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相关论文: Forced Fluid Dynamics from Gravity

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Empirical theories of Dark Matter like MOND gravity and of Dark Energy like f(R) gravity were motivated by astronomical data. But could these theories be branches rooted from a more general hence natural framework? Here we propose the…

天体物理学 · 物理学 2015-05-13 HongSheng Zhao , Baojiu Li

Using the AdS/CFT correspondence, we study the hydrodynamics with conserved current from the dual Maxwell-Gauss-Bonnet gravity. After constructing the perturbative solution to the first order based on the boosted black brane solution in the…

高能物理 - 理论 · 物理学 2011-07-08 Ya-Peng Hu , Peng Sun , Jian-Hui Zhang

Certain unresolved ambiguities surround pressure determinations for incompressible flows, both Navier-Stokes and magnetohydrodynamic. For uniform-density fluids with standard Newtonian viscous terms, taking the divergence of the equation of…

流体动力学 · 物理学 2015-06-26 Brian T. Kress , David C. Montgomery

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

Motivated by the gauge/gravity duality, we introduce a numerical scheme based on generalized harmonic evolution to solve the Einstein field equations on asymptotically anti-de Sitter (AdS) spacetimes. We work in global AdS5, which can be…

高能物理 - 理论 · 物理学 2013-05-30 Hans Bantilan , Frans Pretorius , Steven S. Gubser

In these pedagogical lectures, we present the techniques of the AdS/CFT correspondence which can be applied to the study of real time dynamics of a strongly coupled plasma system. These methods are based on solving gravitational Einstein's…

高能物理 - 理论 · 物理学 2015-05-18 Romuald A. Janik

The dynamical equation of the boundary vorticity has been obtained, which shows that the viscosity at a solid wall is doubled as if the fluid became more viscous at the boundary. For certain viscous flows the boundary vorticity can be…

流体动力学 · 物理学 2023-08-28 V. Cherepanov , J. Liu , Z. Qian

We study second order relativistic viscous hydrodynamics in 4-dimensional conformal field theories. We derive Kubo-type relations for second order hydrodynamic coefficients in terms of 3-point stress tensor retarded correlators. For N=4…

高能物理 - 理论 · 物理学 2015-05-28 Peter Arnold , Diana Vaman , Chaolun Wu , Wei Xiao

Planar black holes in AdS have long-lived quasinormal modes which capture the physics of charge and momentum diffusion in the dual field theory. How should we characterize the effective dynamics of a probe system coupled to the conserved…

高能物理 - 理论 · 物理学 2021-06-02 Jewel K. Ghosh , R. Loganayagam , Siddharth G. Prabhu , Mukund Rangamani , Akhil Sivakumar , V. Vishal

In the AdS$_3$/CFT$_2$ framework, the Euclidean BTZ black hole corresponds to the dominant high-temperature phase of its dual field theory. We initially employ perturbative methods to solve the Einstein equations as boundary value problems,…

高能物理 - 理论 · 物理学 2024-06-26 Song He , Yi Li , Yun-Ze Li , Yunda Zhang

Using fluid/gravity correspondence, we determine the (linearized) stress energy tensor of $\mathcal{N}=4$ super-Yang-Mills theory at strong coupling with all orders in derivatives of fluid velocity included. We find that the dissipative…

高能物理 - 理论 · 物理学 2014-11-04 Yanyan Bu , Michael Lublinsky

We show that a Galilean invariant version of fluid dynamics can be derived by the methods of statistical dynamics using Maxwell's balance equations. The basic equation is non-local, and might replace Boltzmann's equation if the latter turns…

数学物理 · 物理学 2007-05-23 R. F. Streater

We present the analytical solution for the two-dimensional velocity and density fields within an approximation for laminar stratified inclined duct (SID) flows where diffusion dominates over inertia in the along-channel momentum equation…

流体动力学 · 物理学 2022-09-15 Matias Duran-Matute , Steven J. Kaptein , Herman J. H. Clercx

We derive the linear acoustic and Stokes-Fourier equations as the limiting dynamics of a system of N hard spheres of diameter $\epsilon$ in two space dimensions, when N $\rightarrow$ $\infty$, $\epsilon$ $\rightarrow$ 0, N $\epsilon$ =…

偏微分方程分析 · 数学 2016-10-21 Thierry Bodineau , Isabelle Gallagher , Laure Saint-Raymond

We have found an infinite dimensional manifold of exact solutions of the Navier-Stokes loop equation for the Wilson loop in decaying Turbulence in arbitrary dimension $d >2$. This solution family is equivalent to a fractal curve in complex…

流体动力学 · 物理学 2023-10-26 Alexander Migdal

We solved analytically viscous two-dimensional (2D) fluid equations for accretion and outflows in spherical polar coordinates ($r, \theta, \phi$) and obtained explicitly flow variables in $r-$ and $\theta -$directions around black holes…

高能天体物理现象 · 物理学 2018-07-04 Rajiv Kumar , Wei-Min Gu

A family of wave solutions to the full Einstein equations in AdS_5 geometry is derived. These background solutions give by duality the response of N=4 SYM at strong coupling to an arbitrary distribution of fast moving external sources for…

高能物理 - 理论 · 物理学 2010-03-02 Guillaume Beuf

In this work, we extend the study in \href{https://link.springer.com/article/10.1007/JHEP11(2022)013}{JHEP11(2022)013} incorporating the AdS/CFT duality to establish a relationship between the local temperatures (Tolman temperatures) of a…

高能物理 - 理论 · 物理学 2024-11-07 Souvik Paul , Sunandan Gangopadhyay , Ashis Saha

We consider the hydrodynamic limit in the macroscopic regime of the coupled system of stochastic differential equations, $ d\lambda_t^i=\frac{1}{\sqrt{N}} dW_t^i - V'(\lambda_t^i) dt+ \frac{\beta}{2N} \sum_{j\not=i}…

概率论 · 数学 2019-03-05 Jeremie Unterberger

We propose a Navier-Stokes-driven analysis of the mean and fluctuating wall shear stress (WSS) applied to turbulent channel flow data from direct numerical simulations at friction Reynolds numbers up to $Re_\tau\approx 2000$. Starting from…

流体动力学 · 物理学 2026-02-05 Le Yin , Yongyun Hwang , John Christos Vassilicos