碩士 / 國立成功大學 / 機械工程學系碩博士班 / 97 / Abstract
This study presents the numerical simulation of optimum pin-fin heat sink with air impinging cooling by using Taguchi method. orthogonal array is selected as a plan for the four design-parameters with three levels.The governing equations are discretized by using control-volume-based-finite -difference method with power-law scheme on an orthogonal non-uniform staggered grid. The coupling of the velocity and the pressure terms of momentum equations are solved by SIMPLEC algorithm. The two-equations turbulence model is employed to describe the turbulent structure and behavior.
The parameters studied include Reynolds number (Re =10000~25000), inter-fin spacing a(2mm~6.4mm), inter-fin spacing b(2mm~6.4mm)，inter-fin spacing c(2mm~6.4mm).The objective of this study is to examine the effects of the fin spacings and fin height on the thermal resistance and then find the optimum group by using Taguchi method. It’s found that the fin spacings from center to edge of the heat sink should be gradually extended, and the fin’s height is the longer the better. Then, the optimum group is . In addition, the ranks of the design parameters on thermal resistance from maximum to minimum are spacing a, fin height, spacing c, spacing b.
Keywords：impinging cooling, optimum, pin-fin heat sink, Taguchi method, turbulence
| Identifer | oai:union.ndltd.org:TW/097NCKU5490093 |
| Date | January 2009 |
| Creators | Hsin-Ti Hsu, 徐新迪 |
| Contributors | Yang, Yue-Tzu, 楊玉姿 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 86 |
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