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Flow characteristics of a laminar swirling impinging jet: A numerical study
Author(s) -
Huang B.,
Mujumdar A. S.,
Douglas W. J. M.
Publication year - 1981
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450590403
Subject(s) - laminar flow , mechanics , jet (fluid) , reynolds number , nozzle , suction , flow (mathematics) , bubble , materials science , heat transfer , physics , turbulence , thermodynamics
The primitive Navier‐Stokes equations were solved to predict the flow field induced by a partially confined swirling laminar jet impinging normally on a flat surface. A study is made of the influence of the jet Reynolds number, nozzle‐to‐plate spacing, axial and swirl velocity profiles at nozzle exit plane, size of the confining and impingement plate and uniform suction applied at the plate. An interesting feature of the flow configuration is the predicted development of a recirculation bubble in the stagnation region which influences the heat and mass transfer characteristics. Axial and swirl velocity profiles at entry have dominant influence on the development of the flow field.