Relativistic viscous hydrodynamics order by order
Relativistic viscous hydrodynamics order by order
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相对论粘性流体动力学顺序
DOI：
10.1103/physrevc.92.044908
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发表时间：
2014-09
影响因子：
3.1
通讯作者：
Pu, Shi
中科院分区：
文献类型：
--
作者：
Gao, Jian-Hua;Pu, Shi
在本文中，我们提出了一种在导数展开中逐阶求解粘性流体动力学的方法。在这种方法中，零阶解只是理想流体力学的一种。所有其他高阶校正都满足相同的一阶偏微分方程，但具有不同的非齐次项。我们以 Bjorken 流为例来测试我们方法的有效性，并介绍如何处理我们形式主义中的初始条件和微扰演化问题。
In this paper, we propose a method of solving the viscous hydrodynamics order by order in a derivative expansion. In such a method, the zero-order solution is just one of the ideal hydrodynamics. All the other higher order corrections satisfy the same first-order partial differential equations but with different inhomogeneous terms. We take the Bjorken flow as an example to test the validity of our method and present how to deal with the problems about the initial condition and perturbation evolution in our formalism.