Turbulence-Flame Interaction In The Thin Reaction Regime

Abstract

The effects of flow turbulence on combustion-induced phenomena are investigated for premixed combustion in the thin flamelet regime. Bluff-body flame stabilization is used to analyze propane-air flames in a blow-down wind tunnel. A novel customized turbulence generator is designed to modulate turbulence to the required inflow conditions for the current study. High-speed two-dimensional particle imaging velocimetry (PIV) and simultaneous chemiluminescence are used to characterized the turbulent flow-flame field. Turbulent flames are subjected to a variable pressure gradient, which is modulated by the test section geometry. This pressure gradient allows for direct control of combustioninduced phenomena, specifically including dilatation and baroclinicity. The relative balance of these combustion phenomena is subsequently analyzed using a novel Lagrangian tracking approach.

Publication Date

1-1-2017

Publication Title

53rd AIAA/SAE/ASEE Joint Propulsion Conference, 2017

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.2514/6.2017-4681

Socpus ID

85085848190 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85085848190

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