Journal article

A numerical study of auto-ignition in turbulent lifted flames issuing into a vitiated co-flow

RL Gordon, AR Masri, SB Pope, GM Goldin

Combustion Theory and Modelling | Published : 2007


This paper presents a numerical study of auto-ignition in simple jets of a hydrogen-nitrogen mixture issuing into a vitiated co-flowing stream. The stabilization region of these flames is complex and, depending on the flow conditions, may undergo a transition from auto-ignition to premixed flame propagation. The objective of this paper is to develop numerical indicators for identifying such behavior, first in well-known simple test cases and then in the lifted turbulent flames. The calculations employ a composition probability density function (PDF) approach coupled to the commercial CFD code, FLUENT. The in-situ-adaptive tabulation (ISAT) method is used to implement detailed chemical kineti..

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University of Melbourne Researchers