Chemical and Biomolecular Engineering Research and Publications

 

Date of this Version

5-1-1998

Citation

Chemical Engineering Science (1998) 53(9): 1,679-1,687

Comments

Copyright © 1998, Elsevier. Used by permission

Abstract

Combustion-driven acoustic oscillations are investigated by performing a onedimensional 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.

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