TURBULENT FLOW AND HEAT TRANSFER OVER HEATED MODULES FOR A WIDE RANGE OF REYNOLDS NUMBERS AND MODULE SIZE

P. Deb, P. Majumdar
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引用次数: 2

Abstract

Computational prediction of turbulent fluid flow and heat transfer over heated modules of different sizes in a channel is presented. We assume that the channel is formed between two adjacent circuit boards with surface-mounted heat generating modules mounted on a single side of each board. The pressure drop and heat transfer coefficient over each module are calculated for wide range of Reynolds numbers. The standard k - e model has been used for Reynolds number of 7000 or higher while low Reynolds number model has been used for Reynolds range of 2000–6000. A computational study has been carried out in order to develop performance map for the flow and heat transfer characteristics over various sizes of heated modules (B/L = 0.375 ~ 0.625) and for a wide range of Reynolds number (ReH = 2000 ~ 10,000). The correlation of heat transfer coefficient and pressure drop with Reynolds number and dimension of modules has also been established from this study.
在广泛的雷诺数和模块尺寸的加热模块湍流流动和传热
给出了通道内不同尺寸加热模块的紊流流动和换热的计算预测。我们假设通道在两个相邻的电路板之间形成,每个电路板的单侧安装表面安装的发热模块。计算了各模块在较大雷诺数范围内的压降和传热系数。标准k - e模型用于7000或更高的雷诺数,低雷诺数模型用于2000-6000的雷诺数范围。为了绘制不同尺寸(B/L = 0.375 ~ 0.625)和大雷诺数(ReH = 2000 ~ 10000)范围内的流动和传热特性的性能图,进行了计算研究。本文还建立了传热系数和压降与模组雷诺数和尺寸的关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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