JP Journal of Heat and Mass Transfer
Volume 1, Issue 3, Pages 233 - 250
(October 2007)
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NUMERICAL STUDY ON THERMAL-FLUID FLOW CHARACTERISTICS OF DUAL IMPINGING JET IN INCLINED CONFINEMENT CHANNEL
Shuichi Torii (Japan)
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Abstract: This
paper investigates a two-dimensional incompressible thermal-fluid flow of dual
laminar jet impingement with an inclined confinement channel. The governing
equations are discretized by means of a finite-difference technique and are
numerically solved to determine the distributions of velocity vector and fluid
temperature under the appropriate boundary conditions. The Reynolds number (Re),
the velocity ratio (N) at the nozzle tip and the angle (q)
of an inclined confinement upper surface are varied to determine their effects
on both the formation of jet flows and the heat transfer along the flat plate
impinged by the dual jet. It is found from the study that: (i) the isotherms and
the velocity distribution, particularly in the stagnation zone, are
substantially affected by N, and (ii) heat transfer performance over the whole heated plate is
induced with increasing Re and with N
or Re fixed, the effect of q
becomes larger in the downstream region. |
Keywords and phrases: forced convection, impinging jet, dual jets, numerical
analysis, heat transfer. |
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