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This article is cited in 4 scientific papers (total in 4 papers)
Numerical simulation of heterogeneous combustion of axisymmetric porous objects under forced filtration and natural convection
K. G. Borovikab, N. A. Lutsenkoab a Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences, 690041, Vladivostok, Russia
b Far Eastern Federal University, 690922, Vladivostok, Russia
Abstract:
A numerical model for heterogeneous combustion of axisymmetric porous objects has been proposed that allows one to simulate processes under both forced filtration natural convection. The influence of the location of the ignition zone on combustion in a cylindrical porous reactor has been investigated. It has been shown that under forced filtering, the process similar to plane case: the combustion wave moves upward and sideways from the ignition source, completely burning out the solid fuel, while the gas tends to bypass hot zones and flow through colder regions. Under natural convection conditions, as in the plane case, the oxidizer flow into the reaction zone is significantly affected by vortex gas flows that arise in the vicinity of the combustion center at the initial time. In this case, the direction propagation of combustion waves in the axisymmetric case can significantly differ from thatin the plane case.
Keywords:
porous media, gas filtration, heterogeneous combustion, numerical simulation, finite difference method.
Received: 01.12.2021 Revised: 12.01.2022
Citation:
K. G. Borovik, N. A. Lutsenko, “Numerical simulation of heterogeneous combustion of axisymmetric porous objects under forced filtration and natural convection”, Fizika Goreniya i Vzryva, 58:3 (2022), 40–53; Combustion, Explosion and Shock Waves, 58:3 (2022), 290–302
Linking options:
https://www.mathnet.ru/eng/fgv843 https://www.mathnet.ru/eng/fgv/v58/i3/p40
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