Experimental Investigation Of Laminar Gas Jet Diffusion Flames In Zero Gravity
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Author | : Thomas H. Cochran |
Publisher | : |
Total Pages | : 38 |
Release | : 1971 |
Genre | : Combustion |
ISBN | : |
Download Experimental Investigation of Laminar Gas Jet Diffusion Flames in Zero Gravity Book in PDF, Epub and Kindle
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 | : |
Total Pages | : 26 |
Release | : 1972 |
Genre | : |
ISBN | : |
Download Experimental Investigation of Laminar Gas Jet Diffusion Flames in Zero Gravity Book in PDF, Epub and Kindle
Author | : Thomas H. Cochran |
Publisher | : |
Total Pages | : 34 |
Release | : 1970 |
Genre | : Space vehicles |
ISBN | : |
Download Effects of Gravity on Laminar Gas Jet Diffusion Flames Book in PDF, Epub and Kindle
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 2.2-Second Zero-Gravity Facility. The photographic results indicated that a sudden decrease in gravity level from 1 to 0 effected an immediate reduction in the length of the flame. Continued time in zero gravity resulted in the flame expanding away from the burner until extinguishment appeared to occur. Nondimensionalization of the governing flow equation yielded the parameters used to correlate the buoyancy effects.
Author | : National Aeronautics and Space Administration (NASA) |
Publisher | : Createspace Independent Publishing Platform |
Total Pages | : 26 |
Release | : 2018-07-20 |
Genre | : |
ISBN | : 9781723397417 |
Download Forced and Natural Convection in Laminar-Jet Diffusion Flames. [normal-Gravity, Inverted-Gravity and Zero-Gravity Flames] Book in PDF, Epub and Kindle
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 | : Thomas H. Cochran |
Publisher | : |
Total Pages | : 24 |
Release | : 1970 |
Genre | : Space vehicles |
ISBN | : |
Download Effects of Gravity on Laminar Gas Jet Diffusion Flames Book in PDF, Epub and Kindle
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 2.2-Second Zero-Gravity Facility. The photographic results indicated that a sudden decrease in gravity level from 1 to 0 effected an immediate reduction in the length of the flame. Continued time in zero gravity resulted in the flame expanding away from the burner until extinguishment appeared to occur. Nondimensionalization of the governing flow equation yielded the parameters used to correlate the buoyancy effects.
Author | : Thomas H. Cochran |
Publisher | : |
Total Pages | : 42 |
Release | : 1970* |
Genre | : Combustion |
ISBN | : |
Download An Investigation of Gravity Effects on Laminar Gas Jet Diffusion Flames Book in PDF, Epub and Kindle
Author | : Gung Chen |
Publisher | : |
Total Pages | : 268 |
Release | : 1995 |
Genre | : |
ISBN | : |
Download An Experimental Investigation on Laminar Diffusion Flames of Monodisperse Fuel Sprays Book in PDF, Epub and Kindle
Author | : Brandon J. Ryan |
Publisher | : |
Total Pages | : |
Release | : 2003 |
Genre | : |
ISBN | : |
Download Experimental Investigation of Flame Stability of Enclosed Laminar Jet Diffusion Flame Book in PDF, Epub and Kindle
Author | : United States. Superintendent of Documents |
Publisher | : |
Total Pages | : 1466 |
Release | : 1976 |
Genre | : United States |
ISBN | : |
Download Monthly Catalog of United States Government Publications, Cumulative Index Book in PDF, Epub and Kindle
Author | : United States. Superintendent of Documents |
Publisher | : |
Total Pages | : 1252 |
Release | : 1973 |
Genre | : Government publications |
ISBN | : |
Download Monthly Catalog, United States Public Documents Book in PDF, Epub and Kindle
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.