Abstract
For the purpose of taking the internal degrees of freedom into account, threetemperature approximating model equations, which are a generalization of the R- and ES–BGKmodels, are proposed for a diatomic gas. The surface pressure, friction, and heat transfer coefficients are compared with the direct simulation Monte Carlo (DSMC) solution in the problem of flow past a cylinder in the super- and hypersonic flow regimes. The dependence of the surface coefficients on the rotational collision number is analyzed.
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Original Russian Text © V.A. Titarev, A.A. Frolova, 2018, published in Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, 2018, No. 4, pp. 95–112.
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Titarev, V.A., Frolova, A.A. Application of Model Kinetic Equations to Calculations of Super- and Hypersonic Molecular Gas Flows. Fluid Dyn 53, 536–551 (2018). https://doi.org/10.1134/S0015462818040110
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DOI: https://doi.org/10.1134/S0015462818040110