Results 281 to 290 of about 13,168,725 (351)

Anomalous lewis number effects in tribrachial flames

Symposium (International) on Combustion, 1989
Tribrachial (three-armed) flames are generated when a premixed flame propagates into a nonuniform mixture, and consist of a fuel-rich branch joined to a fuel-lean branch, with a diffusion flame trailing from the junction (the stoichiometric point). They are important in the context of ‘laminar flamelet’ models of turbulent non-premixed flames.
J. Buckmaster, M. Matalon
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Diffusion Flame Calculations for Nonunity Lewis Number

Combustion Science and Technology, 1982
Abstract Numerical solutions for the problem of a free convection, diffusion flame burning on a vertical fuel surface have been obtained for Lewis number from 0·05 to 10. Results are presented for the effect of Lewis number on the temperature and concentration profiles and on the burning rate.
M. SIBULKIN, S. F. MALARY
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Pulsating and hydrodynamic instabilities at large Lewis numbers

Combustion and Flame, 2006
The dynamic behavior of freely propagating premixed flames with large Lewis numbers was computationally simulated using a sixth-order central difference scheme and nonreflective boundary conditions. Results in the linear stage of the instability growth show that the growth rate dramatically decreases with increasing Lewis number and that the large ...
Jiao Yuan, Yiguang Ju, Chung K. Law
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Problem of determining the lewis number

Journal of engineering physics, 1981
Theoretical relations are derived for determining the Lewis number with the super-heat of water vapor taken into account.
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Lewis Carroll's Amazing Number-Guessing Game

The College Mathematics Journal, 2002
Richard McCoart's (RmcCoart@ oyola.edu) main area of I' ri'? -~.. .. . . ~ Iinteret is graph theory. He translated the first book on 1iI I: ::: =::= -i graph theory, which appeared in 1936 in German. The I .i , . translation was published fairly recently by Birkhauser * [n "l ae a th t Publishers of Boston, Basel, and Berlin.
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Deriving relations for the Lewis number

Journal of Engineering Physics, 1978
Experimentally confirmed theoretical relations are obtained for the ratio of the coefficients of heat and mass transfer (the Lewis number); an example of air and water in contact is given.
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Prediction of temperature behavior of a lead–acid battery by means of Lewis number

Electrochimica Acta, 2018
Temperature rise is one of the main problems of battery applications. Thus, preventing the temperature rise in lead–acid batteries is an important research topic.
Tayyeb Nazghelichi, F. Torabi, Vahid Esfahanian   +2 more
semanticscholar   +1 more source

Analysis of Lewis number effects in flame spread

International Journal of Heat and Mass Transfer, 1993
De Ris's formulation of the problem of flame spread over thin and thick solid fuel surfaces is extended to include the influence of nonunity Lewis numbers of oxidant and fuel vapors. A zeroth order formula for the flame spread velocity is deduced. To this order of approximation, the Lewis number of the oxidant affects the spread rate only through its ...
J.B. Greenberg, P.D. Ronney
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Liquid-fuel burning with nonunitary Lewis number

Combustion and Flame, 2007
An analysis is presented for liquid-fuel vaporization and burning with nonunitary Lewis number (i.e., nonsimilar heat and mass diffusion) in a general geometrical situation, e.g., a dense spray. Variable transport properties are considered and only Stefan flow is allowed.
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Extinction of diffusion flames with nonunity Lewis numbers

Journal of Engineering Mathematics, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kim, J. S., Williams, F. A.
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