Numerical approximation of systems modeling large structure formation in cosmology

Details Numerical approximation of systems modeling large structure formation in cosmology Numerical approximation of systems modeling large structure formation in cosmology

2009-05-04

arxiv.org/abs/0905.0230v1

Mathematics

Numerical Analysis

46 pages, 13 figures

Scientific paper

Numerical approximations of two classical fluid dynamics systems modelling large structure formation in cosmology are proposed. These systems model nonrelativistic and relativistic fluids submitted to self-gravitation in an expanding background. They are obtained by an adaptation of an extension of the Godunov method, using delta wave projections, which was first introduced in Le Roux & al. for the system of pressureless fluid dynamics and which adapts to various systems of fluid dynamics.

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