A flame holder is a specialized baffle mounted in a high-velocity combustible flow, such as within the combustion section of a jet engine, to create a local region of turbulence and low velocity in which a flame can remain stable.[1]
Jet engine afterburners and ramjets require a flame holder.[2]
The simplest design, often used in amateur projects, is the can-type flame holder, which consists of a can covered in small holes. Much more effective is the H-gutter flame holder, which is shaped like a letter H with a curve facing and opposing the flow of air. Even more effective, however, is the V-gutter flame holder, which is shaped like a V with the point in the direction facing the flow of air. Some studies have suggested that adding a small amount of base bleed to a V-gutter helps reduce drag without reducing effectiveness.[3] The most effective of the flame holders are the step type flame holder and the strut type flame holder.
The first mathematical model of a flame holder was proposed in 1953.[4]
↑"Wayback Machine"(PDF). www.ijser.org. Archived(PDF) from the original on 2021-05-01. Retrieved 2025-09-09.{{cite web}}: Cite uses generic title (help)
↑Matkowsky, B. J.; Olagunju, D. O. (1981). "Pulsations in a Burner-Stabilized Premixed Plane Flame". SIAM Journal on Applied Mathematics. 40 (3): 551–562. doi:10.1137/0140046. JSTOR2101350. See p.552.
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