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Numerical investigation of flow structure and mixed convection heat transfer of impinging radial and axial jets

Journal Article · · Numerical Heat Transfer. Part A, Applications; (United States)
; ;  [1];  [2]
  1. Ruhr-Univ. Bochum (Germany). Inst. fuer Thermo- und Fluiddynamik
  2. Indian Inst. of Tech., Kanpur (India). Dept. of Mechanical Engineering
Mixed convection flow fields and heat transfer of partially enclosed axial and radial laminar jets impinging on a heated flat plate have been investigated from the numerical solution of incompressible unsteady Navier-Stokes and energy equations with a Boussinesq approximation. For mixed convection flow at Re = 200, steady flow has not been observed for either the radial or the axial jet. For the smallest Grashof number (Gr = 10,000), periodic solutions have been obtained. With Gr = 40,000 nonsteady nonperiodic (chaotic) flow appears. Free convection may increase that heat transfer by more than 200%.
OSTI ID:
6840646
Journal Information:
Numerical Heat Transfer. Part A, Applications; (United States), Journal Name: Numerical Heat Transfer. Part A, Applications; (United States) Vol. 26:2; ISSN NHAAES; ISSN 1040-7782
Country of Publication:
United States
Language:
English

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