Solid-liquid filtration is a ubiquitous process found in industrial and biological systems. Although implementations vary widely, almost all filtration systems are based on a small set of fundamental separation mechanisms, including sieve, cross-flow, hydrosol, and cyclonic separation. Anatomical studies showed that manta rays have a highly specialized filter-feeding apparatus that does not resemble previously described filtration systems. We examined the fluid flow around the manta filter-feeding apparatus using a combination of physical modeling and computational fluid dynamics. Our results indicate that manta rays use a unique solid-fluid separation mechanism in which direct interception of particles with wing-like structures causes particles to "ricochet" away from the filter pores. This filtration mechanism separates particles smaller than the pore size, allows high flow rates, and resists clogging.

中文翻译：

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蝠ta使用跳弹分离（一种新颖的无堵塞过滤机制）喂食。

固液过滤是工业和生物系统中普遍存在的过程。尽管实现方式千差万别，但几乎所有过滤系统都基于少量基本分离机制，包括筛分，错流，水溶胶和旋风分离。解剖学研究表明，蝠man具有高度专业的过滤器进料装置，与先前所述的过滤系统不同。我们结合了物理建模和计算流体动力学，研究了蝠ta过滤器进料装置周围的流体流动。我们的结果表明，蝠man使用独特的固液分离机制，其中直接截取具有翼状结构的颗粒会导致颗粒“弹跳”离开过滤器孔。