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

M. Mizoguchi, Shigeru Aso, Yasuhiro 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.

Original languageEnglish
Title of host publication47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Publication statusPublished - Dec 1 2009
Event47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition - Orlando, FL, United States
Duration: Jan 5 2009Jan 8 2009

Other

Other47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
CountryUnited States
CityOrlando, FL
Period1/5/091/8/09

Fingerprint

film cooling
coolants
enthalpy
Coolants
Enthalpy
Cooling
cooling
Gases
gases
gas
catalysis
helium
aerodynamics
heat flux
aerodynamic heating
Aerodynamic heating
nonequilibrium flow
heating
Catalysis
Helium

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering

Cite this

Mizoguchi, M., Aso, S., & Tani, Y. (2009). Influence of coolant gas properties on film cooling effectiveness in high enthalpy flows. In 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition [2009-1034]

Influence of coolant gas properties on film cooling effectiveness in high enthalpy flows. / Mizoguchi, M.; Aso, Shigeru; Tani, Yasuhiro.

47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. 2009. 2009-1034.

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

Mizoguchi, M, Aso, S & Tani, Y 2009, Influence of coolant gas properties on film cooling effectiveness in high enthalpy flows. in 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition., 2009-1034, 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, Orlando, FL, United States, 1/5/09.
Mizoguchi M, Aso S, Tani Y. Influence of coolant gas properties on film cooling effectiveness in high enthalpy flows. In 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. 2009. 2009-1034
Mizoguchi, M. ; Aso, Shigeru ; Tani, Yasuhiro. / Influence of coolant gas properties on film cooling effectiveness in high enthalpy flows. 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. 2009.
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