05 - Propulsion
A COMPARITIVE ASSESSMENT OF MULTI-OBJECTIVE OPTIMISATION METHODOLOGIES FOR AERO-ENGINE NACELLES
A. Swarthout¹, D. MacManus¹, F. Tejero¹, J. Matesanz-Garcia¹, L. Boscagli¹, C. Sheaf, Rolls Royce Plc., United Kingdom; ¹Cranfield University, United Kingdom
Compact aero engine nacelles may promise to reduce the drag and weight penalties associated with ultra-high bypass ratio turbofans. These nacelles may be sensitive to off design conditions. This paper tests three methods of optmising compact nacelles with windmilling considerations. It demonstrates how to consider different sets of representative flow physics within complex optimisation problems.