Characteristics of turbulent lifted flames in coflow jets with various initial temperatures

K. N. Kim, S. H. Won, S. H. Chung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Characteristics of turbulent lifted flames in coflow jets have been investigated by varying the initial temperature of coflow air from 300 to 900K. In the turbulent jet regime, the liftoff height increases linearly with jet velocity and decreases with initial temperature. The behaviors of liftoff height have been investigated based on the premixed flame model and the large-scale mixing model. For the liftoff height, the premixed flame model was found to be effective regardless of initial temperature. In the case of the large-scale mixing model, the thermal diffusivity evaluated at initial temperature showed much improved correlation than at the adiabatic flame temperature which adopted previously.

Original languageEnglish (US)
Title of host publication5th Asia-Pacific Conference on Combustion, ASPACC 2005
Subtitle of host publicationCelebrating Prof. Bob Bilger's 70th Birthday
Pages317-320
Number of pages4
StatePublished - 2005
Externally publishedYes
Event5th Asia-Pacific Conference on Combustion, ASPACC 2005 - Adelaide, SA, Australia
Duration: Jul 17 2005Jul 20 2005

Other

Other5th Asia-Pacific Conference on Combustion, ASPACC 2005
CountryAustralia
CityAdelaide, SA
Period07/17/0507/20/05

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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