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Direct numerical simulations of reacting flows in homogeneous turbulence
Author(s) -
Gao Feng,
O'Brien Edward E.
Publication year - 1991
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690371004
Subject(s) - turbulence , closure (psychology) , homogeneous , mechanics , direct numerical simulation , statistical physics , simple (philosophy) , computer simulation , mixing (physics) , physics , thermodynamics , reynolds number , philosophy , epistemology , economics , market economy , quantum mechanics
Abstract A direct numerical simulation (DNS) code has been modified to investigate chemically reacting flows in a stationary, homogeneous turbulence. Single and multispecies reactions as well as complicated reaction schemes such as parallel/consecutive reactions are studied. The effects of some parameters are discussed. The numerical data are used to test a simple first‐order closure model, proposed by Dutta and Tarbell (1989), for turbulent reacting flows. It is shown that the DNS technique provides us with an effective tool to isolate the effects of different parameters and is likely to be useful for proposing and testing closure models.