الفهرس 
INTRODUCTION AND LITERATURE REVIEWOnly 14 pages are availabe for public view
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Abstract
The present study aimed to examine numerically the thermal and flow fields of a vented enclosure with multiple heat sources. It investigates the mixed convection inside the enclosure taking into consideration the radiation exchange among the heaters and the walls.
In chapter one, a literature review on the studies that investigated numerically and experimentally the heat transfer in ventilated enclosure by convection and/or by radiation with single or multiple heat sources.
In the second chapter, the models used were explained including the main differential equations of the flow and Energy. In this study. k-E RNG Model was adapted to simulate the turbulence and surface to surface radiation model was adapted to simulate the radiative heat transfer. Also, Boussinesq approximation was adapted to simulate the buoyancy force.
In chapter three, a validation study was conducted to validate the present model of simulation by comparing the present results with an experimental and numerical study by T.V. Radhakrishnan, et al. [1].
In Chapter four, parametric studies including variation of different parameters intended to evaluate their effects on the thermal and flow fields. Reynolds number was varied from 100 to 10,000, the heat generation inside the heat sources was changed from 100,000 to 300,000 W/m3, the emissivity of heaters’ walls were changed from 0 to 1, and the inlet angle of the flow was varied from 0 to 55° .
In the last chapter, conclusions including the optimum angle at each Reynolds number at which, the minimum overall average temperature of all the heaters were found, and future recommendations were stated.