横向导向的光纤阵列的动态下降透
Gene Patrick S Rible1, Michael A Spinazzola1, Robert E Jones1
1Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States.
Langmuir : the ACS journal of surfaces and colloids
|June 12, 2024
概括
灵感来自哺乳动物毛皮的纤维阵列,通过限制液体透,起到有效的雨障碍作用. 较高的纤维密度减少了入,无论撞击速度如何,都能提供保护.
科学领域:
- 流体动力学 流体动力学
- 材料科学 材料科学 材料科学
- 生物物理学的生物物理.
背景情况:
- 哺乳动物的毛皮外套提供了天然的抗水性.
- 了解纤维结构中的液体-固体相互作用对于设计保护材料至关重要.
研究的目的:
- 为了研究落对光纤阵列影响的动态.
- 确定纤维特性如何影响液体透和传播.
- 探索光纤阵列作为雨水屏障的潜力.
主要方法:
- 在3D打印的纤维阵列上对落影响的实验研究.
- 包装密度的系统变化,纤维对齐,横截面和可湿度.
- 图像分析以量化透深度和湿宽度.
主要成果:
- 滴滴透受到冲击韦伯数和阵列孔隙性的影响.
- 渐变的纤维显著减少透,特别是疏水的纤维.
- 增加的纤维密度导致独立于撞击速度的穿透,形成雨水屏障.
- 水友性促进横向扩散并抑制碎片化,增强对动态透的抵抗力.
结论:
- 纤维阵列可以作为有效的雨水屏障,密度是关键因素.
- 湿度影响透动力学,水友纤维抵御动态冲击,而疏水纤维抵御.
- 滴量透变得独立于临界韦伯数以上的湿度.
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