6 papers
An ES-BGK model for vibrational polyatomic gases
Y Dauvois, J. Mathiaud, Luc Mieussens
We propose an extension of the Ellipsoidal-Statistical BGK model to account for discrete levels of vibrational energy in a rarefied polyatomic gas. This model satisfies an H-theore…
Numerical boundary conditions in Finite Volume and Discontinuous Galerkin schemes for the simulation of rarefied flows along solid boundaries
Céline Baranger, Nicolas Hérouard, Julien Mathiaud +1
We present a numerical comparison between two standard finite volume schemes and a discontinuous Galerkin method applied to the BGK equation of rarefied gas dynamics. We pay a part…
An Eulerian model for sea spray transport and evaporation
Fabrice Veron, Luc Mieussens
Reliable estimates of the fluxes of momentum, heat, and moisture at the air-sea interface are essential for accurate long term climate projections, as well as the prediction of sho…
BGK and Fokker Planck Models for thermally perfect gases
J. Mathiaud, Luc Mieussens
We propose two models of the Boltzmann equation (BGK and Fokker-Planck models) for rarefied flows of thermally perfect gases. These models take into account various models of energ…
BGK and Fokker-Planck models of the Boltzmann equation for gases with discrete levels of vibrational energy
J. Mathiaud, Luc Mieussens
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 t…
A BGK model for high temperature rarefied gas flows
Céline Baranger, Yann Dauvois, Gentien Marois +3
High temperature gases, for instance in hypersonic reentry flows, show complex phenomena like excitation of rotational and vibrational energy modes, and even chemical reactions. Fo…