BGK and Fokker-Planck models of the Boltzmann equation for gases with discrete levels of vibrational energy
Idioma
en
Article de revue
Este ítem está publicado en
Journal of Statistical Physics. 2020
Springer Verlag
Fecha de defensa
2020Resumen en inglés
We propose two models of the Boltzmann equation (BGK and Fokker-Planck models) for rarefied flows of diatomic gases in vibrational non-equilibrium. These models take into account the discrete repartition of vibration energy ...Leer más >
We propose two models of the Boltzmann equation (BGK and Fokker-Planck models) for rarefied flows of diatomic gases in vibrational non-equilibrium. These models take into account the discrete repartition of vibration energy modes, which is required for high temperature flows, like for atmospheric re-entry problems. We prove that these models satisfy conservation and entropy properties (H-theorem), and we derive their corresponding compressible Navier-Stokes asymptotics.< Leer menos
Palabras clave en inglés
BGK model
H-theorem
Rarefied Gas Dynamics
vibrational molecules
Fokker-Planck model
Orígen
Importado de HalCentros de investigación