Automated aerodynamic optimization system for SST wing-body configuration

Daisuke Sasaki, Guowei Yang, Shigeru Obayashi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In this paper, wing-body configurations for a next generation Supersonic Transport are designed by means of Multi-objective Evolutionary Algorithms. SST wing-body configurations are designed to reduce the aerodynamic drag and the sonic boom for supersonic flight. To lower the sonic boom intensity, the present objective function is to satisfy the equivalent area distribution for low sonic boom proposed by Darden. Wing and fuselage is defined by 131 design variables and optimized at the same time. Structured multiblock grids around SST wing-body configuration are generated automatically and an Euler solver is used to evaluate the aerodynamic performance of SST wing-body configuration. Compromised solutions are found as Pareto solutions. Although they have a variety of fuselage configurations, all of them have a similar wing planform due to the imposed constraints. The present results imply that a lifting surface should be distributed innovatively to match Darden's distribution for low boom.

Original languageEnglish
Pages (from-to)230-237
Number of pages8
JournalTransactions of the Japan Society for Aeronautical and Space Sciences
Volume47
Issue number154
DOIs
Publication statusPublished - 2004 Feb

Keywords

  • Aerodynamics
  • CFD
  • Design
  • MOEA
  • Wing-Body Configuration

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

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