Statistics – Computation
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003dps....35.4708b&link_type=abstract
American Astronomical Society, DPS meeting #35, #47.08; Bulletin of the American Astronomical Society, Vol. 35, p.1012
Statistics
Computation
Scientific paper
We present the first results from our Cometary Atmosphere Simulation (CASIM) code that is presently under development to model the interaction of a cometary atmosphere with the solar wind.
The CASIM code is based on a real-time computational combination of two elements:
- A hydrodynamic element that solves in two dimensions the ideal MHD equations for ion and neutral groups using an adaptive MUSCL-Lax-Friedrich algorithm.
- A chemical element that evaluates the contribution of reactions of various species in the coma.
This combined approach leads to a more accurate representation of the cometary atmosphere since additional details of the interaction between the neutral gas and the plasma and their resulting structures are revealed. In particular, the multi-fluid representation of the ion population gives an improved view of the coupling between heavy and light ions and the resulting coma boundaries at different spatial scales.
Benna Marcus
Mahaffy Paul R.
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