Global existence to the BGK model of Boltzmann equation
β Scribed by B. Perthame
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 547 KB
- Volume
- 82
- Category
- Article
- ISSN
- 0022-0396
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π SIMILAR VOLUMES
In this paper we prove the entropy inequality for the Gaussian-BGK model of Boltzmann equation. This model, also called ellipsoidal statistical model, was introduced in order to fit realistic values of the transport coefficients (Prandtl number, second viscosity) in the Navier-Stokes approximation,
We prove the convergence of a conservative and entropic discrete-velocity model for the Bathnagar-Gross-Krook (BGK) equation. In this model, the approximation of the Maxwellian is based on a discrete entropy minimization principle. The main difficulty, due to its implicit definition, is to prove tha