摘要
以带三角形、矩形、梯形、半圆形壁面粗糙元的矩形微通道为研究对象,通过数值模拟研究分析了粗糙元段压降、努塞尔数以及热源器件接触面上的温度。结果表明,三角形粗糙元间距为0.3mm的矩形微通道内的散热性能较好,与光滑矩形微通道相比,热源器件接触面上的温度可以降低10.41%。
This paper takes on the rectangular micro-channel with triangle, rectangle, trapezoid and hemicycle wall rough element as the research object, which analyses the pressure drop, the nusselt num- ber and the temperature of heat source device contact surface on the period of rough element by numeical simulation. The results show that the triangular rough element spacing of 0. 3mm in rectangular micro- channel heat dissipation performance is good, compares with the smooth rectangular microchannel, the temperature of the heat source device contact surface can be reduced by 10. 41%.
出处
《低温建筑技术》
2016年第2期60-63,共4页
Low Temperature Architecture Technology
基金
基于纳观流固耦合模型的充流碳纳米管动力系统研究(11462010)
关键词
壁面粗糙元
矩形微通道
压降
努塞尔数数
散热性能
Key words：wall rough element
rectangular micro-channel
pressure drop
Nusselt Numbers
heatdissipating performance
