NDLI: Direct simulations of chemically reacting turbulent mixing layers, part 2

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Direct simulations of chemically reacting turbulent mixing layers, part 2

Content Provider	NASA Technical Reports Server (NTRS)
Author	McMurtry, Patrick A. Jou, Wen-Huei Riley, James J. Givi, Peyman Metcalfe, Ralph W.
Copyright Year	1988
Description	The results of direct numerical simulations of chemically reacting turbulent mixing layers are presented. This is an extension of earlier work to a more detailed study of previous three dimensional simulations of cold reacting flows plus the development, validation, and use of codes to simulate chemically reacting shear layers with heat release. Additional analysis of earlier simulations showed good agreement with self similarity theory and laboratory data. Simulations with a two dimensional code including the effects of heat release showed that the rate of chemical product formation, the thickness of the mixing layer, and the amount of mass entrained into the layer all decrease with increasing rates of heat release. Subsequent three dimensional simulations showed similar behavior, in agreement with laboratory observations. Baroclinic torques and thermal expansion in the mixing layer were found to produce changes in the flame vortex structure that act to diffuse the pairing vortices, resulting in a net reduction in vorticity. Previously unexplained anomalies observed in the mean velocity profiles of reacting jets and mixing layers were shown to result from vorticity generation by baroclinic torques.
File Size	2760094
Page Count	63
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19880016473
Archival Resource Key	ark:/13960/t16m84q45
Language	English
Publisher Date	1988-06-01
Access Restriction	Open
Subject Keyword	Fluid Mechanics And Heat Transfer Shear Layers Turbulent Flow Digital Simulation Vortices Chemical Reactions Heat of Formation Mixing Layers Fluids Turbulent Mixing Computer Programs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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