Thermal and hydrodynamic analysis of a fractal microchannel network

Lotfollah Ghodoossi

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Thermal and hydrodynamic analysis of a fractal microchannel network

机译：分形微通道网络的热力和流体动力分析

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摘要

The thermal and hydrodynamic characteristics of a heat sink formed of a fractal channel network are analyzed and compared with those of a heat sink formed of a classical parallel channel network. The analysis covers laminar and turbulent flow regimes in both macro and microchannels, with emphasis on the latter. Reynolds number dependence of the thermal and hydrodynamic characteristics of the channel flow is considered. It is shown that employing a fractal microchannel network in a heat sink does not improve thermal performance relative to that of a heat sink formed of a parallel microchannel network. On the other hand, the hydrodynamic performance of the heat sink with the fractal microchannel network is increased for turbulent flow and decreased for laminar flow relative to that of the heat sink with the parallel microchannel network.

机译：分析了由分形通道网络形成的散热器的热和流体力学特性，并将其与由经典平行通道网络形成的散热器的热和流体力学特性进行了比较。该分析涵盖了宏通道和微通道中的层流和湍流状态，重点是后者。考虑了通道流的热和流体动力学特性的雷诺数依赖性。结果表明，与由平行微通道网络形成的散热器相比，在散热器中采用分形微通道网络不会提高热性能。另一方面，相对于具有平行微通道网络的散热器，具有分形微通道网络的散热器的流体力学性能在湍流中增加，在层流中降低。

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来源
《Energy Conversion & Management》 |2005年第5期|p.771-788|共18页
作者
Lotfollah Ghodoossi;
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作者单位

Mechanical Engineering Department, Istanbul Technical University, 80191 Gumussuyu, Istanbul, Turkey;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类能源与动力工程;
关键词
microChannel; heat sink; fractal network;

机译：微通道;散热片;分形网络;

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2. Numerical and experimental studies on laminar hydrodynamic and thermal characteristics in fractal-like microchannel networks. Part B: Investigations on the performances of pressure drop and heat transfer [J] . Chun-ping Zhang, Yi-fu Lian, Xiang-fei Yu, International Journal of Heat and Mass Transfer . 2013,第nova期

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Thermal and hydrodynamic analysis of a fractal microchannel network

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