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Time-Independent Gravitational Fields in the BGK Scheme for Hydrodynamics

Abstract:

We incorporate a time-independent gravitational field into the BGK scheme for numerical hydrodynamics. In the BGK scheme the gas evolves via an approximation to the collisional Boltzmann equation, namely the Bhatnagar-Gross-Krook (BGK) equation. Time-dependent hydrodynamical fluxes are computed from local solutions of the BGK equation. By accounting for particle collisions, the fundamental mechanism for generating dissipation in gas flow, a scheme based on the BGK equation gives solutions to ...

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Publisher copy:
10.1051/aas:1999389

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Publication date:
1999-05-19
DOI:
URN:
uuid:578f9320-4e7b-4501-8dd7-7a14133e41a8
Source identifiers:
205878
Local pid:
pubs:205878
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