Comparison of numerical simulations and PLIF imaging results of hypersonic inert and reactive flows around blunt projectiles

  • K. Toshimitsu
  • A. Matsuo
  • M. R. Kamel
  • C. I. Morris
  • R. K. Hanson
Conference paper

Abstract

This paper shows comparisons between computational fluid dynamics (CFD) calculations and PLIF and Schlieren measurements of inert and reactive hypersonic flows around 2D and axisymmetric bodies. In particular, both hydrogen-oxygen and methane-oxygen chemical reactions are considered for the shock-induced combustion in hypersonic flows. The hydrogen-oxidation mechanism consists of an existing mechanism of 8 reacting species and 19 elementary reactions. The reduced model of the methane-oxidation mechanism is newly derived from the GRI-Mech 1.2 optimized detailed chemical reaction mechanism, and consists of 14 species and 19 chemical reaction steps. Both chemical reaction mechanisms are combined with a point-implicit Euler CFD code. The OH species density distributions of the present numerical calculations and imaging experiments for both mixtures are found to be in qualitative agreement.

Key words

Hypersonic flows Shock-induced combustion Hydrogen-oxygen Methane-oxygen CFD PLIF Blunt projectiles 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • K. Toshimitsu
    • 1
  • A. Matsuo
    • 2
  • M. R. Kamel
    • 3
  • C. I. Morris
    • 3
  • R. K. Hanson
    • 3
  1. 1.Department of Aeronautics and AstronauticsKyushu UniversityFukuokaJapan
  2. 2.Department of Mechanical EngineeringKeio UniversityYokohama 223Japan
  3. 3.Department of Mechanical EngineeringStanford UniversityStanfordUSA

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