Statistics – Computation
Scientific paper
Mar 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983entr........38b&link_type=abstract
Energy and Technology Review, March 1983, p. 38-47.
Statistics
Computation
Astronomical Models, Astrophysics, Computational Grids, Computer Programs, Finite Difference Theory, Hydrodynamics, Documentation, Modularity, Programming Languages, Run Time (Computers)
Scientific paper
Some of the considerations involved in developing a large computer program for finite-difference mesh calculations, the manner in which the program treats discontinuous velocities and how it moves mass, energy, and momentum from zone to zone as the mesh remaps, and finally how these features are useful in modeling some specific problems in astrophysics are discussed. Aspects of the program development are discussed, including modularity, the choice of Lagrangian vs. Eulerian meshes, the use of automatic mesh correction to reduce mesh correction labor, and the availability of documentation and service programs, are addressed . The code's use of velocity discontinuities and advection to treat hydrodynamic flows is described, and the code's application to a number of astrophysical problems is briefly considered.
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