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Title:

Thermal Versus Acoustic Response of Velocity Sensitive Premixed Flames

Document type:
Zeitschriftenaufsatz
Author(s):
Bomberg, S.; Emmert, T.; Polifke, W.
Abstract:
Premixed flames respond to velocity perturbations with fluctuations in heat release rate (``thermal response''), which in turn generate acoustic perturbations (``acoustic response''). The latter may subsequently influence the velocity field in such a manner that feedback leads to self-excited thermoacoustic instability. The present paper investigates interrelations between the thermal and the acoustic responses of premix flames. The analysis is formulated such that it properly represents the und...     »
Keywords:
thermoacoustic instability; combustion dynamics; flame transfer function; premixed flame; causality
Journal title:
Proceedings of the Combustion Institute
Year:
2015
Journal volume:
35
Year / month:
2015-01
Quarter:
1. Quartal
Month:
Jan
Journal issue:
3
Pages contribution:
3185-3192
Covered by:
Scopus; Web of Science
Fulltext / DOI:
doi:10.1016/j.proci.2014.07.032
WWW:
http://dx.doi.org/10.1016/j.proci.2014.07.032
TUM Institution:
Professur für Thermofluiddynamik
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