Analysis of combustion-driven acoustics

L. Boshoff-Mostert, H. J. Viljoen

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Combustion-driven acoustic oscillations are investigated by performing a one-dimensional stability analysis of a burner-stabilized premixed flame. In contrast to other investigators, no initial acoustic wave is assumed in the analysis; the downstream acoustic field results from flame instability. Two models are considered: the thermodiffusive model (uncoupled model) and the fully coupled thermodiffusive-hydrodynamic model. The fully coupled problem exhibits instability at a much lower critical Lewis number than the uncoupled problem.

Original languageEnglish (US)
Pages (from-to)1679-1687
Number of pages9
JournalChemical Engineering Science
Volume53
Issue number9
DOIs
StatePublished - May 1 1998

Keywords

  • Acoustic
  • Combustion
  • Stability analysis

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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