Results 161 to 170 of about 1,940 (222)
A Biomimetic Microchannel Heat Sink for Enhanced Thermal Performance in Chip Cooling. [PDF]
Biomimetics (Basel)Wang K, Shi Y, Chen J, Dai Y.
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Palaeo-bioinspiration draws on the fossil record to advance innovation. [PDF]
Commun BiolAish A +14 more
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Emission-Programmed Femtosecond Bessel Beams for Fabricating Micro-Nano Hierarchical Structures. [PDF]
Nanomaterials (Basel)Lu Y +5 more
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What's going well: a qualitative analysis of positive patient and family feedback in the context of the diagnostic process. [PDF]
Diagnosis (Berl)Liu SK +8 more
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A benchmark of expert-level academic questions to assess AI capabilities. [PDF]
NatureCenter for AI Safety +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
openaire +1 more source
AIP Conference Proceedings, 2020
The effectiveness of riblets in reducing friction drag has been well assessed by many experiments in flat plate flow in the end of the last century. Both theory and experiments showed that the effect of riblets only depends on the local Reynolds number, however some experiments in pressure gradient flow showed increased effectiveness of riblets.
Mele B., Tognaccini R.
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The effectiveness of riblets in reducing friction drag has been well assessed by many experiments in flat plate flow in the end of the last century. Both theory and experiments showed that the effect of riblets only depends on the local Reynolds number, however some experiments in pressure gradient flow showed increased effectiveness of riblets.
Mele B., Tognaccini R.
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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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