Aceleração e fluxos potenciais em relatividade geral : resultados analiticos e numericos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2002

RESUMO

Analytical and numerical solutions for the integral curves of the velocity field (streamlines) of a steady-state flow of an ideal fluid with p = ( g -1) equation of state are presented. When g = 2, the streamlines associated with an accelerate black hole and a rigid sphere are studied in some detail, as well as, the velocity fields of a black hole and a rigid sphere in an external dipolar field (constant acceleration field). In the latter case the dipole field may be produced by an axially symmetric halo or shell of matter. For each case the uid density is studied using contour lines. We found that the presence of acceleration is detected by these contour lines. For 1

ASSUNTO(S)

cosmologia relatividade geral (fisica) equações diferenciais - soluções numericas fluxo laminar

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