Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Non-Premixed Turbulent Jet Flames.
Author Dahm, W. J. A. ; Dimotakis, P. E. ; Broadwell., J. E. ;
CORP Author California Inst. of Tech., Pasadena.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.;Air Force Office of Scientific Research, Bolling AFB, DC.
Publisher c1983
Year Published 1983
Report Number EPA-68-02-3633; EPA/600/D-89/261;
Stock Number PB90-143009
Additional Subjects Flames ; Jet mixing flow ; Turbulent flow ; Jet flow ; Chemical reactions ; Reynolds number ; Pollution ; Combustion ; Test facilities ; Fluorescence ; Lasers ; Mathematical models ; Experimental data ;
Library Call Number Additional Info Location Last
NTIS  PB90-143009 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/15/1990
Collation 9p
The paper, part of a general investigation of mixing and chemical reaction in turbulent jets, concerns the length of non-premixed turbulent jet flames in a stationary environment. Experimental results for the turbulent flame length of chemically reacting jets in water show both increasing and decreasing mean flame length with increasing Reynolds number in the transition regime between laminar and fully developed turbulent flow, depending on the equivalence ratio for the reaction. The asymptotic limit of this transition regime, at which the flame attains its Reynolds-number-independent length, is established at Reynolds number 3000. Above this limit, the mean flame length depends linearly on the reaction equivalence ratio. Fluctuations in the flame length are found to be nearly periodic and approximately equal to the local jet diameter at the flame tip for all equivalence ratios and all Reynolds numbers above 3000, indicating that turbulent flame length is inherently unsteady at the largest local scale in the flow.