Aerodynamics-informed parametric method for rapid waverider design based on the second-order curved shock theory

Waverider design based on osculating theory presents two critical issues: robust specification of design curves and accurate solution of the basic flowfield. Although the existing parametric approaches have advanced rapid configuration generation through geometric parameterization frameworks, they critically neglect the inherent coupling between aerodynamic constraints and geometric design parameters. To overcome this limitation, an Aerodynamics-Informed Parametric (AIP) method is developed by analytically deriving three waverider design curves and integrating them with the second-order curved shock theory. This method enables rapid waverider surface design while accounting for inflow conditions and shock wave geometry. Three typical waveriders, each featuring distinct combinations of design curves as inputs, are constructed and evaluated through inviscid and viscous numerical simulations to validate the applicability and accuracy of the AIP method. The results indicate that waveriders derived using the AIP method successfully reproduce the preassigned shock waves and original flowfields. Compared to traditional waverider design techniques based on the method of characteristics, the AIP method reduces computation time by approximately 94 %, while maintaining errors in the inviscid lift-to-drag ratio, viscous lift-to-drag ratio, and volumetric efficiency below 0.1 %, 4.0 %, and 0.1 %, respectively. Additionally, a specially designed model is fabricated for the wind-tunnel tests to analyze the hypersonic aerodynamic performance of the waverider. Both numerical and experimental results confirm the feasibility of the AIP method, making it a promising candidate for waverider design and optimization.