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首页> 外文期刊>International Journal of Heat and Mass Transfer >Heat conduction constructal optimization for nonuniform heat generating area based on triangular element
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Heat conduction constructal optimization for nonuniform heat generating area based on triangular element

机译：基于三角单元的非均匀发热区导热构造优化

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摘要

A nonuniform heat generating model in a triangular area is built in this paper. Constructal optimizations of the models with constant and discrete variable cross-sectional high conductivity channels (HCCs) are performed by choosing minimum maximum temperature difference (MTD) as optimization objective. Optimal constructs of the triangular element and triangular first order assembly (TFOA) are obtained, respectively. The results indicate that for the TFOA with constant cross-sectional HCCs, the minimum MTD is reduced by increasing the nonuniform heat generating (NUHG) coefficient p, namely the heat conduction performance (HCP) is better when more heat generation is generated near the heat sink. The HCP of TFOA is also improved by increasing its complexity of internal structure. Furthermore, the minimum MTD of TFOA with discrete variable cross-sectional HCCs is reduced by 12.57% than that with constant cross-section. Therefore, the HCP of TFOA can be further improved by adopting discrete variable cross-sectional structures for the HCCs. The optimization results obtained from numerical calculations can provide some theoretical guidelines for the optimal heat dissipation designs of electronic devices.
机译：本文建立了三角形区域内的非均匀发热模型。通过选择最小最大温差（MTD）作为优化目标，可以对具有恒定和离散可变横截面的高电导率通道（HCC）的模型进行结构优化。分别获得了三角形元素和三角形一阶组件（TFOA）的最佳构造。结果表明，对于具有恒定横截面HCC的TFOA，通过增加非均匀生热（NUHG）系数p来减小最小MTD，即，当在热量附近产生更多热量时，导热性能（HCP）更好。下沉。 TFOA的HCP也通过增加其内部结构的复杂性而得到改善。此外，与恒定横截面相比，具有离散可变横截面HCC的TFOA的最小MTD降低了12.57％。因此，通过为HCC采用离散的可变截面结构，可以进一步改善TFOA的HCP。通过数值计算获得的优化结果可以为电子设备的最佳散热设计提供一些理论指导。

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  • 作者

    Jiang You; Huijun Feng; Lingen Chen; Zhihui Xie;

  • 作者单位

    Institute of Thermal Science and Power Engineering. Naval University of Engineering, Wuhan 430033, PR China Military Key Laboratory for Naval Ship Power Engineering, Naval University of Engineering, Wuhan 430033, PR China College of Power Engineering, Naval University of Engineering, Wuhan 430033, PR China;

    Institute of Thermal Science and Power Engineering. Naval University of Engineering, Wuhan 430033, PR China Military Key Laboratory for Naval Ship Power Engineering, Naval University of Engineering, Wuhan 430033, PR China College of Power Engineering, Naval University of Engineering, Wuhan 430033, PR China;

    Institute of Thermal Science and Power Engineering. Naval University of Engineering, Wuhan 430033, PR China Military Key Laboratory for Naval Ship Power Engineering, Naval University of Engineering, Wuhan 430033, PR China College of Power Engineering, Naval University of Engineering, Wuhan 430033, PR China;

    Institute of Thermal Science and Power Engineering. Naval University of Engineering, Wuhan 430033, PR China Military Key Laboratory for Naval Ship Power Engineering, Naval University of Engineering, Wuhan 430033, PR China College of Power Engineering, Naval University of Engineering, Wuhan 430033, PR China;

  • 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

    Constructal theory; Triangular element; Nonuniform heat generation; Minimum maximum temperature; difference; Generalized thermodynamic optimization;

    机译：建构理论;三角形元素;热量产生不均匀;最低最高温度;区别;广义热力学优化;

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