A flamelet approach for modeling of liquid oxygen (LOX)/methane flames at supercritical pressures

Nan Zong, Guillaume Ribert, Vigor Yang

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

18 Citations (Scopus)

Abstract

A comprehensive theoretical/numerical framework has been established to treat the combustion of liquid oxygen (LOX) and methane under supercritical conditions. The model accounts for detailed LOX/methane reaction mechanisms, and accommodates the effect of scalar dissipation on finite-rate chemistry. Turbulence closure is achieved by a large-eddy simulation technique. Several different turbulent combustion models are implemented and assessed by comparing the chemical and turbulence time scales at conditions typical of liquid-propellant engine rocket operation. Results indicate that the flamelet assumption is appropriate. The direct-closure approach may over-predict the reaction rate. The supercritical mixing and combustion LOX and methane downstream of a splitter are analyzed systemically, and the effects of real-fluid thermodynamics on the cryogenic-fluid flame evolution are quantified.

Original languageEnglish
Title of host publication46th AIAA Aerospace Sciences Meeting and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781563479373
Publication statusPublished - 2008

Publication series

Name46th AIAA Aerospace Sciences Meeting and Exhibit

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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