Velocity-Pressure Gradient Correlation in Reactive Turbulent Flows

The paper develops and tests a three-dimensional model of the correlation between velocity and pressure gradient which is of interest in stress equation modeling of turbulent flows. In particular, the correlation is developed with reference to variable density reacting flows, for which prior models,...

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Bibliographic Details
Published in:Combustion science and technology 1983-07, Vol.32 (5-6), p.289-305
Main Author: STRAHLE, WARREN C.
Format: Article
Language:English
Subjects:
Applied sciences
Combustion. Flame
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Theoretical studies. Data and constants. Metering
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Summary:The paper develops and tests a three-dimensional model of the correlation between velocity and pressure gradient which is of interest in stress equation modeling of turbulent flows. In particular, the correlation is developed with reference to variable density reacting flows, for which prior models, based on constant density turbulence, have some shortcomings. The model is tested against data on H 2 -air diffusion flames, using a form of the developed correlation appropriate for k-ϵ modeling of the flame. It is found that inclusion of the correlation is imperative for satisfactory predictions of some of the flame features and the current model is satisfactory for such predictions.
ISSN:0010-2202
1563-521X
DOI:10.1080/00102208308923663