Homogeneous self-gravitating flows

Details Homogeneous self-gravitating flows Homogeneous self-gravitating flows

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...196....1a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 196, no. 1-2, May 1988, p. 1-16.

Statistics

Computation

9

Computational Astrophysics, Galactic Evolution, Gas Dynamics, Gravitational Collapse, Hydrodynamic Equations, Star Formation, Cosmology, Galactic Clusters, Newtonian Fluids, One Dimensional Flow, Turbulent Flow

Scientific paper

Numerical simulations of self-gravitating gases are necessary to study some fundamental non-linear processes such as the formation of stars or large scale structures in the Universe. In the present work, the authors have chosen a hydrodynamical description which allows to follow the gas evolution from free fall to hydrostatic regimes. The first aim is to test the efficiency of spectral methods applied to this kind of flow. The authors treat some basic difficulties encountered in such computations, and present examples of one-dimensional flows at low resolution in a static or an expanding Universe.

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