Molecular extended thermodynamics of rarefied polyatomic gases and wave velocities for increasing number of moments |
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| Authors: | Takashi Arima Andrea Mentrelli Tommaso Ruggeri |
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| Affiliation: | 1. Center for Social Contribution and Collaboration, Nagoya Institute of Technology, Japan;2. Department of Mathematics & Research Center of Applied Mathematics (CIRAM), University of Bologna, Italy |
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| Abstract: | Molecular extended thermodynamics of rarefied polyatomic gases is characterized by two hierarchies of equations for moments of a suitable distribution function in which the internal degrees of freedom of a molecule is taken into account. On the basis of physical relevance the truncation orders of the two hierarchies are proven to be not independent on each other, and the closure procedures based on the maximum entropy principle (MEP) and on the entropy principle (EP) are proven to be equivalent. |
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| Keywords: | Extended thermodynamics Maximum entropy principle Rarefied polyatomic gas Maximum characteristic velocity Moments equation |
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