Direct numerical simulation of turbulent nonpremixed flame extinction by water spray

Hong Im, A. Trouvé, Paul Arias, P. Narayanan

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a brief overview of our INCITE 2007 project on the direct numerical simulation of nonpremixed flames subjected to turbulent flows and water spray evaporation. The simulation is a culmination of our recent developments in advanced physical submodels associated with radiative heat transfer and Lagrangian spray dynamics. One of the main objectives is to identify and verify a unified extinction criterion based on the flame weakness factor built on the excess enthalpy variable concept. The results from two-dimensional turbulent ethylene-air flames suggest that the proposed diagnostic tool provides a correct measure of flame weakening. Further work is under way to extend the analysis over a wide range of parametric conditions.

Original languageEnglish (US)
Article number012030
JournalJournal of Physics: Conference Series
Volume125
DOIs
StatePublished - Jan 1 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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