Transonic Design Optimisation using Global Performance Boundaries

摘要

The paper compares alternative approaches for transonic aerofoil design, with particular attention paid to the associatedimpact for off-design characteristics. Results are presented for a new optimisation problem formulation, which uses globalperformance metrics directly instead of localised design conditions. In particular, the new approach achieves directoptimisation of global performance boundaries, including drag divergence and onset of wave drag.