Numerical Study of Thermal and Flow Characteristics of Piezoelectric Fan Enclose Heat Sink Fins in Rectangular Channel / 矩形流道裝置壓電風扇於散熱鰭片間之熱流特性分析

碩士 / 國立臺北科技大學 / 車輛工程系所 / 102 / The converse piezoelectric effects of piezoelectric material make piezoelectric chip bringing high frequency damping, plastic fan flapping fluid around bringing convection, and then achieve heat dissipation. This study discuss that piezoelectric fan enclose heat sink fins let cryogenic fluid into heat sink efficacious and heat is took away by heat sink fins. Using fluid dynamic software, ANSYS CFD/Fluent, calculate transient flow field in different parameters, it includes the distance between piezoelectric fan and heat sink(Lg), fin number(n), fin height(Hf), fin gap(G). The performance of standard depends on Nusselt number(Nu) and thermal resistance(Rth) by solver. As the result, when piezoelectric fan replace on front of heat sink, the heat dissipation is useful. According to fin height raised and heat dissipation area increased enhances cooling performance effective. Whether the heat sink confined depends on fin number and piezoelectric fan position.

Identiferoai:union.ndltd.org:TW/102TIT05162007
Date January 2014
CreatorsJyun-Ji Lu, 盧俊吉
Contributors蔡國隆
Source SetsNational Digital Library of Theses and Dissertations in Taiwan
Languagezh-TW
Detected LanguageEnglish
Type學位論文 ; thesis
Format86

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