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研究3D打印TPMS和格子孔状结构的实验和计算流体动力学

Guru Varun Penubarthi¹, Kishore Bhaskar Suresh Babu^2,3, Senthilkumar Sundararaj³

¹Department of Mechanical and Electro-Mechanical Engineering, Tamkang University, New Taipei City 25137, Taiwan.

|August 28, 2025

概括

这项研究探讨了流体动力学的3D打印孔状结构. 八晶格设计显示出优异的透性,而单元细胞大小显著影响了毛细血管的性能.

科学领域:

材料科学
流体动力学
添加剂制造

背景情况:

立体石刻 (SLA) 3D打印使复杂的多孔结构成为可能.
三次周期最小面 (TPMS) 为流体应用提供独特的几何形状.
了解湿行为和毛细血管性能对于优化3D打印材料中的流体管理至关重要.

研究的目的:

研究各种SLA3D打印TPMS晶格设计的毛细血管性能和湿行为.
评估这些结构在流体动力学应用中的透性.
确定单元细胞大小和设计对流体运输特性的影响.

主要方法:

高速成像分析了水滴相互作用 (透,扩散,接触角度) 与16μL水滴.
对TPMS - 甲状腺,钻石,八和异构结构进行了数值模拟.
使用脱离离子水的重量-时间 (w-t) 测量来评估毛细血管的性能.
在使用2毫米立方单位电池的结构上测试了透性.

主要成果:

接触角度在设计上有所不同; 伊斯特鲁斯和奥克特呈现出更高的角度.
TPMS-甲状腺显示了足够的毛细血管性能.
透度排名:八度 > 异流 > 钻石 > TPMS-甲状腺
较小的单元细胞 (2毫米3) 显示有毛细血管效应,但也带来了打印能力的挑战.

结论:

在经过测试的结构中,八格设计提供了最佳的透性.
单元细胞大小,光束厚度和滴滴定位对于优化流体动力学至关重要.
这些发现适用于使用3D打印的多孔材料冷却,过和流体管理.

关键词:

添加剂制造毛细血管的性能接触角度通过性三重周期最小面 (TPMS)

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