General numerical fluid dynamics algorithm for astrophysical applications

Details General numerical fluid dynamics algorithm for astrophysical applications General numerical fluid dynamics algorithm for astrophysical applications

Oct 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975gnfd.book.....r&link_type=abstract

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Astronomy and Astrophysics

Astrophysics

1

Astrophysics, Fluid Dynamics, Stellar Evolution, Algorithms, Computer Programs, Difference Equations, Finite Difference Theory, Gravitational Collapse, Mathematical Models, Protostars

Scientific paper

Finite difference simulation of fluid flows under astrophysical conditions is often complicated by factors such as complex gas physics, the occurence of dynamics at widely differing length scales, and the necessity of using implicit difference equations. This report describes a simple, general, and efficient algorithm for solving one-dimensional, spherically symmetric problems using a variation of the ICED-ALE method. A computer code named VEGA has been written based on this algorithm, and the early stages of the collapse of a one-solar mass protostellar cloud are presented as a sample solution.

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