Hi'/> An experimental and numerical investigation of chevron fin structures in serpentine minichannel heat sinks
首页> 外文期刊>International Journal of Heat and Mass Transfer >An experimental and numerical investigation of chevron fin structures in serpentine minichannel heat sinks
【24h】

An experimental and numerical investigation of chevron fin structures in serpentine minichannel heat sinks

机译:蛇形微通道散热器中人字形翅片结构的实验和数值研究

获取原文
获取原文并翻译 | 示例
           

摘要

HighlightsA comprehencive experimental and numerical study of chevron fins in serpentine minichannels.Using chevron fins can reduce the pressure drop by 60% and the thermal resistance by 10%.Accurate metamodels can be constructed using Radial Basis Functions.A Pareto front is constructed to trade-off between pressure drop and thermal resistance.AbstractWater-cooled micro/minichannel heat sinks are an important component in managing the temperature of electronic components, particularly where high density of heat rejection is required. This study examines the potential to decrease the thermal resistance and enhance convective heat transfer of a serpentine heat exchanger by introducing chevron fins which create secondary flow paths. This novel design is found to significantly reduce both the pressure drop across the heat exchanger and the total thermal resistance by up to 60% and 10%, respectively, and enhance the average Nusselt number by 15%. A three-dimensional conjugate heat transfer model is developed and validated against experimental measurements, before being used to carry out a parametric study involving the chevron oblique angle, secondary channel width and heat flux. The design of the serpentine minichannel with chevron fins is then optimised in terms of the minichannel width, minichannel number and chevron oblique angle. A 50 point Optimal Latin Hypercubes Design of Experiment is constructed within the design variable space, using a permutation genetic algorithm, and accurate metamodels built using Radial Basis Functions. A Pareto front is constructed which enables designers to explore appropriate compromises between designs with low pressure drop and those with low thermal resistance.
机译: 突出显示 蛇形小通道中V形鳍的全面实验和数值研究。 使用人字形鳍可以将压降降低60%和热阻降低10%。 可以使用径向基函数构造准确的元模型。 构造一个Pareto前沿以进行交易 摘要 水冷微型/微型通道散热器是管理电子组件温度的重要组件,尤其是在散热密度高的地方需要。这项研究探讨了通过引入人字形散热片(形成次级流动路径)来降低蛇形热交换器的热阻并增强对流换热的潜力。发现这种新颖的设计可以显着降低热交换器上的压降和总热阻,分别降低多达60%和10%,并使平均Nusselt数提高15%。在用于进行涉及人字形斜角,次级通道宽度和热通量的参数研究之前,建立了三维共轭传热模型并针对实验测量进行了验证。然后,在小通道宽度,小通道数量和人字形斜角方面优化具有人字形鳍的蛇形小通道的设计。使用置换遗传算法在设计变量空间内构建50点最优拉丁超立方体实验设计,并使用径向基函数构建精确的元模型。构造了Pareto前端,使设计人员能够探索低压降设计和低热阻设计之间的适当折衷。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号