Results 11 to 20 of about 103,361 (72)

Examination of three candidate technologies for high-lift devices on an aircraft wing [PDF]

open access: yes, 2005
A research programme was initiated to examine three candidate high-lift technologies, which would, if implemented, simplify the mechanical complexity of the multiple component trailing-edge devices traditionally employed on civil transport aircraft ...
Knepper, Angela Marie
core   +7 more sources

An experimental study of interceptors for drag reduction on high-performance sailing yachts [PDF]

open access: yes, 2011
Interceptors have been widely used in recent years in fast ferries and small high-speed leisure and commercial craft for ride and trim control, and steering.
Day, Alexander H., Cooper, Christopher
core   +4 more sources

High Reynolds number unsteadiness assessment using 3D and 2D computational fluid dynamics simulations of a thick aerofoil equipped with a spoiler

open access: yesWind Energy, Volume 26, Issue 7, Page 668-690, July 2023., 2023
Abstract An operating 2‐MW wind turbine has been scanned and analysed using 2D computational fluid dynamics (CFD) and blade element momentum (BEM) analysis. The current work illustrates using full‐scale 3D CFD simulations the differences between 2D and 3D simulations and its impact on the local aerofoil vortex shedding frequency. The outcome shows that
Thomas Potentier   +4 more
wiley   +1 more source

A review on the use of passive flow control devices as performance enhancement of lift‐type vertical axis wind turbines

open access: yesWIREs Energy and Environment, Volume 11, Issue 4, July/August 2022., 2022
Passive Flow Control Devices as Performance Enhancement of Lift‐type Vertical Axis Wind Turbines Abstract This article provides a comprehensive review about passive flow control devices (PFCDs) implemented in lift‐type vertical axis wind turbine (LVAWT), focusing on the underlying flow physics mechanisms and to what extents they can improve the LVAWT ...
Taurista P. Syawitri   +3 more
wiley   +1 more source

Multilocus phylogenetics of smooth clam shrimps (Branchiopoda, Laevicaudata)

open access: yesZoologica Scripta, Volume 50, Issue 6, Page 795-811, November 2021., 2021
Abstract Laevicaudatan branchiopods, also called ‘smooth clam shrimps’ or ’pea shrimps’, are rare crustaceans found exclusively in temporary, small freshwater bodies, which stay dry most of the year. Only 42 laevicaudatan species have been described so far, 90% of which belong to the genus Lynceus.
Zandra M. S. Sigvardt   +6 more
wiley   +1 more source

UEG Week 2015 Poster Presentations [PDF]

open access: yesUnited European Gastroenterol J, 2015
United European Gastroenterology Journal, Volume 3, Issue S5, Page 146-687, October 2015.
europepmc   +2 more sources

DataSheet1_Characterization of the low-noise drone propeller with serrated Gurney flap.docx

open access: yes, 2022
Drones, which have become increasingly popular in recent years, produce a lot of noise due to the movement of their propellers. When flying near humans, especially as in urban situations, noise suppression is critical. It has been demonstrated that noise
Toshiyuki Nakata (3242796)   +3 more
core   +1 more source

Experimental study of the effects of turbine solidity, blade profile, pitch angle, surface roughness, and aspect ratio on the H‐Darrieus wind turbine self‐starting and overall performance

open access: yesEnergy Science &Engineering, Volume 7, Issue 6, Page 2421-2436, December 2019., 2019
This study presents comprehensive experimental data from an H‐Darrieus wind turbine to fill a gap of understanding of the impact of design parameters on the turbine's performance during start‐up period or at low tip speed ratios. Meanwhile, the present study contributes to the understanding of the factors that influence the ability of a H‐Darrieus wind
Longhuan Du   +2 more
wiley   +1 more source

Simulazione fluidodinamica di profili alari in moto di beccheggio armonico dotati di Gurney flap mobili [PDF]

open access: yes, 2022
In questa tesi è stata implementata un'analisi CFD inerente lo studio di Gurney flap attivi applicati ad un profilo transonico RAE2822 oscillante. Le simulazioni, condotte in Fluent, sono state basate su una griglia di calcolo a C, la cui oscillazione ...
Marchetto, Federico
core  

Power performance enhancement of vertical axis wind turbines by a novel gurney flap design [PDF]

open access: yes, 2022
Purpose Nowadays flaps and winglets are one of the main mechanisms to increase airfoil efficiency. This study aims to investigate the power performance of vertical axis wind turbines (VAWT) that are equipped with diverse gurney flaps.
Tahani, M., Masdari, M., Mousavi, M.
core   +1 more source

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