3D打印纸张和固体的流量和热传递特征三层周期性最小表面多孔结构多孔结构
Jiajie Hu1, Wei Xu1, Huixin Liang2
1Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing, School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing, 210023, China.
Scientific reports
|August 10, 2025
概括
固体三重周期性最小表面 (TPMS) 的性能优于热交换器的板式TPMS和. 固体钻石TPMS提供优越的传热,特别是在更高的空气流速,使其成为传统结构的可行替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 热力工程是热力工程中的一个.
- 计算流体动力学的流体动力学.
背景情况:
- 三次周期最小面 (TPMS) 越来越多地用于热工程,因为它们的几何性质.
- 板式TPMS提供良好的传热,但由于断开的表面而遭受高压下降.
- 了解不同TPMS结构的热性能对于优化换热器设计至关重要.
研究的目的:
- 为了研究和比较各种TPMS结构的热传输性能 (叶子陀螺,固体陀螺,固体原始,固体钻石) 与传统的结构.
- 评估空气流速对不同TPMS配置的热性能的影响.
- 为了确定固体TPMS的适用性,以取代热交换器中的结构.
主要方法:
- 四个TPMS结构的设计和3D打印:板体Gyroid,固体Gyroid,固体Primitive和固体钻石.
- 计算流体动力学 (CFD) 模拟来分析传热特性.
- 在不同的空气流条件下对CFD结果的实验验证.
主要成果:
- 在超低空气流下,结构显示出比TPMS更好的散热能力.
- 固体TPMS结构的性能一般优于板式TPMS和状结构.
- 固体Gyroid在速度<4m/s时表现最好,而固体钻石在更高的速度时表现出色.
- 与固体原始和固体陀螺相比,固体钻石的传热系数和努塞尔特数显著更高.
结论:
- 固体TPMS结构与板式TPMS和传统相比,表现出优越的传热性能,特别是在更高的流速下.
- 固体钻石TPMS被认为是用于热交换应用的高效结构.
- 该研究支持使用固体TPMS作为热交换器中翅膀结构的替代品,为未来的设计优化提供基础.
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