Flux-variational formulation of relativistic perfect fluids

JOURNAL OF GEOMETRY AND PHYSICS

卷:147

Article

Alonso-Blanco, R. J.¹  Munoz-Diaz, J.¹ 

[1] Univ Salamanca, Dept Matemat, Plaza Merced 1-4, E-37008 Salamanca, Spain

关键词: Variations;    Relativistic fluid;    Flux;    Continuity equation;   

DOI  :  10.1016/j.geomphys.2019.103525

来源: Elsevier

【 摘 要 】

We give a variational formulation of perfect fluids on a general pseudoriemannian manifold by variating tangent fields according the flux produced by them. In fact, in this approach the key point is to consider those variations that preserve the canonical structure of the bundle of fluxes (see below). As a result, Euler and continuity equations are obtained quite directly. (C) 2019 Elsevier B.V. All rights reserved.

【 授权许可】

Free