Results 71 to 80 of about 177 (133)
Drag reduction capacity of multi‐scale and multi‐level riblet in turbulent flow
Biosurface and BiotribologyFor high‐speed moving objects, drag reduction has been a prolonged major challenge. To address this problem, passive and negative strategies have been proposed in the preceding decades.
Dengke Chen +7 more
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The breakdown of the viscous regime in riblets
, 2009 Abstract Submitted for the DFD09 Meeting of The American Physical ...
García Mayoral, Ricardo +1 more
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工程科学与技术To investigate the turbulent drag reduction characteristics of microstructure walls, the particle image velocimetry system was utilized to observe water flow characteristics across superhydrophobic, riblet, and smooth walls.
Chunye LIU +5 more
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Zhileng xuebaoInspired by the drag-reducing effect of natural riblet-like structures on shark skin， this study proposes a biomimetic shark skin denticle structure and evaluates its heat transfer enhancement and drag reduction performance in a single-phase tube flow ...
Song Xia +6 more
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Drag Reduction in Pipe Flow with Riblet.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 2002 OKAMOTO, Shiki +2 more
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AIAA Journal, 2018
Koch-like riblets that iteratively protrude toward the outside (the fluid region) or cave in at the wall are examined. The near-wall microscopic fluid problem is addressed by solving for the Stokes flow with a boundary element method, yielding slip lengths for all the surface shapes considered.
Alinovi, Edoardo +2 more
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Koch-like riblets that iteratively protrude toward the outside (the fluid region) or cave in at the wall are examined. The near-wall microscopic fluid problem is addressed by solving for the Stokes flow with a boundary element method, yielding slip lengths for all the surface shapes considered.
Alinovi, Edoardo +2 more
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The Influence of Process Parameters on the Forming of Riblets during Riblet Rolling
Key Engineering Materials, 2014In aeronautics, economic and environmental aspects become increasingly important. As those are very much influenced by the frictional drag of the airplane, a reduction of skin friction which causes a major portion of total aerodynamic drag is desirable.
Julia Pöplau +5 more
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Analyses of Non Local Effects of Riblets
Aerotecnica Missili & Spazio, 2016The paper deals with the effects of pressure gradient and shock wave on riblet performance. A model for the numerical simulations of riblets at high Reynolds numbers is presented and results of airfoil flows in subsonic and transonic conditions are discussed and compared with available experiments.
MELE B, Tognaccini R, Catalano P
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