Results of experimental and numerical modeling of a supersonic flow around a cylinder with a frontal gas-permeable high-porosity insert aligned at different angles of attack are presented. The experiments are performed in a supersonic wind tunnel at the Mach number $$\mbox{M}_{\infty }=7$$ and unit Reynolds number $$\mbox{Re}_{1}=1.5 \cdot 10^6$$ m $$^{ - 1}$$ in the range of the angles of attack $$0–25^\circ$$ . The numerical simulations are performed by means of solving three-dimensional Reynolds-averaged Navier–Stokes equations with the use of a three-dimensional ring skeleton model of the porous material. The drag and lift coefficients for a cylinder with a 95% porosity and pore diameter of 2 mm are obtained for different values of the insert length and angle of attack.

中文翻译：

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具有一定迎角的透气多孔插入体的超音速流动的物理和数学建模

介绍了围绕圆柱体的超音速流动的实验和数值建模结果，该圆柱体具有以不同攻角排列的正面透气性高孔隙率插入件。实验在超音速风洞中进行，马赫数 $$\mbox{M​​}_{\infty }=7$$ 和单位雷诺数 $$\mbox{Re}_{1}=1.5 \cdot 10^ 6$$ m $$^{ - 1}$$ 在攻角 $$0–25^\circ$$ 的范围内。数值模拟是通过使用多孔材料的三维环骨架模型求解三维雷诺平均纳维-斯托克斯方程来进行的。对于具有 95% 孔隙率和 2 mm 孔径的圆柱体的阻力和升力系数是针对不同的插入长度和攻角值获得的。