Shock control with baroclinic vortex induced by a pulse energy deposition

Yousuke Ogino, Masami Tate, Naofumi Ohnishi

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

3 Citations (Scopus)

Abstract

We have conducted inviscid flow computations of wave drag reduction by a single pulse energy deposition in a supersonic flowfield around a blunt body. The wave drag for a sphere is reduced as a result of interaction between a blast wave produced by the energy deposition and the bow shock formed in front of the sphere. Effects of deposited energy and deposition location on energy reduction were examined by parametric studies. From obtained results, we have refined on parameters utilizing the baroclinic source term in vorticity equation. The amount of energy reduction analytically estimated by the baroclinic vortex has a linear dependence with low-density radius of the blast wave and is proportional to the square of freestream Mach number as well as the computational result.

Original languageEnglish
Title of host publication47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781563479694
DOIs
Publication statusPublished - 2009

Publication series

Name47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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