Relativistic Fluid Mechanics
A. H. Taub · Annual Review of Fluid Mechanics · 1978
fluid mechanics may be characterized as a theory that describes the state of a fluid by means of five functions of at most four independent variables. The latter variables are of two kinds: three variables determining a point in a three dimensional Euclidean space and a fourth one labeling absolute time on some sta ndard universal clock. The five functions, the dependent variables of the theory, are also of two kinds: three of them are kinematic variables, vi (i = 1,2,3), the