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Harvesting fog can provide fresh water in desert regions

Phys.org/news (NOVEMBER 26, 2019 )

Titre : Harvesting fog can provide fresh water in desert regions

Fog harvesting is a potential practical source of fresh water in foggy coastal deserts, and current solutions rely on meter scale nets/meshes. The mesh geometry, however, presents a physiologically inappropriate shape for millimeter scale bulk bodies, like insects.

Phys.org/news (NOVEMBER 26, 2019 )

Présentation
However, Namib desert beetles use a different harvesting mechanism than trees do. These insects use the irregular surface morphology—uneven bumps and flat areas—on their backs to gather fresh water from desert fog. Inspired by the Namib beetle, Chan and collaborators Aida Shahrokhian and Hunter King, from Mechanical Biomimetics and Open Design Lab at the University of Akron, study how surface morphology affects the surrounding fluid flow, consequently leading to droplet impaction for harvesting.

Source  : American Physical Society

Annonce (Phys.org/news)

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