中文
相关论文

相关论文: Incompressible Navier-Stokes Equations from Einste…

200 篇论文

An equation for a viscous incompressible fluid on a spheroidal surface which is dual to the perturbation around the near-near horizon extreme Kerr (n-NHEK) black hole is derived. It is also shown that an expansion scalar $\theta$ of a…

高能物理 - 理论 · 物理学 2016-02-23 Ippei Fujisawa , Ryuichi Nakayama

We deal with the incompressible Navier-Stokes equations, in two and three dimensions, when some vortex patches are prescribed as initial data i.e. when there is an internal boundary across which the vorticity is discontinuous. We show…

偏微分方程分析 · 数学 2008-12-12 Franck Sueur

We present the first generalization of Navier-Stokes theory to relativity that satisfies all of the following properties: (a) the system coupled to Einstein's equations is causal and strongly hyperbolic; (b) equilibrium states are stable;…

广义相对论与量子宇宙学 · 物理学 2022-03-02 Fabio S. Bemfica , Marcelo M. Disconzi , Jorge Noronha

The viscosity of the QGP is a presently hotly debated subject. Since its computation from first principles is difficult, it is desirable to try to extract it from experimental data. Viscous hydrodynamics provides a tool that can attack this…

核理论 · 物理学 2009-08-26 Huichao Song

Out-of-equilibrium effects may play an important role in the dynamics of neutron star mergers and in heavy-ion collisions. Bemfica, Disconzi, Noronha and Kovtun (BDNK) recently derived a causal, locally well-posed, and modally stable…

广义相对论与量子宇宙学 · 物理学 2023-07-05 Abhishek Hegade K R , Justin L. Ripley , Nicolás Yunes

In the given paper, we confront three finite difference approximations to the Navier--Stokes equations for the two-dimensional viscous incomressible fluid flows. Two of these approximations were generated by the computer algebra assisted…

数值分析 · 数学 2015-08-28 P. Amodio , Yu. Blinkov , V. Gerdt , R. La Scala

We are concerned with the isentropic compressible Navier-Stokes system in the two-dimensional torus, with rough data and vacuum : the initial velocity is in the Sobolev space H^1 and the initial density is only bounded and nonnegative.…

偏微分方程分析 · 数学 2023-11-03 Raphaël Danchin , Shan Wang

We consider dense rapid shear flow of inelastically colliding hard disks. Navier-Stokes granular hydrodynamics is applied accounting for the recent finding \cite{Luding,Khain} that shear viscosity diverges at a lower density than the rest…

软凝聚态物质 · 物理学 2009-11-13 Evgeniy Khain

We discuss the applicability of a unified hyperbolic model for continuum fluid and solid mechanics to modeling non-Newtonian flows and in particular to modeling the stress-driven solid-fluid transformations in flows of viscoplastic fluids,…

We investigate the barotropic compressible Navier-Stokes equations with the Navier-slip boundary conditions in a general two-dimensional bounded simply connected domain. For initial density that is allowed to vanish, we establish the global…

偏微分方程分析 · 数学 2025-07-04 Qinghao Lei , Chengfeng Xiong

We prove the existence of the weak solutions to the compressible Navier--Stokes system with barotropic pressure $p(\varrho)=\varrho^\gamma$ for $\gamma\geq 9/5$ in three space dimension. The novelty of the paper is the approximation scheme…

偏微分方程分析 · 数学 2023-01-27 Nilasis Chaudhuri , Piotr B. Mucha , Ewelina Zatorska

The Navier-Stokes-Voigt (NSV) model of viscoelastic incompressible fluid has been recently proposed as a regularization of the 3D Navier-Stokes equations for the purpose of direct numerical simulations. In this work we investigate its…

流体动力学 · 物理学 2009-01-06 Boris Levant , Fábio Ramos , Edriss S. Titi

We consider the motion of incompressible viscous fluids bounded above by a free surface and below by a solid surface in the $N$-dimensional Euclidean space for $N\geq 2$ when the gravity is not taken into account. The aim of this paper is…

偏微分方程分析 · 数学 2017-07-28 Hirokazu Saito

In ref. \cite{1406.7222}, we reported a construction of all order linearized fluid dynamics with strongly coupled $\mathcal{N}=4$ super-Yang-Mills theory as underlying microscopic description. The linearized fluid/gravity correspondence…

高能物理 - 理论 · 物理学 2015-06-22 Yanyan Bu , Michael Lublinsky

In this paper we derive a new energy identity for the three-dimensional incompressible Navier-Stokes equations by a special structure of helicity. The new energy functional is critical with respect to the natural scalings of the…

偏微分方程分析 · 数学 2015-10-28 Zhen Lei , Fang-Hua Lin , Yi Zhou

We consider a model for the evolution of a mixture of two incompressible and partially immiscible Newtonian fluids in two dimensional bounded domain. More precisely, we address the well-known model H consisting of the Navier-Stokes equation…

偏微分方程分析 · 数学 2013-04-04 Stefano Bosia , Stefania Gatti

For two dimensional inhomogeneous Navier-Stokes of incompressible flows, with the assumption that the viscosity depends on the density but with a positive lower bound, using a partial regularity approach, in particular some enhanced decay…

偏微分方程分析 · 数学 2016-10-11 Ning Jiang , Yilong Luo

The Navier-Stokes Hamiltonian is derived from first principles. Its Hamilton equations are shown to be equivalent to the continuity, Navier-Stokes, and energy conservation equations of a compressible viscous fluid. The derivations of the…

流体动力学 · 物理学 2015-07-08 Billy D. Jones

We study the three-dimensional Navier--Stokes equations of rotating incompressible viscous fluids with periodic boundary conditions. The asymptotic expansions, as time goes to infinity, are derived in all Gevrey spaces for any Leray-Hopf…

偏微分方程分析 · 数学 2020-07-02 Luan T. Hoang , Edriss S. Titi

We present an algorithm for systematically reconstructing a solution of the (d+2)-dimensional vacuum Einstein equations from a (d+1)-dimensional fluid, extending the non-relativistic hydrodynamic expansion of Bredberg et al in…

高能物理 - 理论 · 物理学 2012-04-04 Geoffrey Compère , Paul McFadden , Kostas Skenderis , Marika Taylor