Fig. 1: The design concept.
From: Aerodynamics-assisted, efficient and scalable kirigami fog collectors
a Schematic illustration of the aerodynamic deviation problem encountered by the conventional fog collecting mesh structures. The interception of fog droplets is highly impaired by the wind streamline deflected around the mesh fibers. b The front and side views of the cubic kirigami made from Al-coated PET. The insert image is the schematic showing of the cuts and folds. The height (ho) and width (wo) of cubic unit are set at 9 and 10 mm, respectively, while the width (e) and length (l) of the joint are 3 and 1 mm, respectively. The angle between two facets is defined as the folding angle \(\theta\). c Conceptual drawing of the tube-like vortices penetrating through the openings. d Schematic image showing the trajectory of fog droplets rectified by the vortex. The incoming fog droplets can accumulate inside the vortex, where they grow larger through coalescence and are captured by the substrate efficiently.
