Influence of coolant gas properties on film cooling effectiveness in high enthalpy flows

M. Mizoguchi, S. Aso, Y. Tani

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

Abstract

The influence of coolant gas properties on film cooling effectiveness has been investigated numerically. Finite-rate catalysis is assumed in chemically and thermally nonequilibrium flows. Numerical simulation shows that helium is an effective coolant for the reduction of aerodynamic heating in high enthalpy flows. The reduction of diffusive heat flux is shown to depend on the kind of coolant gas, injected mass, and diffusion mass flux of atomic species into the coolant layer. Therefore, the diffusion process between the coolant and atomic species is an additional factor affecting film cooling effectiveness in high enthalpy flows. Copyright Â

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 - Jan 1 2009

Publication series

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

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering

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