Experimental Investigation of Flame Stability of Enclosed Laminar Jet Diffusion Flame PDF Download
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Author: Brandon J. Ryan
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Category :
Languages : en
Pages :
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Author: Brandon J. Ryan
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Languages : en
Pages :
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Author: Thomas H. Cochran
Publisher:
ISBN:
Category : Combustion
Languages : en
Pages : 38
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An experimental program was conducted to study the burning of laminar gas jet diffusion flames in a zero-gravity environment. The tests were conducted in the Lewis Research Center's 2.2- Second-Zero-Gravity Facility and were a part of a continuing effort investigating the effects of gravity on basic combustion processes. The photographic results indicate that steady state gas jet diffusion flames existed in zero gravity but they were geometrically quite different than their normal-gravity counterparts. Methane-air flames were found to be approximately 50 percent longer and wider in zero gravity than in normal gravity.
Author: Thomas H. Cochran
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
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Author: Ho-Nam Bang
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ISBN:
Category : Flame
Languages : en
Pages : 128
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Author: Raymond Victor Kaser
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Category : Combustion
Languages : en
Pages : 308
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Author: Nancy Papanikolaou
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Category : Combustion
Languages : en
Pages :
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Author: Kenneth Ray Stephenson
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ISBN:
Category : Flame
Languages : en
Pages : 76
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![Forced and Natural Convection in Laminar-Jet Diffusion Flames. [normal-Gravity, Inverted-Gravity and Zero-Gravity Flames] PDF](https://books.google.com/books/content/images/frontcover/QXyZuQEACAAJ?fife=w80-h100)
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723397417
Category :
Languages : en
Pages : 26
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An experimental investigation was conducted on methane, laminar-jet, diffusion flames with coaxial, forced-air flow to examine flame shapes in zero-gravity and in situations where buoyancy aids (normal-gravity flames) or hinders (inverted-gravity flames) the flow velocities. Fuel nozzles ranged in size from 0.051 to 0.305 cm inside radius, while the coaxial, convergent, air nozzle had a 1.4 cm inside radius at the fuel exit plane. Fuel flows ranged from 1.55 to 10.3 cu cm/sec and air flows from 0 to 597 cu cm/sec. A computer program developed under a previous government contract was used to calculate the characteristic dimensions of normal and zero-gravity flames only. The results include a comparison between the experimental data and the computed axial flame lengths for normal gravity and zero gravity which showed good agreement. Inverted-gravity flame width was correlated with the ratio of fuel nozzle radius to average fuel velocity. Flame extinguishment upon entry into weightlessness was studied, and it was found that relatively low forced-air velocities (approximately 10 cm/sec) are sufficient to sustain methane flame combustion in zero gravity. Flame color is also discussed. Haggard, J. B., Jr. Glenn Research Center NASA-TP-1841, E-487 RTOP 506-55-22
Author: Kezhong Jia
Publisher:
ISBN:
Category :
Languages : en
Pages : 268
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Author:
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Category :
Languages : en
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