A numerical method for three-dimensional simulations of collapsing, isothermal, magnetic gas clouds

Details A numerical method for three-dimensional simulations of collapsing, isothermal, magnetic gas clouds A numerical method for three-dimensional simulations of collapsing, isothermal, magnetic gas clouds

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.216..883p&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 216, Oct. 15, 1985, p. 883-895.

Other

53

Gravitational Collapse, Interstellar Gas, Magnetic Clouds, Magnetohydrodynamics, Molecular Clouds, Equations Of Motion, Isothermal Processes, Magnetic Effects, Space Environment Simulation

Scientific paper

In this paper a numerical method for the investigation of collapsing gas clouds is described. The method is based on the particle method SPH (Smooth Particle Hydrodynamics). Different forms of the magnetic force terms are discussed and one form, that which conserves linear and angular momentum exactly, is shown to be unstable. A simple technique which removes the instability is described. The method is applied to Alfvén waves, shock waves, magnetic polytropes and to equilibrium models of isothermal gas clouds.

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