干旱区生态环境知识资源中心(Arid): Surface morphology enhances deposition efficiency in biomimetic, wind-driven fog collection

Arid

DOI	10.1098/rsif.2020.0038
	Surface morphology enhances deposition efficiency in biomimetic, wind-driven fog collection
	Shahrokhian, A.1; Feng, J.1; King, H.1,2,3
通讯作者	King, H.
来源期刊	JOURNAL OF THE ROYAL SOCIETY INTERFACE
ISSN	1742-5689
EISSN	1742-5662
出版年	2020
卷号	17 期号:166
英文摘要	Passive interception of fog from the wind is an effective solution for accessing water in regions where fog is frequent and other sources scarce. A Namib Desert beetle is often cited as bioinspiration for further advancement, in a narrative which focuses on patterned wettability of its bumpy elytra as a means of transporting accumulated water from its back to its mouth. However, surface transport in fog collection is secondary to the role of the fluid dynamics of droplet deposition, in which inertial droplets migrate across diverging streamlines approaching an obstruction. 3D geometry of biological surface features inevitably affect this process, but its specific role in flow physics of fog collection has not previously been explored. Here, we report experimental measurements of deposition efficiency of targets with identical surface chemistry but varying surface morphology. We find a nearly threefold increase in collection upon addition of millimetric bumps to a spherical target, and provide insight into the micromechanics underlying the performance. Modifying surface morphology can be easier than overall geometry for both manufactured structures and evolved organisms and should therefore be both considered in the design of separation devices and expected in other biological systems for which extraction of particles from flow is important.
英文关键词	water harvesting bioinspiration fluid dynamics
类型	Article
语种	英语
国家	USA
开放获取类型	Bronze, Green Published
收录类别	SCI-E
WOS记录号	WOS:000535676200004
WOS关键词	NAMIB DESERT BEETLE ; CONDENSATION ; CAPTURE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318680
作者单位	1.Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA; 2.Univ Akron, Dept Biol, Akron, OH 44325 USA; 3.Univ Akron, Biomimicry Res & Innovat Ctr, Akron, OH 44325 USA
推荐引用方式 GB/T 7714	Shahrokhian, A.,Feng, J.,King, H.. Surface morphology enhances deposition efficiency in biomimetic, wind-driven fog collection[J],2020,17(166).
APA	Shahrokhian, A.,Feng, J.,&King, H..(2020).Surface morphology enhances deposition efficiency in biomimetic, wind-driven fog collection.JOURNAL OF THE ROYAL SOCIETY INTERFACE,17(166).
MLA	Shahrokhian, A.,et al."Surface morphology enhances deposition efficiency in biomimetic, wind-driven fog collection".JOURNAL OF THE ROYAL SOCIETY INTERFACE 17.166(2020).