Optimization of sonic boom suppression by off-body energy deposition

Xiao Qiang Feng, Zhan Ke Li, Jian Hua Sang, Bi Feng Song

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Sonic boom suppression method is the key technology of next generation supersonic aircraft. Low boom mechanism of the off-body energy deposition is analyzed by using the thermal chocking model. The mass flux of energy deposition region is small than no energy deposition region, and off-body energy deposition will induce a bow shock wave. The mechanism of off body energy deposition is similar with quiet spike, so it can be regard as a virtual quiet spike. Off-body energy deposition analysis software is developed based on CFD, waveform parameter method and NSGA-II genetic algorithm. The location coordinate, value, shape and location number of energy deposition are the key parameters in low boom design. Initial pressure of optimized energy deposition decrease near about 54.65 than no energy deposition, and rise time increase 543.2%.

Original languageEnglish
Title of host publicationApplied Mechanics and Materials II
Pages7-13
Number of pages7
DOIs
StatePublished - 2014
Event2013 2nd International Conference on Applied Mechanics and Materials, ICAMM 2013 - Zhuhai, China
Duration: 23 Nov 201324 Nov 2013

Publication series

NameApplied Mechanics and Materials
Volume477-478
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2013 2nd International Conference on Applied Mechanics and Materials, ICAMM 2013
Country/TerritoryChina
CityZhuhai
Period23/11/1324/11/13

Keywords

  • CFD
  • Off-body energy deposition
  • Shock wave
  • Sonic boom

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