Analysis of intrinsic flamefront instabilities in response to external acoustic forcing

V. B. Akkerman, C. K. Law

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The response of premixed and diffusion flames to externally applied acoustic forcing was analyzed for its relevance to the excitation of unstable combustion in liquid rocket engines (LREs). Recognizing that combustion instability can be manifested in several modes, analyses were conducted for the diffusional-thermal, Darrieus-Landau, and Rayleigh-Taylor (body-force) instabilities for premixed flames, and the Kelvin-Helmholtz and Rayleigh-Taylor instabilities for diffusion flames. The role of chamber-generated sound in modifying the inherent flamefront instabilities and triggering the parametric instability was considered. The dependence of the stability domains on the various thermal-chemical flame properties as well as hydrodynamic parameters were determined.

Original languageEnglish (US)
Title of host publicationFall Technical Meeting of the Eastern States Section of the Combustion Institute 2011
PublisherCombustion Institute
Pages616-624
Number of pages9
ISBN (Electronic)9781622761258
StatePublished - Jan 1 2011
EventFall Technical Meeting of the Eastern States Section of the Combustion Institute 2011 - Storrs, United States
Duration: Oct 9 2011Oct 12 2011

Publication series

NameFall Technical Meeting of the Eastern States Section of the Combustion Institute 2011

Other

OtherFall Technical Meeting of the Eastern States Section of the Combustion Institute 2011
CountryUnited States
CityStorrs
Period10/9/1110/12/11

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Mechanical Engineering
  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Analysis of intrinsic flamefront instabilities in response to external acoustic forcing'. Together they form a unique fingerprint.

  • Cite this

    Akkerman, V. B., & Law, C. K. (2011). Analysis of intrinsic flamefront instabilities in response to external acoustic forcing. In Fall Technical Meeting of the Eastern States Section of the Combustion Institute 2011 (pp. 616-624). (Fall Technical Meeting of the Eastern States Section of the Combustion Institute 2011). Combustion Institute.