Fresh mixture entrainment in a jet curtain flameholder

Sridhara, K and Chidananda, MS (1981) Fresh mixture entrainment in a jet curtain flameholder. In: International Symposium on Air Breathing Engines, 16-22 Feb 1981, Bangalore, India.

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Abstract

An experimental investigation has been carried out to determine the fresh mixture entrainment in the circulation zone of a jet curtain stabilized flame. The entrainment values were obtained indirectly by determining the fuel-air ratios at lean blow-off limits of the flame.13; These experiments were carried out in a rectangular duct, of cross section 203.2mm x 152.4mm, at a pressure of 9x10 to the 4th N/sq m. Jets from the flameholder were injected perpendicular to the mainflow which consisted of a premixed mixture of aviation kerosene and air. Similar tests were also carried out on a 30 deg V-gutter which13; produced a geometric blockage of 0.375. The results obtained indicate that the entrainment fraction of the jet curtain flameholder is about 0.20 while that of the V-gutter, of comparable blockage, is only about 0.04.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Aircraft Engines;Flame Holders;Flame Stability;Fuel-Air Ratio;Jet Engines;Premixed Flames;Air Flow;Fluid Dynamics;Fuel Flow;Gas13; MIXTURES
Subjects: AERONAUTICS > Aircraft Propulsion and Power
Division/Department: Other, Centre for Civil Aircraft Design and Development
Depositing User: Ms Indrani V
Date Deposited: 04 Jul 2007
Last Modified: 24 May 2010 09:55
URI: http://nal-ir.nal.res.in/id/eprint/4228

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