Statistics – Computation
Scientific paper
Nov 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...206..204k&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 206, no. 2, Nov. 1988, p. 204-218. Research supported by Siemens AG.
Statistics
Computation
42
Boundary Conditions, Computational Astrophysics, Hydrodynamic Equations, Radio Jets (Astronomy), Bow Waves, Computational Grids, Density Distribution, Flow Distribution, Mach Number, Shock Waves, Supersonic Flow
Scientific paper
A new type of flux-corrected-transport (FCT) algorithm is described. Test calculations show that the new algorithm is superior to earlier FCT-versions. The algorithm is used to investigate the influence of boundary conditions and grid resolution on the simulation of supersonic jet propagation. The authors find that the solution is sensitive to the upwind boundary condition even in late stages of the jet evolution. Furthermore it is demonstrated that a converged solution cannot be obtained with the grid resolution which has been assumed to be sufficient in other simulations. Limitations arising in any jet simulation when trying to compare the numerical results with observations are pointed out.
Koessl D.
Mueller Ewald
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