Physical insight into fuel mixing enhancement with backward-facing step for scramjet engines via multi-objective design optimization

H. Ogawa, Chih-yung Wen, Y. C. Chang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Fuel injection into crossflow behind a backwardfacing step is studied by means of multi-objective design optimization, aiming at fuel/air mixing for supersonic combustion of scramjet propulsion. A variety of injector configurations have been examined in the optimization process using evolutionary algorithms in conjunction with local search methods and surrogate modeling. Data mining has been performed by applying statistical techniques including variance-based sensitivity analysis to the surrogate models constructed with solutions from computational fluid dynamics. The injection angle and backward step height have been found to be the most influential design parameters on the mixing performance for the configurations considered in this study.
Original languageEnglish
Title of host publication29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014
PublisherInternational Council of the Aeronautical Sciences
ISBN (Electronic)3932182804
Publication statusPublished - 1 Jan 2014
Event29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014 - St. Petersburg, Russian Federation
Duration: 7 Sep 201412 Sep 2014

Conference

Conference29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014
Country/TerritoryRussian Federation
CitySt. Petersburg
Period7/09/1412/09/14

Keywords

  • Backward-facing step
  • CFD
  • Evolutionary algorithms
  • Fuel injection
  • Surrogate modeling

ASJC Scopus subject areas

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Materials Science(all)

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