Publication
Rarefied relativistic polyatomic gases in a gravitational field
| Summary: | The principal goal of the present paper is to study rarefied relativistic polyatomic gases in both Minkowski spacetime and Robertson-Walker spacetime. The field equations are determined from a recently developed generalized relativistic BGK-type model for polyatomic gases. This model is applied to both Minkowski spacetime and at and non at Robertson-Walker spacetimes. The equation of state for the non-equilibrium dynamical pressure is obtained from the Chapman-Enskog method applied to a variant of the Anderson and Witting model for polyatomic gases. |
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| Main Authors: | Oliveira, J. M. S. |
| Other Authors: | Soares, A. J.; Ramos, M. P. Machado |
| Subject: | Relativistic fluids Robertson-Walker space-time Minkowski space-time Polyatomic gases Kinetic theory BGK models |
| Year: | 2022 |
| Country: | Portugal |
| Document type: | article |
| Access type: | open access |
| Associated institution: | Universidade do Minho |
| Language: | English |
| Origin: | RepositóriUM - Universidade do Minho |
| Summary: | The principal goal of the present paper is to study rarefied relativistic polyatomic gases in both Minkowski spacetime and Robertson-Walker spacetime. The field equations are determined from a recently developed generalized relativistic BGK-type model for polyatomic gases. This model is applied to both Minkowski spacetime and at and non at Robertson-Walker spacetimes. The equation of state for the non-equilibrium dynamical pressure is obtained from the Chapman-Enskog method applied to a variant of the Anderson and Witting model for polyatomic gases. |
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