Coupled subsystem optimization for preliminary core engine design

Abstract

In this paper we present an approach for preliminary aero engine design with the overall goal to improve the core engine with regards to efficiency and emissions. This is achieved through the usage of a cascaded multi-criterion global optimization strategy, where the overall optimization is performed on the basis of decoupled black box sub-optimization of components. Such an approach has the advantage to cut down the number of design variables for each optimization problem involved and to use legacy code for components.