Numerical and experimental investigations of a twisted copper heat exchanger with triply periodic minimal surfaces

IF 6.4 2区工程技术 Q1 MECHANICS

International Communications in Heat and Mass Transfer Pub Date : 2025-05-19 DOI:10.1016/j.icheatmasstransfer.2025.109099

Shiming Gao , Haoming Mo , Junjie Yao , Shuo Qu , Junhao Ding , Xu Song

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引用次数: 0

Abstract

The heat exchanger (HE) is one of the key components of the thermal management system, ensuring the safe and effective operation of other equipment. With the advancement of additive manufacturing, Triply Periodic Minimal Surfaces (TPMS) heat exchangers have recently emerged due to their excellent thermal properties. However, current studies on the TPMS heat exchangers are still mostly limited to ordinary regular lattice structures. In this paper, heat exchangers with twisted TPMS structures are proposed and compared. The simulation results indicate that the temperature distribution in each HE presents an eccentric distribution. The distribution intensity of eccentric flows changes along with the variation of twisted angle. The eccentric flow of D_0PI HE is mainly concentrated on both sides, while the eccentric flow of D_1PI and D_2PI HEs is concentrated in the center. The experimental results show the D_2PI HE has the highest effectiveness, lowest thermal resistance, but largest pressure drop. In terms of Colburn factor

j_{hot}

and performance evaluation criterion

j_{hot} / {f_{hot}}^{(1 / 3)}

, D_1PI outperforms the other two HEs. This work aims to provide useful guidance for the design of the next-generation TPMS heat exchangers with geometry transformation freedom.

查看原文本刊更多论文

三周期最小曲面扭铜换热器的数值与实验研究

换热器（HE）是热管理系统的关键部件之一，保证其他设备的安全有效运行。随着增材制造技术的进步，三周期最小表面（TPMS）换热器因其优异的热性能而近年来得到了广泛的应用。然而，目前对TPMS换热器的研究大多局限于普通的规则晶格结构。本文提出并比较了扭曲TPMS结构的换热器。仿真结果表明，各HE内的温度分布呈偏心分布。偏心流的分布强度随扭转角的变化而变化。D_0PI HE的偏心流动主要集中在两侧，而D_1PI和D_2PI HE的偏心流动主要集中在中心。实验结果表明，D_2PI HE的效率最高，热阻最小，但压降最大。在Colburn因子jhot和性能评价标准jhot/fhot1/3方面，D_1PI优于其他两个he。本工作旨在为具有几何变换自由的下一代TPMS换热器的设计提供有益的指导。

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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来源期刊

International Communications in Heat and Mass Transfer 工程技术-力学

CiteScore

11.00

自引率

10.00%

发文量

648

审稿时长

32 days

期刊介绍： International Communications in Heat and Mass Transfer serves as a world forum for the rapid dissemination of new ideas, new measurement techniques, preliminary findings of ongoing investigations, discussions, and criticisms in the field of heat and mass transfer. Two types of manuscript will be considered for publication: communications (short reports of new work or discussions of work which has already been published) and summaries (abstracts of reports, theses or manuscripts which are too long for publication in full). Together with its companion publication, International Journal of Heat and Mass Transfer, with which it shares the same Board of Editors, this journal is read by research workers and engineers throughout the world.