Toroidal skeleton model of a high-porosity cellular material for modeling a supersonic flow around a cylinder with a gas-permeable frontal insert at an angle of attack
S.G. Mironov, S.V. Kirilovskiy, T.S. Militsyna, T.V. Poplavslaya, I.S. Tsyryulnikov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Keywords: supersonic flow, gas-permeable cellular-porous materials, experiment, numerical simulation
Abstract
Results of numerical simulations of a supersonic (М¥ = 7) flow around a cylinder with a gas-permeable frontal insert made of a high-porosity cellular material are reported. A toroidal skeleton model of a high-porosity medium is developed and implemented to describe air filtration in the gas-permeable insert. The aerodynamic coefficients of the cylinder model for various angles of attack ( a = 0¸15°) are obtained. They are found to agree well with available experimental data, which confirms that the proposed skeleton model adequately describes the real properties of high-porosity materials.
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