Numerical analysis of drag reduction for supersonic blunt body by pulse energy deposition

Shinichi Taguchi, Naofumi Ohnishi, Michiko Furudate, Keisuke Sawada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

We present the results of the numerical analysis for the wave drag reduction by a single pulse energy deposition in the supersonic flowfield around a sphere. The wave drag for the sphere is reduced as a result of the interaction between the blast wave produced by the energy deposition and the bow shock developed in front of the sphere. We have investigated the interaction mechanism and the drag reduction effect by the pulse energy deposition. The optimal energy deposition conditions to obtain the maximum drag reduction effect are found by the parametric studies varying the amount and the location of energy deposition. It is also found that the drag reduction effect is proportional to the freestream Mach number under the constant energy deposition condition.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
Pages14760-14767
Number of pages8
Publication statusPublished - 2007 Jul 2
Event45th AIAA Aerospace Sciences Meeting 2007 - Reno, NV, United States
Duration: 2007 Jan 82007 Jan 11

Publication series

NameCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
Volume21

Other

Other45th AIAA Aerospace Sciences Meeting 2007
CountryUnited States
CityReno, NV
Period07/1/807/1/11

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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