Experimental Study on Flow and Heat Transfer Characteristics in Triply Periodic Minimal Surface Channels

WANG Jinghan; SUN Kai; YANG Zhixin; CHENG Zhilong; ZENG Min; WANG Qiuwang

doi:10.7652/xjtuxb202511012

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Experimental Study on Flow and Heat Transfer Characteristics in Triply Periodic Minimal Surface Channels

更新时间：2025-11-11

- Experimental Study on Flow and Heat Transfer Characteristics in Triply Periodic Minimal Surface Channels
- Journal of Xi'an Jiaotong University Vol. 59, Issue 11, Pages: 125-132(2025)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202511012
  CLC： TK124
- Received：26 March 2025，
  
  Published：10 November 2025
- 稿件说明：
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WANG Jinghan, SUN Kai, YANG Zhixin, et al. Experimental Study on Flow and Heat Transfer Characteristics in Triply Periodic Minimal Surface Channels[J]. Journal of Xi'an Jiaotong University, 2025, 59(11): 125-132.
DOI：

WANG Jinghan, SUN Kai, YANG Zhixin, et al. Experimental Study on Flow and Heat Transfer Characteristics in Triply Periodic Minimal Surface Channels[J]. Journal of Xi'an Jiaotong University, 2025, 59(11): 125-132. DOI： 10.7652/xjtuxb202511012.

摘要

为揭示三周期极小曲面通道内的流动换热特性，基于瞬态单吹法原理搭建实验装置，系统测量并分析了空气在I-WP和Primitive通道中的流动与换热性能，探讨了胞元类型、孔隙率（

）及雷诺数（

）对流动换热性能的影响。结果表明：Primitive通道的阻力系数随孔隙率增加而降低，且孔隙率对阻力的影响随

增大而减弱，当孔隙率由0.30增加至0.40时，在

=80和

=450下阻力系数分别降低约37%和15%。相比之下，I-WP通道的阻力系数随孔隙率增加而升高，且由于孔隙率变化对流动扰动的影响有限，其换热性能变化较小。以Colburn换热因子与摩擦阻力系数比值作为流动换热综合性能评价指标，随着孔隙率增加，Primitive通道的综合性能小幅提升，I-WP通道则明显下降。当

≤0.35时，I-WP通道综合性能优于Primitive通道；当

=0.40时，两者综合性能接近。

Abstract

To reveal the flow and heat transfer characteristics in triply periodicminimal surface channels

this study constructs an experimental setup based on the transient single-blow method. The flow and heat transfer performance of air in I-WP and Primitive channels are systematically measured and analyzed

and the effects of cell type

porosity (

)

and Reynolds number (

) on the flow and heat transfer performance are investigated. The results show that the friction factor of the Primitive channel decreases with increasing porosity

and the influence of porosity on flow resistance weakens as

increases. When the porosity increases from 0.30 to 0.40

the friction factor decreases by approximately 37% at

=80 and by 15% at

=450.In contrast

the friction factor of the I-WP channel increases with porosity

while its heat transfer performance exhibits onlyminor variations due to the limited impact of porosity changes on flow disturbances. Using the ratio of the Colburn heat transfer factor to the friction factor as a comprehensive performance evaluation metric

the Primitive channel shows a slight improvement in overall performance with increasing porosity

whereas the I-WP channel exhibits a significant decline. When

≤0.35

the I-WP channel outperforms the Primitive channel in comprehensive performance；however

when

=0.40

their performance becomes comparable.

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references

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