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全球可持续性和可访问性的无喷小便器:通过物理和微分方程设计
Kaveeshan Thurairajah1, Xianyu Mabel Song1, J D Zhu1
1Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Ave W, Waterloo, ON N2L 3G1, Canada.
PNAS nexus
|April 9, 2025
概括
新的尿柜设计通过优化冲击角度,显著减少了尿液反弹. 这项创新提高了公共卫生,降低了清洁成本,并促进了所的可持续性.
科学领域:
- 流体动力学与工程 流体动力学与工程
- 公共卫生和卫生.
- 可持续设计 可持续设计
背景情况:
- 一个多世纪以来,传统的小便器设计没有进化,导致尿液喷 (splashback) 的持续问题.
- 冲击回流造成了不卫生的环境,增加了清洁成本,并给监护人员带来了负担.
- 尿液冲击尿道表面的角度是影响反弹的关键因素.
研究的目的:
- 从理论上预测和实验验证一个关键的冲击角度,以抑制尿液喷射回流.
- 提出和测试新的小便器设计,以实现这一关键的冲击角度.
- 与传统小便器相比,量化新设计所实现的喷减少.
主要方法:
- 基于流体动力学原理,理论上预测回弹行为,重点关注冲击流的冲击角度.
- 通过解决与等边曲线问题相关的微分方程,推导出新的尿道几何.
- 在模拟人类排尿条件下,使用新尿器设计原型的喷减少的实验验证.
主要成果:
- 确定了一个关键的冲击流角,在此下方的冲击回流被显著抑制.
- 新的小便器设计,设计以确保在这个关键角度以下的撞击,证明了大幅减少反弹.
- 实验结果显示,与标准的商业小便器相比,喷射回的减少仅为1.4%.
结论:
- 拟议的尿器设计有效地减少了尿液反,从而改善了卫生状况,减少了清洁要求.
- 广泛采用这些设计,可以大大节省资源,包括清洁化学品和水.
- 这项创新有可能通过提高公共所的可持续性,卫生和可访问性来产生大规模的社会影响.
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