Numerical Study on Microscale Flow in Macro Geometries

机译：宏观几何中微观尺度流动的数值研究

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The increasing heat dissipation in electronic devices is a major driver of the widely-researched microchannel heat sink. Literature shows that conventional momentum and energy equations can be used to predict the single-phase microscale flow. The present study aimed to investigate the flow behaviors and convective heat transfer characteristics of single-phase microscale flow in macro geometries using conventional governing equations solved by finite element methods. Numerical solutions showed that the flow rate and channel size had the largest effect on the heat transfer coefficient and pressure drop, respectively. Moreover, the microscale heat transfer process can be enhanced as much as 25% by choosing a suitable channel profile.

机译：电子设备中不断增加的散热是广泛研究的微通道散热器的主要驱动力。文献表明，常规的动量和能量方程可用于预测单相微尺度流。本研究旨在使用有限元方法求解的常规控制方程研究宏观几何中单相微尺度流的流动行为和对流传热特性。数值解表明，流速和通道尺寸分别对传热系数和压降影响最大。此外，通过选择合适的通道轮廓，可以将微尺度的传热过程提高25％。

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来源
《Mathematical methods for information science and economics》|2012年|99-104|共6页
会议地点 Montreux(CH)
作者
KIAN SHING KONG; KIM TIOW OOI;
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作者单位

School of Mechanical and Aerospace Engineering Nanyang Technological University 50 Nanyang Avenue SINGAPORE;

School of Mechanical and Aerospace Engineering Nanyang Technological University 50 Nanyang Avenue SINGAPORE;

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会议组织
原文格式 PDF
正文语种 eng
中图分类
关键词
Finite element; microchannel; single-phase; enhanced; heat transfer; pressure drop;

机译：有限元;微通道单相增强传播热量;压力下降;

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1. A numerical and experimental investigation on microscale heat transfer effect in the combined entry region in macro geometries [J] . Kian Shing Kong, Kim Tiow Ooi International Journal of Thermal Sciences . 2013,第Null期

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2. Scale-inspired enhanced microscale heat transfer in macro geometry [J] . Aik Ling Goh, Kim Tiow Ooi International Journal of Heat and Mass Transfer . 2017,第octa期

机译：宏观几何中受尺度启发的增强的微观尺度传热
3. Heat Transfer Augmentation of Parallel Flows by Means of Electric Conduction Phenomenon in Macro- and Microscales [J] . Miad Yazdani, Jamal Seyed-Yagoobi Journal of Heat Transfer . 2010,第6期

机译：宏观和微观电导现象对平行流传热的增强
4. Numerical Study on Microscale Flow in Macro Geometries [C] . KIAN SHING KONG, KIM TIOW OOI WSEAS International Conference on Applied Mathematics . 2013

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Numerical Study on Microscale Flow in Macro Geometries

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