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Development of a second order closure model for computation of turbulent diffusion flamesA typical eddy box model for the second-order closure of turbulent, multispecies, reacting flows developed. The model structure was quite general and was valid for an arbitrary number of species. For the case of a reaction involving three species, the nine model parameters were determined from equations for nine independent first- and second-order correlations. The model enabled calculation of any higher-order correlation involving mass fractions, temperatures, and reaction rates in terms of first- and second-order correlations. Model predictions for the reaction rate were in very good agreement with exact solutions of the reaction rate equations for a number of assumed flow distributions.
Document ID
19740027207
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Varma, A. K. (Aeronautical Research Associates of Princeton, Inc. Princeton, NJ, United States)
Donaldson, C. D. (Aeronautical Research Associates of Princeton, Inc. Princeton, NJ, United States)
Date Acquired
September 3, 2013
Publication Date
June 1, 1974
Subject Category
Thermodynamics And Combustion
Report/Patent Number
NASA-CR-132524
ARAP-222
Accession Number
74N35320
Funding Number(s)
CONTRACT_GRANT: NAS1-12412
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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