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A numerical simulation of a supersonic (M∞ = 7) flow around a cylinder with a front gas-permeable porous insert at a zero angle of attack was carried out using three-dimensional skeleton models of a highly porous cellular material made of non-intersecting hard spheres with a regular and chaotic arrangement of pores. A comparative analysis of these skeleton models with different spatial arrangement and pore size showed a weak influence of the structure of skeleton models on the resistance of a cylinder with a front gas-permeable insert. The computed data of the drag coefficient are compared with the results of tube experiments.

The paper presents the results of the numerical simulation of the supersonic (M∞ = 7) flow around the cylinder with the front gas-permeable porous insert at different angles of attack. The numerical simulation involves the comparative analysis of a number of skeleton models of high-porous cellular materials of the front insert: from the set of coaxial rings of different diameters, and the set of hollow spheres with different spatial resolution. The calculated data of the drag coefficient have been compared with the wind tunnel experiment results.