Homogeneous selfgravitating flows
Abstract
Numerical simulations of selfgravitating gases are necessary to study some fundamental nonlinear 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 onedimensional flows at low resolution in a static or an expanding Universe.
 Publication:

Astronomy and Astrophysics
 Pub Date:
 May 1988
 Bibcode:
 1988A&A...196....1A
 Keywords:

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