الفهرس 
Forced Convection Air-Cooling of Protruding Heat SourcesOnly 14 pages are availabe for public view
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Abstract
The purpose of the present research is to numerically and experimentally determine heat transfer phenomena associated with using a slot jet to cool a linear array of protruding discrete heat sources. In this study, the heat transfer characteristics associated with cooling an in-line array of discrete protruding heat sources in a channel will be studied by using a double slot air jets. Numerical and experimental studies were carried out for different values of jet Reynolds number, aspect ratio, the jet inclination angles (θ), and the position ratio (X/Lt). The effects of variation of these parameters were studied. The investigated range was,100 to 1600 for Ryenolds number, 0.25,0.33, and 0.5 for aspect ratio,from 1500 W/m2 to 3000 W/m2 for the heat flux, from 0.14 to 1 for the position ratio, and from 0o to 80o for the air jet inclination angle. Results showed that all of these parameters have a strong effect on heat transfer process.It was found that the best aspect ratio at which a low protruding heat sources temperature occurs at aspect raio of (a/H= 0.33). The maximum Nusselt number occurs at position ratio of (X/Lt =0.43), and inclination angle (θ=20 ).The best uniform temperature is at position ratio of (X/Lt =0.57), and inclination angle range from 20 to 0 inall using of double jets is a good technique to obtain a uniform temperature distribution for the electronic circuit components.