Journal
CHEMBIOENG REVIEWS
Volume 2, Issue 3, Pages 185-203Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cben.201400033
Keywords
Drag reduction; Geometry; Riblets; Skin friction
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Funding
- University Malaysia Pahang (UMP)
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It was believed that fluid flow and the laminar to turbulent transition delay were more easily controlled on smooth surfaces until the discovery of the grooved shark skin surface that changed the whole idea of how smooth the surface should be to have high flow in submerged surfaces. Riblets have gained renewed interest in academic fields of study and in industry due to several advantages in manip-ulating the turbulence boundary layer. Drag reduction using small, longitudinally grooved surface provides up to 10% lower energy consumption in several applications. This review provides an overview of the mechanism of drag reduction with riblets, the different geometries and types, and the latest developments in drag reduction riblet technology.
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