24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-2.5.2

AIRCRAFT DESIGN USING A GRADIENT-BASED OPTIMIZATION TECHNIQUE

P. Weinerfelt
SAAB Aerosystems, Sweden

Keywords: aerodynamic shape optimization, adjoint technique, Euler calculations, aircraft design

The present paper describes aircraft design by means of the aerodynamic shape optimisation system cadsos at SAAB. It is a general optimisation system which can handle both geometrical and aerodynamic multi-point design under multiconstraints. The optimisation technique is based on gradient calculation using flow and adjoint flow computations.

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