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Mathematical physics
Hydrodynamic flows in heated pipes with boundary layer computed using the BGK model
E. A. Zabrodina, O. V. Nikolaeva, N. N. Fimin, V. M. Chechetkin Federal Research Center Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, 125047, Moscow, Russia
Abstract:
The model problem of heat transfer from a nonuniformly heated pipe wall to the basic flow is considered, or, in other words, the initial stages of fluid temperature and pressure relaxation in a heated pipe are addressed. The computations are based on computer codes using various combinations of the Navier–Stokes equations, a modified Burnett equation, and the kinetic BGK equation.
Key words:
Boltzmann equations, Navier–Stokes equations, Burnett equations, macroscopic flow variables, Chapman–Enskog method, BGK equation.
Received: 09.11.2020 Revised: 09.11.2020 Accepted: 07.04.2021
Citation:
E. A. Zabrodina, O. V. Nikolaeva, N. N. Fimin, V. M. Chechetkin, “Hydrodynamic flows in heated pipes with boundary layer computed using the BGK model”, Zh. Vychisl. Mat. Mat. Fiz., 61:11 (2021), 1937–1952; Comput. Math. Math. Phys., 61:11 (2021), 1895–1909
Linking options:
https://www.mathnet.ru/eng/zvmmf11323 https://www.mathnet.ru/eng/zvmmf/v61/i11/p1937
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