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Hydrodynamic model simulations of Au-Au collisions at RHIC have indicated recently, that with improved simulations in the coming years, it may be feasible to quantify the viscosity of the matter produced in heavy ion collisions. To this…

核理论 · 物理学 2008-11-26 Rudolf Baier , Paul Romatschke , Urs Achim Wiedemann

I present the junction conditions for F(R) theories of gravity and their implications: the generalized Israel conditions and equations. These junction conditions are necessary to construct global models of stars, galaxies, etc., where a…

广义相对论与量子宇宙学 · 物理学 2013-09-11 José M. M. Senovilla

We construct the theory of dissipative hydrodynamics of uncharged fluids living on embedded space-time surfaces to first order in a derivative expansion in the case of codimension-1 surfaces (including fluid membranes) and the theory of…

高能物理 - 理论 · 物理学 2014-12-23 Jay Armas

We discuss the junction conditions in the context of the Randall-Sundrum model with the Gauss-Bonnet interaction. We consider the $Z_2$ symmetric model where the brane is embedded in an $AdS_5$ bulk, as well as a model without $Z_2$…

高能物理 - 理论 · 物理学 2007-05-23 Tomas Dolezel

This paper investigates the Knudsen layer equation in half-space, arising from the hydrodynamic limit of the Boltzmann equation to fluid dynamics. We consider the Maxwell reflection boundary condition with accommodation coefficient…

偏微分方程分析 · 数学 2025-01-16 Ling-Bing He , Ning Jiang , Yulong Wu

This paper concerns the dynamics of a layer of incompressible viscous fluid lying above a vertically oscillating rigid plane and with an upper boundary given by a free surface. We consider the problem with gravity and surface tension for…

偏微分方程分析 · 数学 2019-05-14 David Altizio , Ian Tice , Xinyu Wu , Taisuke Yasuda

We derive a boundary layer equation describing accumulation regions within a thin-film approximation framework where gravity and surface tension balance. As part of the analysis of this problem we investigate in detail and rigorously the…

偏微分方程分析 · 数学 2011-08-01 C. M. Cuesta , J. J. L. Velazquez

In this study,we investigate the characteristics of three-dimensional turbulent boundary layers influenced by transverse flow and pressure gradients. Our findings reveal that even without assuming an infinite sweep, a fully developed…

流体动力学 · 物理学 2024-07-23 Youcheng Xi , Bowen Yan , Guangwen Yang , Song Fu

This paper uses products of distributions to obtain new junction conditions for relativistic shocks. In general, the shock is accompanied by a surface layer, and the new conditions generalize both Taub's jump conditions for shocks, and…

综合物理 · 物理学 2011-07-22 C. K. Raju

Based on the previous paper arXiv:1207.5309, we investigate the possibility to find out the bulk viscosity of dual fluid at the finite cutoff surface via gravity/fluid correspondence in Einstein-Maxwell gravity. We find that if we adopt new…

高能物理 - 理论 · 物理学 2014-04-15 Ya-Peng Hu , Yu Tian , Xiao-Ning Wu

This paper concerns the dynamics of two layers of compressible, barotropic, viscous fluid lying atop one another. The lower fluid is bounded below by a rigid bottom, and the upper fluid is bounded above by a trivial fluid of constant…

偏微分方程分析 · 数学 2016-04-20 Juhi Jang , Ian Tice , Yanjin Wang

Small perturbations of a black brane are interpreted as small deviations from thermodynamic equilibrium in a dual theory with the AdS/CFT correspondence. In this paper, we calculate hydrodynamics of the dual Yang-Mills theory in the gravity…

高能物理 - 理论 · 物理学 2009-12-15 Mitsutoshi Fujita

Motivated by the fluid/gravity correspondence, we consider the Penrose inequality in the framework of fluid dynamics. In general relativity, the Penrose inequality relates the mass and the entropy associated with a gravitational background.…

高能物理 - 理论 · 物理学 2011-03-18 Yaron Oz , Michael Rabinovich

For a thin shell, the intrinsic 3-pressure will be shown to be analogous to -A, where A is the classical surface tension: First, interior and exterior Schwarzschild solutions will be matched together such that the surface layer generated at…

广义相对论与量子宇宙学 · 物理学 2008-11-26 H. -J. Schmidt

We study the dual fluid on a finite cutoff surface outside the black brane horizon in the third order Lovelock gravity. Using nonrelativistic long-wavelength expansion, we obtain the incompressible Navier-Stokes equations of dual fluid with…

高能物理 - 理论 · 物理学 2013-04-15 De-Cheng Zou , Shao-Jun Zhang , Bin Wang

We consider a system consisting of $5$ dimensional gravity with a negative cosmological constant coupled to a massless scalar, the dilaton. We construct a black brane solution which arises when the dilaton satisfies linearly varying…

高能物理 - 理论 · 物理学 2015-01-14 Sachin Jain , Nilay Kundu , Kallol Sen , Aninda Sinha , Sandip P. Trivedi

We study the waves at the interface between two thin horizontal layers of immiscible liquids subject to high-frequency tangential vibrations. Nonlinear governing equations are derived for the cases of two- and three-dimensional flows and…

流体动力学 · 物理学 2018-10-30 Anastasiya V. Dolmatova , Denis S. Goldobin , Tatyana P. Lyubimova

We generalize recent work to construct a map from the conformal Navier Stokes equations with holographically determined transport coefficients, in d spacetime dimensions, to the set of asymptotically locally AdS_{d+1} long wavelength…

高能物理 - 理论 · 物理学 2009-01-09 Sayantani Bhattacharyya , R. Loganayagam , Ipsita Mandal , Shiraz Minwalla , Ankit Sharma

We propose, in the framework of the fluid/gravity correspondence, a definition for a local horizon entropy current for higher-curvature gravitational theories. The current is well-defined to first order in fluid gradients for general…

高能物理 - 理论 · 物理学 2013-10-09 Shira Chapman , Yasha Neiman , Yaron Oz

We determine the surface tension of aqueous electrolyte solutions in contact with non-polar dielectric media using a thermomechanical approach, which involves deriving the stress tensor from the thermodynamic potential of an inhomogeneous…

软凝聚态物质 · 物理学 2024-04-18 Yury A. Budkov , Nikolai N. Kalikin , Petr E. Brandyshev