Results 21 to 30 of about 286,670 (292)
Unsteady flow field in a mini VAWT with relative rotation blades: analysis of temporal results [PDF]
, 2013 The present wind turbine is a small one which can be used on roofs or in gardens. This turbine has a vertical axis. Each turbine blade combines a rotating movement around its own axis and around the main rotor axis.
SIMONET, Sophie +2 more
core +1 more source
Design and Experimental Validation of a Ducted Counter-rotating Axial-flow Fans System [PDF]
, 2012 An experimental study on the design of counter-rotating axial-flow fans was carried out. The fans were designed using an inverse method. In particular, the system is designed to have a pure axial discharge flow.
NOURI, Hussain +9 more
core +1 more source
Integrated aeroelastic and control analysis of wind turbine blades equipped with microtabs [PDF]
, 2015 This paper presents the results of an investigation into the performance of different controllers in active load control of wind turbine blades equipped with microtabs.
Macquart, Terence, Maheri, Alireza
core +1 more source
PLoS ONE, 2021 In recent years, the flow characteristics research of the interstage region in counter-rotating axial fans in terms of fluid dynamics has attracted much attention.
Xinzhe Zhang +4 more
doaj +1 more source
Study on the Rotation Effect on the Modal Performance of Wind Turbine Blades
Energies, 2023 With the large-scale development of wind turbines, large flexible blades bear heavier loads. In the actual rotating work of blades, the coupling of structural deformation and motion produces a dynamic stiffening effect and spin softening effect, which ...
Yewen Chen +7 more
doaj +1 more source
Vibrations of a Rotating Blade
The Journal of the Japan Society of Aeronautical Engineering, 1956 The bending vibrations of a rotating blade were investigated by some authors. But, as in the aerofoil seetion the centre of gravity and the centre of twist do not coincide the coupling of bending and twisting vibrations occurs necessarily.In the present investigation the frequencies of the above mentioned coupled vibrations of a rotating blade which ...
openaire +3 more sources
Bio-Inspired Gradient Coatings Enhance the Leading Edge Erosion Resistance of Wind Blades. [PDF]
Adv Sci (Weinh)Rain‐induced erosion of the wind turbine blade leading edge poses a critical challenge to maintenance and operation. Here, we propose a bio‐inspired approach for erosion protection utilising a platelet‐reinforced polyurethane coating with a graded through‐thickness architecture.
Guevara-Sotelo NS, Teuwen J, Masania K.
europepmc +2 more sources
Comparison of Various Turbulence Models in Rotating Machinery Blade‐to‐Blade Passages [PDF]
International Journal of Rotating Machinery, 1999 Numerical calculations on four blade passages are done using Q3D Navier‐Stokes solver with a simple mixing length turbulence model and two more advanced transport‐equation approaches. Mixing length is simple and cheap but crude, while more sophisticated transport approaches are more physical but more expensive.
E. Y. K. Ng, S. T. Tan
openaire +2 more sources
Prediction of contra-rotating open rotor broadband noise in isolated and installed configurations
, 2014 Broadband noise is a significant part of the noise emitted by contra-rotating open rotors. Several noise sources can contribute to the total broadband sound field, with the most dominant ones probably being trailing edge noise, rotor-wake interaction ...
Zhang, Xin +8 more
core +2 more sources
Numerical simulation of the flow around a wind wheel with rotating cylindrical blades.
Eurasian Physical Technical Journal, 2021 The article discusses the results of numerical simulation of the flow around a wind wheel with blades in the form of rotating cylinders using the software package ANSYS. The advantage of a wind turbine with rotating cylindrical blades in comparison with
N.K. Tanasheva +5 more
doaj +1 more source