理想流体的拉格朗日量

arXiv: General Relativity and Quantum Cosmology Pub Date : 2020-11-09 DOI:10.1142/s0219887821500596

S. Mendoza, S. Silva

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引用次数: 7

摘要

我们证明了理想流体的物质拉格朗日量等于流体的总能量密度(取决于它的定义和所选择的度量符号)，即静止能量密度加上内部能量密度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The matter Lagrangian of an ideal fluid

We show that the matter Lagrangian of an ideal fluid equals (up to a sign -depending on its definition and on the chosen signature of the metric) the total energy density of the fluid, i.e. rest energy density plus internal energy density.

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arXiv: General Relativity and Quantum Cosmology

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