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Mixing in the interaction zone of two free jets
Author(s) -
Becker H. A.,
Booth B. D.
Publication year - 1975
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.690210517
Subject(s) - mixing (physics) , nozzle , jet (fluid) , mechanics , covariance , covariance function , chemistry , measure (data warehouse) , field (mathematics) , physics , thermodynamics , mathematics , statistics , quantum mechanics , database , computer science , pure mathematics
Mixing in the interaction zone of two round free jets with nozzle axes intersecting at half‐angles of 15, 30, and 45 deg. has been studied by the smoke scattered light technique. The fields of mean concentration and concentration fluctuation intensity were mapped with one jet marked with smoke, the other jet marked, and both jets marked. The correlation function between the concentration fluctuations associated with fluid of the two nozzle streams has been calculated from the results and is an important characteristic of the mixing field and a significant measure of molecular mixedness. A transport equation for the associated covariance function is derived, and the special features of the mathematical modeling problem for this class of mixing process are discussed. The implications of the results for processes involving chemical reactions are examined.