Results 61 to 70 of about 1,669 (212)

Role of the Setae in an Ectoparasitic Seal Louse in Reducing Surface Drag: Numerical Modeling Approach

Advanced Theory and Simulations, Volume 8, Issue 10, October 2025.
The seal louse Echinophthirius horridus has uniquely shaped setae that may reduce drag during its host's dives. Using numerical simulations, this study demonstrates that their natural inclination promotes vortex formation, minimizing friction and energy loss. These findings provide insights into biological surface adaptations and may inspire the design
Anika Preuss, Stanislav N. Gorb, Alexander Kovalev, Alexander E. Filippov   +3 more
wiley   +1 more source

Effect of body shape on riblets performance

, 2020
The effect of partial slip flow on airfoil performance at high Reynolds numbers is analyzed in this paper. The link between the physical mechanism of drag reduction attained by many devices and the slip length concept has been well assessed in the ...
De Rosa D., Mele B., Catalano P., Tognaccini R.   +3 more
core   +1 more source

Examination of the wall law based on determining virtual origins over riblets in a turbulent boundary layer

Nihon Kikai Gakkai ronbunshu
Experimental investigations in a wind tunnel facility have been made over riblets and smooth surfaces at moderate Reynolds numbers under zero pressure gradient.
Takuto NONOMIYA, Monami SASAMORI, Shinsuke MOCHIZUKI   +2 more
doaj   +1 more source

Taxonomic Revision of Jingle Shells: Resurrecting and Reclassifying Species of Anomiidae (Bivalvia: Pectinida)

Ecology and Evolution, Volume 15, Issue 10, October 2025.
The family Anomiidae displays taxonomic ambiguity due to morphological plasticity. We resurrect Heteranomia aculeata and Pododesmus glaucus, while reclassifying Isonomia umbonata as Pododesmus umbonatus. Phylogenetic analyses confirm these revisions and the monophyly of all genera within Anomiidae, with Pododesmus as the earliest‐diverging lineage ...
Yi‐Tao Lin, Jian‐Wen Qiu
wiley   +1 more source

Scalable Fabrication of Height‐Variable Microstructures with a Revised Wetting Model

Advanced Engineering Materials, Volume 27, Issue 13, July 2025.
Height‐variable microstructures are fabricated using a scalable CO2 laser machining approach, enabling precise control of wettability through structural gradients. Classical wetting models fail to capture height‐induced effects, necessitating a revised theoretical framework.
Prabuddha De Saram, Nam‐Trung Nguyen, Navid Kashaninejad   +2 more
wiley   +1 more source

Application of riblets on turbine blade endwall secondary flow control

, 2015
© 2015 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Within the past 10 years, significant improvements have been achieved in the laser manufacturing process. It is feasible now to design various small-scale surface
Jiang, H., Qi, H., Zhang, Q., Miao, X., Wang, L.   +4 more
core   +1 more source

Microcylinder and Slot Combination for Flow Separation Control Over a Wind Turbine Airfoil

Wind Energy, Volume 28, Issue 7, July 2025.
ABSTRACT This study explores a novel passive flow control strategy combining a microcylinder and slot configuration to mitigate flow separation over an S809 wind turbine airfoil under stall conditions at a Reynolds number of 106. Numerical simulations are conducted using the Reynolds‐averaged Navier–Stokes (RANS) approach. The primary objectives are to
Sami Bouterra, Riyadh Belamadi, Abdelouaheb Djemili, Adrian Ilinca   +3 more
wiley   +1 more source

Emerging Trends in Bioinspired Superhydrophobic and Superoleophobic Sustainable Surfaces

Advanced Materials, Volume 37, Issue 12, March 26, 2025.
Biomimicry offers an exceptional opportunity to design materials with advanced properties. This review summarizes the latest findings for developing sustainable superhydrophobic–superoleophobic materials using biomimicry, their challenges, and future directions.
Cerys M. Cormican, Sinem Bektaş, Francisco J. Martin‐Martinez, Shirin Alexander   +3 more
wiley   +1 more source

Effect of end-wall riblets on radial turbine performance

, 2017
This paper presents a detailed study of the impact of manufacturing residual riblets at the rotor hub surface of a radial inflow turbine on the flow within the rotor passages and their contribution to drag reduction.
Khader, M. A., M A Khader, Sayma, A. I., A I Sayma   +3 more
core   +1 more source

Organic Electrochemical Transistors: From Lithography to Large‐Scale Printing

Advanced Electronic Materials, Volume 11, Issue 3, March 2025.
This review provides an insightful overview on recent progress of organic electrochemical transistors (OECTs) fabricated via diversified printing techniques. Material systems, printing technologies, and application fields are comprehensively summarized, following with brief discussion on the remaining challenges and future prospects for large‐scale ...
Ling Huang, Dezhen Zhao, Xinwen Yan, Xu Liu, Qingqing Sun, Huige Yang, Xuying Liu, Hanyu Jia   +7 more
wiley   +1 more source