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Mixing in a cross‐flow‐impinging jet reactor
Author(s) -
Nadeau Patrice,
Berk Dimitrios,
Munz Richard J.
Publication year - 2001
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.690470304
Subject(s) - laminar flow , turbulence , mixing (physics) , tracer , mechanics , jet (fluid) , laminar flow reactor , flow (mathematics) , chemistry , computational fluid dynamics , dispersion (optics) , thermodynamics , physics , open channel flow , optics , nuclear physics , quantum mechanics
The mixing of a tracer in a reactor composed of two opposed jets perpendicular to a main stream is studied both experimentally and theoretically. For the experimental conditions, the gas flow was in a transitional state between laminar and turbulent due to the interaction of the mixed streams. Both the measurements and the mathematical model focus on the fluid flow (gas velocity) and the dispersion of a nonreacting species (tracer concentration) injected through one of the reactor streams. Two models are tested against experimental data: a laminar flow model (giving a time‐dependent solution) and a standard k‐ϵ turbulent flow model. These two models give quite different results, both qualitatively and quantitatively. This study demonstrates the importance of the selection of an appropriate mathematical model and computational domain.