Drag reduction properties of superhydrophobic mesh pipes
نویسندگان
چکیده
منابع مشابه
Drag reduction properties of superhydrophobic mesh pipes
Even with the recent extensive study into superhydrophobic surfaces, the fabrication of such surfaces on the inside walls of a pipe remains challenging. In this work we report a convenient bi-layered pipe design using a thin superhydrophobic metallic mesh formed into a tube, supported inside another pipe. A flow system was constructed to test the fabricated bi-layer pipeline, which allowed for ...
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We present an experimental study of a low-Reynolds number shear flow between two surfaces, one of which has a regular grooved texture augmented with a superhydrophobic coating. The combination reduces the effective fluid-surface contact area, thereby appreciably decreasing the drag on the surface and effectively changing the macroscopic boundary condition on the surface from no slip to limited ...
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Surface with a static contact angle (CA) greater than 150° are in general defined as superhydrophobic surfaces. Superhydrophobic surface have great potentials in fundamental research,[1-5] and also wide practical applications in the production of textile, microfluidics, self-cleaning surfaces, building glass, windshields of cars, ships hulls, pipes and the satellite antenna surfaces.[6] Superhy...
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Super water-repellent surfaces occur naturally on plants and aquatic insects and are created in the laboratory by combining micro or nano-scale surface topographic features with hydrophobic surface chemistry. When such types of water-repellent surfaces are submerged they can retain a film of air (a plastron). In this work, we report measurements of the terminal velocity of solid acrylic spheres...
متن کاملDrag reduction on laser-patterned hierarchical superhydrophobic surfaces.
Hierarchical laser-patterned surfaces were tested for their drag reduction abilities. A tertiary level of surface roughness which supports stable Cassie wetting was achieved on the patterned copper samples by laser-scanning multiple times. The laser-fabricated micro/nano structures sustained the shear stress in liquid flow. A rheometer setup was used to measure the drag reduction abilities in t...
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ژورنال
عنوان ژورنال: Surface Topography: Metrology and Properties
سال: 2017
ISSN: 2051-672X
DOI: 10.1088/2051-672x/aa793b