种 宽 速 域 乘 波 三 角 翼 气 动 布 局 设 计

To overcome the difficulty in inclusive consideration of the subsonic/transonic/supersonic/hypersonic aero⁃ dynamic performance of hypersonic vehicles in wide-speed range，we propose a wide-speed-range hypersonic aero⁃ dynamic configuration with a waverider forebody and a large swept delta wing. The design of the waverider forebody is based on the conical flow theory. The design Mach number is 5. The wide-speed range airfoil based on the surrogate model optimization design is arranged on a large swept wing with a small aspect ratio. The result shows that in sub⁃ sonic flight，the configuration can improve aerodynamic performance using vortex lift at high angles of attack，with the lift-drag ratio maintained above 8. In supersonic flight，the double“S”shaped lower surface of the delta wing enables additional loading near the trailing edge of the aerodynamic configuration. In hypersonic flight，the shock wave charac⁃ teristics at the leading edge of the waverider improve the lift-drag performance. The lift-drag ratio in the supersonic/hy⁃ personic speed range is no smaller than 4. 5 with good cruise performance. In addition，the longitudinal static stability in the wide-speed range is analyzed，showing that the aerodynamic center of the aerodynamic configuration is near the tailing edge.