15 - Guest lectures

SDF-BASED GEOMETRY BLENDING OF HYPERSONIC VEHICLE CONCEPTS

S. Takahashi¹, T. Nagata, Nagoya University, Japan; M. Koga¹, T. Isono¹, M. Takegoshi¹; ¹JAXA, Japan

Hypersonic vehicle design requires balancing aerodynamic performance and geometric characteristics. This study presents a geometry blending framework based on signed distance functions (SDFs) for generating continuous shape transitions between different hypersonic vehicle concepts. Vehicle geometries are represented as Cartesian-grid SDF fields and analyzed using modal decomposition techniques. Intermediate configurations are generated through SDF interpolation between lifting-body and waverider-type concepts. The resulting vehicle family is evaluated using aerodynamic and flight trajectory analyses under Mach numbers ranging from 3 to 6. Geometric and flight-performance characteristics are compared to investigate trends within the generated design space.

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