28th Congress of the International Council of the Aeronautical Sciences, 23 - 28 September 2012, Brisbane, Australia
Paper ICAS 2012-4.11.3

ROBUST DESIGN OPTIMIZATION OF HIGH-PERFORMANCE AXISYMMETRIC SCRAMJETS BASED ON SURROGATE-ASSISTED EVOLUTIONARY ALGORITHMS

A. Saha, T. Ray, H. Ogawa*, R. Boyce*
UNSW, Australia; *Univ. of Queensland, Australia

Keywords: scramjet, robust design, optimization, evolutionary algorithms

Successful scramjet operation requires robust optimal design immune to inherent uncertainties introduced during manufacture and operation. This paper discusses the results of an evolutionary multi-objective robust design optimization for the performance and stability of axisymmetric scramjets and investigates the characteristics of solutions that are robust against perturbations in design parameters.

view full paper