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相关论文: Linearized fluid/gravity correspondence: from shea…

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Relativistic hydrodynamics dual to Einstein-Gauss-Bonnet gravity in asymptotic $\textrm{AdS}_5$ space is under study. To linear order in the amplitude of the fluid velocity and temperature, we derive the fluid's stress-energy tensor via an…

高能物理 - 理论 · 物理学 2015-06-16 Yanyan Bu , Michael Lublinsky , Amir Sharon

An exact derivation of relativistic hydrodynamics from an underlying microscopic theory has been shown to be an all-order theory. From the relativistic transport equation of kinetic theory, the full expressions of hydrodynamic viscous…

核理论 · 物理学 2024-12-03 Sukanya Mitra

We present a construction of a (d+2)-dimensional Ricci-flat metric corresponding to a (d+1)-dimensional relativistic fluid, representing holographically the hydrodynamic regime of a (putative) dual theory. We show how to obtain the metric…

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

In this paper, we investigate the fluid/gravity correspondence in the framework of massive Einstein gravity. Treating the gravitational mass terms as an effective energy-momentum tensor and utilizing the Petrov-like boundary condition on a…

高能物理 - 理论 · 物理学 2016-11-18 Wen-Jian Pan , Yong-Chang Huang

The fluid/gravity correspondence relates solutions of the incompressible Navier-Stokes equation to metrics which solve the Einstein equations. In this paper we extend this duality to a new magnetohydrodynamics/gravity correspondence, which…

高能物理 - 理论 · 物理学 2013-10-17 Vyacheslav Lysov

The problem of gravitational fluctuations confined inside a finite cutoff at radius $r=r_c$ outside the horizon in a general class of black hole geometries is considered. Consistent boundary conditions at both the cutoff surface and the…

高能物理 - 理论 · 物理学 2011-09-30 Irene Bredberg , Cynthia Keeler , Vyacheslav Lysov , Andrew Strominger

We consider the system of partial differential equations governing two-dimensional flows of a robust class of viscoelastic rate-type fluids with stress diffusion, involving a general objective derivative. The studied system generalizes the…

偏微分方程分析 · 数学 2022-06-08 Miroslav Bulíček , Josef Málek , Casey Rodriguez

Hydrodynamics is nowadays understood as an effective field theory that describes the dynamics of the long-wavelength and slow-time fluctuations of an underlying microscopic theory. In this work we extend the relativistic hydrodynamics to…

高能物理 - 理论 · 物理学 2020-05-27 Saulo M. Diles , Luis A. H. Mamani , Alex S. Miranda , Vilson T. Zanchin

We have examined holographic renormalization group($RG$) flows of the shear viscosities in anisotropic holographic superfluids via their gravity duals, Einstein-SU(2) Yang-Mills system. In anisotropic phase, below the critical temperature…

高能物理 - 理论 · 物理学 2012-06-27 Jae-Hyuk Oh

We explore the potential of a formulation of the Navier-Stokes equations incorporating a random description of the small-scale velocity component. This model, established from a version of the Reynolds transport theorem adapted to a…

流体动力学 · 物理学 2016-11-11 S. Kadri Harouna , E. Mémin

Over the past few decades, a host of theoretical evidence have surfaced that suggest a connection between theories of gravity and Navier-Stokes (NS) equation of fluid dynamics. It emerges out that gravity theory can be treated as some kind…

高能物理 - 理论 · 物理学 2019-01-08 Shounak De , Bibhas Ranjan Majhi

Using the recently developed ``Maximum Entropy'' (or ``least biased'') distribution function to truncate the moment hierarchy arising from kinetic theory, we formulate a far-from-equilibrium macroscopic theory that provides the possibility…

高能物理 - 唯象学 · 物理学 2023-08-03 Chandrodoy Chattopadhyay , Ulrich Heinz , Thomas Schaefer

This paper addresses the problem of obtaining low-order models of fluid flows for the purpose of designing robust feedback controllers. This is challenging since whilst many flows are governed by a set of nonlinear, partial…

流体动力学 · 物理学 2017-10-13 Bryn Ll. Jones , Peter H. Heins , Eric C. Kerrigan , Jonathan F. Morrison , Ati S. Sharma

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

We study the dynamics of the two dimensional Navier Stokes equations linearized around a strictly monotonic shear flow on $\mathbb{T}\times\mathbb{R}$. The main task is to understand the associated Rayleigh and Orr-Sommerfeld equations,…

偏微分方程分析 · 数学 2023-05-24 Hao Jia

A rapid predictive tool based on the linearised Reynolds-averaged Navier-Stokes equations is proposed in this work to investigate secondary currents generated by streamwise-independent surface topography modulations in turbulent channel…

流体动力学 · 物理学 2022-07-13 Gerardo Zampino , Davide Lasagna , Bharathram Ganapathisubramani

To capture the dynamics of macroscopic non-relativistic fluids consisting of very many atoms, it is typically sufficient to truncate the gradient expansion at order zero, leading to ideal fluid dynamics, or at order one, leading to the…

量子气体 · 物理学 2024-08-13 Lars H. Heyen , Giuliano Giacalone , Stefan Floerchinger

A model of fully developed turbulence of a compressible fluid is briefly reviewed. It is assumed that fluid dynamics is governed by a stochastic version of Navier-Stokes equation. We show how corresponding field theoretic-model can be…

统计力学 · 物理学 2018-10-09 M. Hnatič , N. M. Gulitskiy , T. Lučivjanský , L. Mižišin , V. Škultéty

The fluid-gravity correspondence is a duality between anti-de Sitter Einstein gravity and a relativistic fluid living at the conformal boundary. We show that one can accommodate the causal first-order viscous hydrodynamics recently…

高能物理 - 理论 · 物理学 2024-01-18 Luca Ciambelli , Luis Lehner

A Lagrangian relativistic approach to the non--linear dynamics of cosmological perturbations of an irrotational collisionless fluid is considered. Solutions are given at second order in perturbation theory for the relevant fluid and…

天体物理学 · 物理学 2015-06-24 S. Matarrese , O. Pantano , D. Saez