Drag reduction is one of the important problems for the supersonic vehicles. As one of the drag reduction methods, aerospike has been used in some equipment because of its good drag reduction effect. In this paper, the numerical simulations of Carman curve bodies with different lengths of the aerospike and different radius of the flat cylindrical aerodisk in supersonic flow freestream are investigated. Based on the numerical simulations, the mechanism of drag reduction of the aerospike is discussed. The drag reduction effect influence of the parameters of the aerodisk radius and the aerospike length on the Carman curve body is analyzed. The aerodisk radius within a certain range is helpful for the drag reduction. The change of length of the aerospike has little effect on the drag of Carmen curve bodies. The drag reduction effect of the same aerospike becomes worse with the increase of the incoming Mach number.

中文翻译：

---

超音速卡曼曲线气溶胶的数值模拟。

减阻是超音速车辆的重要问题之一。作为减阻方法之一，气溶胶由于其良好的减阻效果而被用于某些设备中。本文研究了超声速自由流中不同气钉长度和扁平圆柱气垫半径的Carman曲线体的数值模拟。在数值模拟的基础上，探讨了气钉减阻机理。分析了圆盘半径和气钉长度参数对减阻效果的影响，对卡曼曲线体产生了影响。磁盘半径在一定范围内有助于减小阻力。气钉长度的变化对卡门曲线体的阻力影响很小。