scholarly journals A general consistent BGK model for gas mixtures

2018 ◽  
Vol 11 (6) ◽  
pp. 1377-1393 ◽  
Author(s):  
Alexander V. Bobylev ◽  
◽  
Marzia Bisi ◽  
Maria Groppi ◽  
Giampiero Spiga ◽  
...  
Keyword(s):  
Gas Mixtures ◽  
Bgk Model

Hydrodynamic equations from a BGK model for inert gas mixtures

2019 ◽  
Author(s):  
M. Bisi ◽  
A. V. Bobylev ◽  
M. Groppi ◽  
G. Spiga
Keyword(s):  
Gas Mixtures ◽  
Inert Gas ◽  
Hydrodynamic Equations ◽  
Bgk Model

scholarly journals Derivation of a BGK model for reacting gas mixtures

2014 ◽  
Vol 12 (7) ◽  
pp. 1199-1223 ◽  
Author(s):  
Stéphane Brull ◽  
Jacques Schneider
Keyword(s):  
Gas Mixtures ◽  
Bgk Model

scholarly journals Hypocoercivity for a BGK model for gas mixtures

2019 ◽  
Vol 267 (1) ◽  
pp. 119-149
Author(s):  
Liu Liu ◽  
Marlies Pirner
Keyword(s):  
Gas Mixtures ◽  
Bgk Model

A BGK model for gas mixtures

2012 ◽  
Author(s):  
S. Brull ◽  
V. Pavan ◽  
J. Schneider
Keyword(s):  
Gas Mixtures ◽  
Bgk Model

scholarly journals A Review on BGK Models for Gas Mixtures of Mono and Polyatomic Molecules

Fluids ◽  
2021 ◽  
Vol 6 (11) ◽  
pp. 393
Author(s):  
Marlies Pirner
Keyword(s):  
Boltzmann Equation ◽  
Mathematical Theory ◽  
Degrees Of Freedom ◽  
Rarefied Gas ◽  
Entropy Inequality ◽  
Gas Mixtures ◽  
Polyatomic Molecules ◽  
Bgk Model ◽  
Practical Applications ◽  
Internal Degrees Of Freedom

We consider the Bathnagar–Gross–Krook (BGK) model, an approximation of the Boltzmann equation, describing the time evolution of a single momoatomic rarefied gas and satisfying the same two main properties (conservation properties and entropy inequality). However, in practical applications, one often has to deal with two additional physical issues. First, a gas often does not consist of only one species, but it consists of a mixture of different species. Second, the particles can store energy not only in translational degrees of freedom but also in internal degrees of freedom such as rotations or vibrations (polyatomic molecules). Therefore, here, we will present recent BGK models for gas mixtures for mono- and polyatomic particles and the existing mathematical theory for these models.

A BGK Model for Gas Mixtures

2014 ◽  
Vol 132 (1) ◽  
pp. 117-125 ◽  
Author(s):  
Stéphane Brull ◽  
Jacques Schneider ◽  
Vincent Pavan
Keyword(s):  
Gas Mixtures ◽  
Bgk Model
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