New developments in relativistic dissipative fluid dynamics
New developments in relativistic dissipative fluid dynamics
复制标题
相对论耗散流体动力学的新进展
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
A. Muronga
中科院分区：
文献类型：
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作者：
A. Muronga
最近在相对论重离子对撞机（RHIC）上产生的完美流体的概念已经被许多实验学家和理论家所接受。然而，这一概念的许多证据都是基于非粘性流体动力学或小剪切粘度与熵密度比描述一些实验观测值的成功。粘性流体动力学的发展从（0+1）维（Bjorken标度解）到（1+1）维（Bjorken +横向流）到（2+1）维（椭圆流）和目前的（3+1）维。关于相对论性粘性流体动力学方程的允许形式以及新的附加项或高阶项对时空演化和实验观测量的影响，仍然存在一些形式上的问题。首先简要介绍相对论流体动力学的基础知识，我将讨论我们目前的知识相对论流体动力学理论中存在的耗散通量。
The recent notion of the perfect fluid created at the relativistic heavy ion collider (RHIC) has been embraced by many experimentalists and theorists alike. However, much of the evidence to this notion has been based on the success of describing some experimental observables by non-viscous hydrodynamics or by small shear viscosity to entropy density ratio. Developments on viscous hydrodynamics evolved from (0+1) dimensions (Bjorken scaling solution) over (1+1) dimensions (Bjorken + transverse flow) to (2+1) dimensions (elliptic flow) and currently (3+1) dimensions. There still exist some formal issues concerning the allowed form of the relativistic viscous hydrodynamic equations and what effects the new additional or higher order terms will have on the spacetime evolution and the experimental observables. Starting with a brief introduction of the basics of relativsitic fluid dynamics, I will discuss our current knowledge of relativistic theory of fluid dynamics in the presence of dissipative fluxes.