Relativistic hydrodynamics of cosmological sheets

Details Relativistic hydrodynamics of cosmological sheets Relativistic hydrodynamics of cosmological sheets

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999phrvd..60f4011a&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 60, Issue 6, 15 September 1999, id. 064011

Physics

Fluid Dynamics

2

Numerical Relativity, Relativistic Fluid Dynamics, Hydrodynamics

Scientific paper

We have extended previous numerical calculations of Newtonian cosmological sheets to include self-consistent interactions with the background metric by solving the complete Einstein field equations together with the relativistic perfect fluid hydrodynamics equations. The initial data are parametrized and constructed using the gauge invariant perturbation formalism to specify the free conformal variables for the constraints. Numerical evolutions of initially horizon scale fluctuations are compared with results from perturbation theory and the Zel'dovich solution for a range of gravitational field strengths, and we discuss the nonlinear hydrodynamic, optical, and geometric characteristics of the sheet structures.

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