Abstract

Results of experimental and numerical investigations of a supersonic flow of cylindrical models aligned at a zero angle of attack with frontal inserts made of cellular porous nickel are reported. The experiments are performed in a supersonic wind tunnel at Mach numbers \(\text{M}_{\infty } = 4.85\) and 7.00 and unit Reynolds numbers \(\text{Re}_1 = 2.7\cdot 10^6\) and \(1.5\cdot 10^6\) m\(^{ - 1}\), respectively. Numerical simulations with the use of a ring-shaped skeletal model of the porous material are also performed. A possibility of drag control is studied for two thermal methods: external heating of the porous insert and internal heating of the insert by a glow discharge. The mechanisms of the thermal action and the efficiency of the thermal methods of drag control are analyzed.

中文翻译：

---

超音速流动中带有多孔插入件的圆柱体的阻力控制热方法

摘要

报告了以零攻角对齐的圆柱形模型的超音速流动的实验和数值研究结果，正面插入由多孔镍制成。实验在超音速风洞中以马赫数\(\text{M}_{\infty } = 4.85\)和 7.00 以及单位雷诺数\(\text{Re}_1 = 2.7\cdot 10^6\ )和\(1.5\cdot 10^6\)  m \(^{ - 1}\)， 分别。还使用多孔材料的环形骨架模型进行数值模拟。研究了两种热方法的阻力控制的可能性：多孔插入物的外部加热和通过辉光放电的插入物的内部加热。分析了热作用机理和热力控制方法的效率。