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首页> 外文期刊>International Journal of Heat and Mass Transfer >An experimentally verified numerical model of finned heat pipes in crossflow
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An experimentally verified numerical model of finned heat pipes in crossflow

机译：翅片式热管横流的实验验证数值模型

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摘要

A numerical model is developed to predict heat rates associated with a heat pipe whose finned condenser section is subjected to external forced convection. Multiphase, conjugate heat transfer inside the heat pipe is predicted using a 2-dimensional model, while fluid flow and convection heat transfer within the fin array is described with a coupled 3-dimensional shear stress transport (SST) model. Predictions of local temperatures and overall heat rates are verified experimentally. The SST model is also validated with 3-dimensional direct simulations that show highly time-dependent, 3-dimensional phenomena in the fin array. A previously unreported phenomenon, localized depression of temperatures in the heat pipe wall, is presented and parametric simulations reveal the sensitivity of system performance to the number of fins and the air velocity in the fin array.
机译：开发了一个数值模型来预测与翅片冷凝器部分受到外部强制对流的热管相关的热率。使用二维模型预测热管内部的多相共轭传热，同时使用耦合的3维剪切应力传递（SST）模型描述散热片阵列中的流体流动和对流传热。实验验证了局部温度和总热率的预测。 SST模型还通过3维直接仿真进行了验证，这些仿真显示了鳍阵列中高度依赖时间的3维现象。提出了以前未报告的现象，即热管壁中的局部温度降低，并且参数模拟显示了系统性能对散热片数量和散热片阵列中的风速的敏感性。

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  • 作者

    John R. Stark; Nourouddin Sharifi; Theodore L. Bergman; Amir Faghri;

  • 作者单位

    Department of Mechanical Engineering, The University of Kansas, 1530 W. 15th Street 3138, Lawrence, KS 66045, USA;

    Department of Mechanical Engineering, The University of Kansas, 1530 W. 15th Street 3138, Lawrence, KS 66045, USA;

    Department of Mechanical Engineering, The University of Kansas, 1530 W. 15th Street 3138, Lawrence, KS 66045, USA;

    Department of Mechanical Engineering, The University of Connecticut, 191 Auditorium Road, Storrs, CT 06269-3139, USA;

  • 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
  • 关键词

    Heat pipe; Numerical modeling; Fins; Fin arrays;

    机译：热管;数值建模;鳍片鳍片阵列;

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