Results 61 to 70 of about 909,729 (313)

A Review on Performance Calculation and Design Methodologies for Horizontal-Axis Wind Turbine Blades

Energies
The efficient, low-cost, and large-scale development and utilization of offshore wind energy resources is an inevitable trend for future growth. With the continuous increase in the scale of wind turbines and their expansion into deep-sea locations, there
Rongyu Zha, Siyuan Wu, Chang Cai, Xiaohui Liu, Dian Wang, Chaoyi Peng, Xuebin Feng, Qiuhua Chen, Xiaohui Zhong, Qing’an Li   +9 more
doaj   +1 more source

A Feasibility Study to Reduce Infrasound Emissions from Existing Wind Turbine Blades Using a Biomimetic Technique

Energies, 2021
Infrasound, i.e., low-frequency noise in the frequency range of 10–200 Hz, produced by rotating wind turbine blades has become a matter of concern because it is harmful to human health.
Jinlei Lv, Wenxian Yang, Haiyang Zhang, Daxiong Liao, Zebin Ren, Qin Chen   +5 more
doaj   +1 more source

Flow analysis and optimization of a vertical axis wind turbine blade with a dimple [PDF]

, 2021
Seung-Woo Yoo, Sahuck Oh
openalex   +1 more source

BLADE-ON-PETIOLE genes temporally and developmentally regulate the sheath to blade ratio of rice leaves

Nature Communications, 2019
Axis formation is a fundamental issue in developmental biology. Axis formation and patterning in plant leaves is crucial for morphology and crop productivity.
T. Toriba, H. Tokunaga, Toshihide Shiga, Fanyu Nie, S. Naramoto, Eriko Honda, Keisuke Tanaka, T. Taji, J. Itoh, J. Kyozuka   +9 more
semanticscholar   +1 more source

Response of Bladed Disks With Mistuned Blade-Disk Interfaces [PDF]

Volume 6: Structures and Dynamics, Parts A and B, 2009
This paper focuses on the determination of the effects on the bladed disk forced response of small variations (mistuning) in the blade-disk interface properties as may result from blade seating. A blade-interface-disk mean model is first developed that relies on both the Craig-Bampton approach and a local modeling of the interface. Then, both model and
Avalos, J., Mignolet, M. P., Soize, Christian   +2 more
openaire   +2 more sources

Delamination Fracture Behavior of Unidirectional Carbon Reinforced Composites Applied to Wind Turbine Blades [PDF]

, 2021
A. Boyano, José Manuel López-Guede, Leyre Torre‐Tojal, Unai Fernández‐Gámiz, Ekaitz Zulueta, F. Mujika   +5 more
openalex   +1 more source

Development of an aeroelastic stability boundary for a rotor in autorotation [PDF]

, 2008
<p>For the present study, a mathematical model AMRA was created to simulate the aeroelastic behaviour of a rotor during autorotation. Our model: Aeroelastic Model of a Rotor in Autorotation (AMRA) captures transverse bending and teeter ...
Gillies, E.A., Thomson, D.G., Trchalík, J.   +2 more
core  

Analytical studies of new airfoils for wind turbines [PDF]

, 1981
Computer studies were conducted to analyze the potential gains associated with utilizing new airfoils for large wind turbine rotor blades. Attempts to include 3-dimensional stalling effects were inconclusive.
Calhoun, J. T., Wentz, W. H., Jr.
core   +1 more source

Application of Wake Characteristics to Prediction of Broadband Noise of a Multiblade Fan

Journal of Fluid Science and Technology, 2008
In this study, the wake characteristics of an arc blade were measured by the wind tunnel experiment; the characteristics were defined as the width of the wake, diameter of the vortex, ratio of the vortex scale, and the local lift.
Soichi SASAKI, Hidechito HAYASHI
doaj   +1 more source

Comparison of calculated and experimental cascade performance for controlled-diffusion compressor stator blading [PDF]

, 1986
The mid-span section of a previously reported controlled-diffusion compressor stator has been experimentally evaluated in cascade. Measurements are taken over a range of incidence angles for blade chord Reynolds numbers from 470,000 to 690,000.
Sanger, N. L., Shreeve, R. P.
core   +1 more source