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Macroscopic boundary conditions on a solid surface in rarefied gas flow for a one-dimensional nonlinear nonstationary 12-moment system of Boltzmann equations
Sh. A. Akimzhanovaa, A. Sakabekovb a Kazakh National Research University, Almaty, 050040 Kazakhstan
b Al-Farabi Kazakh National University, Almaty, 050040 Kazakhstan
Abstract:
Boundary conditions for a one-dimensional nonlinear nonstationary system of Boltzmann equations are formulated in the fifth approximation. The Maxwell microscopic boundary conditions are approximated in the case of the one-dimensional Boltzmann equation when some of the molecules reflect specularly from the surface, while the others reflect diffusely with Maxwell's distribution. An initial-boundary value problem for the
12-moment system of Boltzmann equations with Maxwell–Auzhani boundary conditions is stated. For the 12-moment system of Boltzmann equations, six boundary conditions are set at the left and right endpoints of the interval ($-a$, $a$ ).
Key words:
Boltzmann equation, system of Boltzmann moment equations, Maxwell boundary condition, Maxwell–Auzhani macroscopic boundary conditions.
Received: 23.03.2019 Revised: 19.04.2019 Accepted: 15.05.2019
Citation:
Sh. A. Akimzhanova, A. Sakabekov, “Macroscopic boundary conditions on a solid surface in rarefied gas flow for a one-dimensional nonlinear nonstationary 12-moment system of Boltzmann equations”, Zh. Vychisl. Mat. Mat. Fiz., 59:10 (2019), 1769–1778; Comput. Math. Math. Phys., 59:10 (2019), 1710–1719
Linking options:
https://www.mathnet.ru/eng/zvmmf10971 https://www.mathnet.ru/eng/zvmmf/v59/i10/p1769
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Abstract page: | 120 | References: | 9 |
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