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Measurements in Turbulent Jet Diffusion Flames
COMBUSTION AND FLAME 20, 291 (1973)
291
BRIEF COMMUNICATION
Measurements in Turbulent Jet Diffusion Flames J. H. KENT* and R. W. BILGER Departmem of M.~!'chanical Engineering, The University of Sydney. N.S. W. 2006, Australia
In a recent paper [I] some of the measurements that have been made on the turbulent diffusion flame of a hydwgen jet in a coflowing stream of air in this labolatory were presented. Owing to limitations of space only a fraction of the experimental res"lts could be p':esented and to give a reasonable selection of the data some of the results were presented without data points. A comprehensive presentation of the data is now available as an internal report [2) and will be supplied to interested persons on application to the address above. The data is considered to be a significant contribution to the knowledge of turbulent diffusion flames and its comprehensive character should be of great value to theorists in improving the theory of reacting turbulent boundary layer flows. However its sheer bulk involving some thirty-eigl:.t figures and diagrams. together with its semirepetitive and entirely empirical nature make it unsuitable for publicatilon in an archival journal. Accordingiy it has been decided to disseminate the information in this form. The experimental conditions varied over a range of fuel jet to free stream velocity ratios of 10: 1, "'Present Addres!l: AMES Department, University of California, San Dic~;o, California.
8:1,5:1, and 2:1. Measurements include concen· trations of H2 , O 2 , H2 O. and the pollutant species NO, as well as temperature and dynamic head. Initial velocity and turbulence distributions are also presented to completely define the experimental conditions. The report also contains' a discussion of the errors involved for both concentration ,md temperature measurements. Derived data presented include the hydrogen element mass fraction JVH =YH2 + (2.0l6/18.016)YH20 which is of interest as it may be compared with noncombustible jet mixing data and with theoretical analyses of burning jets. -' References 1. Kent, J. G., and Bilger, R. W., Turbulent diffusion flames. Foul'leenrh Symposium (International) on Combustion, to be published. Also, Charles Koning Research Lalbora'~.ory Technic.. 1 Note F-31. Department of Mcch .. n, cal Engineering. The University of
Sydney, Sydney. Australia (l972). 2. Kent, J. H., and Bilger, R. W., Measurements in Turbu· lent Jet Diffusion Flames, Charles Kolling Research Laboratory Tcchnic..1 Note F41. D.::partmcnt of Mechanic;11 Engineering, The University or S}'dncy, Syd-
ney, Australia, (1972).
(Received August, 1972)
Copyright' 1973 by 'The, Combustion Institute Published,by,American Elsevier,Publishing Company. ,rnc.,
291
BRIEF COMMUNICATION
Measurements in Turbulent Jet Diffusion Flames J. H. KENT* and R. W. BILGER Departmem of M.~!'chanical Engineering, The University of Sydney. N.S. W. 2006, Australia
In a recent paper [I] some of the measurements that have been made on the turbulent diffusion flame of a hydwgen jet in a coflowing stream of air in this labolatory were presented. Owing to limitations of space only a fraction of the experimental res"lts could be p':esented and to give a reasonable selection of the data some of the results were presented without data points. A comprehensive presentation of the data is now available as an internal report [2) and will be supplied to interested persons on application to the address above. The data is considered to be a significant contribution to the knowledge of turbulent diffusion flames and its comprehensive character should be of great value to theorists in improving the theory of reacting turbulent boundary layer flows. However its sheer bulk involving some thirty-eigl:.t figures and diagrams. together with its semirepetitive and entirely empirical nature make it unsuitable for publicatilon in an archival journal. Accordingiy it has been decided to disseminate the information in this form. The experimental conditions varied over a range of fuel jet to free stream velocity ratios of 10: 1, "'Present Addres!l: AMES Department, University of California, San Dic~;o, California.
8:1,5:1, and 2:1. Measurements include concen· trations of H2 , O 2 , H2 O. and the pollutant species NO, as well as temperature and dynamic head. Initial velocity and turbulence distributions are also presented to completely define the experimental conditions. The report also contains' a discussion of the errors involved for both concentration ,md temperature measurements. Derived data presented include the hydrogen element mass fraction JVH =YH2 + (2.0l6/18.016)YH20 which is of interest as it may be compared with noncombustible jet mixing data and with theoretical analyses of burning jets. -' References 1. Kent, J. G., and Bilger, R. W., Turbulent diffusion flames. Foul'leenrh Symposium (International) on Combustion, to be published. Also, Charles Koning Research Lalbora'~.ory Technic.. 1 Note F-31. Department of Mcch .. n, cal Engineering. The University of
Sydney, Sydney. Australia (l972). 2. Kent, J. H., and Bilger, R. W., Measurements in Turbu· lent Jet Diffusion Flames, Charles Kolling Research Laboratory Tcchnic..1 Note F41. D.::partmcnt of Mechanic;11 Engineering, The University or S}'dncy, Syd-
ney, Australia, (1972).
(Received August, 1972)
Copyright