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The Roles of Riblet and Superhydrophobic Surfaces in Energy Saving Using a Spatial Correlation Analysis [PDF]

open access: yesNanomaterials, 2023
Riblet and superhydrophobic surfaces are two typical passive control technologies used to save energy. In this study, three microstructured samples—a micro-riblet surface (RS), a superhydrophobic surface (SHS), and a novel composite surface of micro ...
Chunye Liu   +4 more
doaj   +3 more sources

Design of Nonsmooth Groove Tire Bioinspired by Shark-Skin Riblet Structure [PDF]

open access: yesApplied Bionics and Biomechanics, 2022
As one of the major causes of traffic accidents on wet roads, hydroplaning is prone to occur when the traveling speed of a vehicle rises so high that the hydrodynamic pressure between pavement and tires equals inflation pressure.
Congzhen Liu   +6 more
doaj   +3 more sources

Hierarchical Riblet Structures for Enhanced Drag Reduction and Broader Operational Range in Water Pipelines. [PDF]

open access: yesACS ES T Water
In drinking water distribution systems (DWDS), skin-friction drag in turbulent pipe flows contributes significantly to energy losses. Passive drag-reducing surfaces, such as shark-skin-inspired riblets, have shown promise in controlled environments but ...
Mohammadpour Chehrghani M   +4 more
europepmc   +2 more sources

Advances in Riblets Design

open access: yesApplied Sciences, 2023
Continuous evolution in nature has created optimum solutions for creature survival that have inspired many innovative engineering designs. Riblet geometries, passive flow control devices, have been studied, which were inspired by the skin of fast ...
Mohammad Reza Pakatchian   +2 more
doaj   +3 more sources

Relationship Between Skin Scales and the Main Flow Field Around the Shortfin Mako Shark Isurus oxyrinchus [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
The aim of this study was to reveal potential relationship between the main flow field around a shortfin mako shark and the surface morphology of shark skin.
Chengchun Zhang   +8 more
doaj   +2 more sources

Turbulent Boundary Layer Control with Multi-Scale Riblet Design

open access: yesEnergies
Motivated by the saturation of drag reduction effectiveness at high non-dimensional riblet spacing in turbulent boundary layer flows, this study seeks to investigate the influence of a secondary blade riblet structure on flow statistics and friction drag
Md. Rafsan Zani   +3 more
doaj   +2 more sources

Flow structures and wall parameters on rotating riblet disks and their effects on drag reduction

open access: yesAlexandria Engineering Journal, 2022
The demand of energy saving and loss mitigation in modern industry gives rise to drag reduction techniques such as micro groove/riblet ever since the last century.
Tong Liang   +3 more
doaj   +2 more sources

Riblet Drag Reduction Modeling and Simulation

open access: yesFluids, 2022
One of the most interesting passive drag reduction techniques is based on the use of riblets or streamwise grooved surfaces. Detailed flow features inside the grooves can be numerically detected only by Direct Numerical Simulations (DNS), still ...
Benedetto Mele
doaj   +2 more sources

A review of drag reduction and heat transfer enhancement by riblet surfaces in closed and open channel flow

open access: yesInternational Journal of Thermofluids, 2021
Turbulence and heat transfer are two critical factors in the chain of world energy consumption. Hence, development of more efficient energy transfer techniques in engineering applications through control and optimization of the thermal turbulent boundary
Shima Soleimani, Steven Eckels
doaj   +2 more sources

Marine drag reduction of shark skin inspired riblet surfaces

open access: yesBiosurface and Biotribology, 2017
Shark skin inspired riblet surfaces have been known to have drag reduction effect for the over past 40 years. It first drew the attention from the aircraft industry.
Y.F. Fu, C.Q. Yuan, X.Q. Bai
doaj   +2 more sources

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