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TECHNICAL PAPERS: Combustion and Reactive Flows

On Extension of “Heatline” and “Massline” Concepts to Reacting Flows Through Use of Conserved Scalars

[+] Author and Article Information
Achintya Mukhopadhyay, Xiao Qin, Suresh K. Aggarwal, Ishwar K. Puri

Department of Mechanical Engineering (MC 251) University of Illinois at Chicago, 842 West Taylor Street, Chicago, IL 60607-7022

J. Heat Transfer 124(4), 791-799 (Jul 16, 2002) (9 pages) doi:10.1115/1.1473139 History: Received August 16, 2001; Revised February 28, 2002; Online July 16, 2002
Copyright © 2002 by ASME
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References

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Figures

Grahic Jump Location
Enthalpy lines and streamlines for hot air (394 K, 0.3 m/sec) flowing into cold air (294 K, 0.1 m/sec). The solid lines indicate enthalpy lines while the dashed lines indicate streamlines. The vectors correspond to enthalpy flux (a) normal gravity; and (b) Zero gravity.
Grahic Jump Location
(a) Elemental mass (carbon) lines and enthalpy lines in a planar jet consisting of methane in the inner stream (294 K, 1.0 m/sec) flowing with air (294 K, 0.2 m/sec) in the outer stream at 1-g case. The solid lines indicate enthalpy lines while the dashed lines indicate masslines; and (b) Mixture fraction lines based on elemental mass fraction (carbon) lines and enthalpy for the case depicted in Fig. 2(a). The solid lines indicate enthalpy-based lines while the dashed lines indicate carbon-based lines.
Grahic Jump Location
Streamlines and mixture fraction lines for nonpremixed flame under zero gravity. The dashed lines indicate mixture fraction lines while the solid lines indicate streamlines (a) ξ based on carbon mass fraction, and (b) ξ based on hydrogen mass fraction. The reaction zone (nonpremixed flame) depicted in terms of the heat release rate contours is also shown.
Grahic Jump Location
(a) Mixture fraction lines based on hydrogen and carbon for nonpremixed flame under zero gravity. The dashed lines indicate mixture fraction lines based on carbon while the solid lines indicate mixture fraction lines based on hydrogen. The reaction zone (nonpremixed flame) depicted in terms of the heat release rate contours is also shown; and (b) Mixture fraction lines based on hydrogen and enthalpy for the same. The dashed lines indicate mixture fraction lines based on carbon while the solid lines indicate mixture fraction lines based on enthalpy. The reaction zone (nonpremixed flame) depicted in terms of the heat release rate contours is also shown.
Grahic Jump Location
Temperature contours for nonpremixed flame under normal gravity at different time instants over one period of oscillation
Grahic Jump Location
Mixture fraction lines, based on elemental carbon (dashed lines) and elemental hydrogen (solid lines) for nonpremixed flame under normal gravity at different time instants over one period of oscillation

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