viscous hydrodynamics including the Kubo formulas, kinetic…

高能物理 - 唯象学 · 物理学 2015-07-22 Sangyong Jeon , Ulrich Heinz

In this manuscript, we extend Constantin-Iyer's Lagrangian formulation of Navier-Stokes Equation to a wider class of hydrodynamic models. Moreover, we prove that such Lagrangian formulation is naturally derived from a stochastic…

偏微分方程分析 · 数学 2025-12-02 Anna Mazzucato , Anping Pan

We develop a numerical hydrodynamics code using a pseudo-Newtonian formulation that uses the weak field approximation for the geometry, and a generalized source term for the Poisson equation that takes into account relativistic effects. The…

高能天体物理现象 · 物理学 2015-06-04 Jinho Kim , Hee Il Kim , Matthew William Choptuik , Hyung Mok Lee

In this note, we show the existence of regular solutions to the stationary version of the Navier-Stokes system for compressible fluids with a density dependent viscosity, known as the shallow water equations. For arbitrary large forcing we…

偏微分方程分析 · 数学 2016-07-15 Šimon Axmann , Piotr B. Mucha , Milan Pokorný

The derivation of shallow water models from Navier-Stokes equations is revisited yielding a class of two-layer shallow water models.An improved velocity profile is proposed, based on the superposition of an ideal fluid and a viscous layer…

偏微分方程分析 · 数学 2018-06-11 François James , Pierre-Yves Lagrée , Hoang-Minh Le , Mathilde Legrand

This paper presents a streamfunction-vorticity formulation for the Navier--Stokes and Euler equations on general surfaces. Notably, this includes non-simply connected surfaces, on which the harmonic components of the velocity field play a…

数值分析 · 数学 2025-12-25 Tim Brüers , Christoph Lehrenfeld , Max Wardetzky

The random forced Navier-Stokes equation can be obtained as a variational problem of a proper action. In virtue of incompressibility, the integration over transverse components of the fields allows to cast the action in the form of a large…

流体动力学 · 物理学 2007-05-23 R. Collina , R. Livi , A. Mazzino

We consider the Navier-Stokes system with Oseen and rotational terms describing the stationary flow of a viscous incompressible fluid around a rigid body moving at a constant velocity and rotating at a constant angular velocity. In a…

偏微分方程分析 · 数学 2015-11-13 Paul Deuring , Stanislav Kracmar , Sarka Necasova

Hydrodynamics is known to describe matter created in high energy heavy ion collisions well. Large deposition of energy by passing jets should create not only the sound waves, already discussed in literature, but also the shocks waves of…

高能物理 - 唯象学 · 物理学 2013-05-30 Edward Shuryak

We present the derivation of second-order relativistic viscous hydrodynamics from an effective Boltzmann equation for a system consisting of quasiparticles of a single species. We consider temperature-dependent masses of the quasiparticles…

核理论 · 物理学 2017-03-15 Leonardo Tinti , Amaresh Jaiswal , Radoslaw Ryblewski

A Skeleton-stabilized ImmersoGeometric Analysis technique is proposed for incompressible viscous flow problems with moderate Reynolds number. The proposed formulation fits within the framework of the finite cell method, where essential…

In this article, we consider the frame hydrodynamics of biaxial nematic phases, a coupled system between the evolution of the orthonormal frame and the Navier--Stokes equation, which is derived from a molecular-theory-based dynamical tensor…

偏微分方程分析 · 数学 2025-08-11 Minjiang Feng , Sirui Li , Qi Zeng

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

A new approach is described to help improve the foundations of relativistic viscous fluid dynamics and its coupling to general relativity. Focusing on neutral conformal fluids constructed solely in terms of hydrodynamic variables, we derive…

广义相对论与量子宇宙学 · 物理学 2018-12-05 Fabio S. Bemfica , Marcelo M. Disconzi , Jorge Noronha

Shockwaves provide a useful and rewarding route to the nonequilibrium properties of simple fluids far from equilibrium. For simplicity, we study a strong shockwave in a dense two-dimensional fluid. Here, our study of nonlinear transport…

流体动力学 · 物理学 2020-03-24 Wm. G. Hoover , Carol G. Hoover

The Quark Gluon Plasma produced in heavy-ion collisions has three relevant conserved charges: baryon number (B), strangeness (S), and electric charge (Q). Here we derive the Israel-Stewart framework for BSQ diffusion coupled to shear and…

高能物理 - 理论 · 物理学 2022-09-27 Dekrayat Almaalol , Travis Dore , Jacquelyn Noronha-Hostler