Results 51 to 60 of about 1,076 (183)

Airfoil Blender for Blade Optimizations

Journal of Physics: Conference Series, 2018
An airfoil database was developed in the present work. The database includes a multivariate, unstructured grid, Radial Basis Function (RBF), optimization-compatible interpolator for airfoil aerodynamic coefficients. The database was designed to aid complex blade design optimizations carried out in a novel optimization framework, HAWTOpt2, being ...
Skrzypiński, Witold, McWilliam, Michael, Zahle, Frederik; id_orcid 0000-0002-3890-7519   +2 more
openaire   +1 more source

Wind Turbine Control for Spatially Varying Turbulence

Wind Energy, Volume 29, Issue 8, August 2026.
ABSTRACT This study investigates the influence of inflow turbulence generation simulation methods and blade pitch control strategies on the performance and blade structure loading of a large offshore wind turbine. Two inflow representations were considered: synthetic Kaimal turbulence generated in accordance with IEC design standards and large‐eddy ...
Hannah Mullings, Mina Ghobrial, Wenjun Ye, Yi Zhang, David Apsley, Peter Stansby   +5 more
wiley   +1 more source

Parametric research and aerodynamic performance analysis of wind turbine airfoil with added flap

AIP Advances, 2022
A self-popped up flap is added to the airfoil (S809) suction surface to improve aerodynamic performance under large angle of attack (AOA) inspired by the slightly popped up feathers on the trailing edge of a bird’s wing. The response surface methodology (
Qimin Ma, Jiahao Wang, Yang Zhang, Xiaomin Liu   +3 more
doaj   +1 more source

Coastal Marine Carbon and Air‐Sea Fluxes Quantified From pH Sensors on an Extended AUV Deployment

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract For the first time, the Autosub Long Range (ALR) completed a fully autonomous, long‐distance (2,000 km) scientific mission, delivering new insight into coastal carbonate dynamics and air‐sea CO2 ${\text{CO}}_{2}$ fluxes. Equipped with a suite of oceanographic sensors, including a Lab‐on‐Chip (LOC) pH sensor and a Sea‐Bird SeaFET pH sensor, the
Emily M. Hammermeister, Cathy Wimart‐Rousseau, Stathys Papadimitriou, Pablo Trucco‐Pignata, Edward Chaney, Robert Templeton, Alexander B. Phillips, Socratis Loucaides   +7 more
wiley   +1 more source

Aerodynamic optimization of supersonic airfoils using bijective cycle generative adversarial networks

Theoretical and Applied Mechanics Letters
An efficient, diversified, and low-dimensional airfoil parameterization method is critical to airfoil aerodynamic optimization design. This paper proposes a supersonic airfoil parameterization method based on a bijective cycle generative adversarial ...
Chenfei Zhao, Yuting Dai, Xue Wang, Chao Yang, Guangjing Huang   +4 more
doaj   +1 more source

No Charging but Protection: Lifetime Prolongation of Spontaneously‐polarized Electrets for Energy Harvesting Applications

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.
A bilayer protection approach is proposed for slowing down the surface potential decay of thin films of spontaneously‐polarized electret materials. The electret and the protective films are characterized, and the protection effectiveness is investigated under the effects of light illumination, water contact and mechanical impact.
Seyedali Sabzpoushan, Henry Juncker, Peter Woias   +2 more
wiley   +1 more source

Numerical optimization for high efficiency, low noise airfoils [PDF]

29th AIAA Applied Aerodynamics Conference, 2011
One key element in the aerodynamic design of wind turbines is the use of specially tailored airfoils to increase the ratio of energy c apture to the loading and thereby to reduce cost of energy. At the same time, noise reduction i s becoming more and more important.
N. Bizzarrini, F. Grasso, COIRO, DOMENICO   +2 more
openaire   +3 more sources

Blade Count and Rotational Speed Sensitivity of Vertical‐Axis Turbines Under Guided Vehicle‐Generated Transient Wakes

Energy Science &Engineering, Volume 14, Issue 7, Page 3324-3345, July 2026.
Passing vehicles generate short‐duration wakes that can be redirected toward a vertical‐axis turbine. The interaction between wake structure, blade count, and rotational speed governs transient torque production. Low‐solidity configurations combined with tuned rotational speed enhance energy extraction under vehicle‐induced gusts.
Aydin Ulus, Stefan Ilie Moldovan
wiley   +1 more source

Efficient Harvesting of Irregular and Low‐Frequency Mechanical Energy via Hybridized Electromagnetic‐Triboelectric Systems

Small, Volume 22, Issue 39, 13 July 2026.
ABSTRACT The rapid expansion of the Internet of Things (IoT) and wearable electronics necessitates sustainable power sources to replace the limited electrochemical battery. While mechanical energy harvesting offers a promising solution, traditional harvesters face challenges of irregular and low−frequency environmental sources. This review presents the
Yongbin Han, Ju‐Hyuck Lee, Hong‐Joon Yoon   +2 more
wiley   +1 more source

Assessing the Underwater Impact of Aerodynamic Noise From Offshore Wind Turbines

Wind Energy, Volume 29, Issue 7, July 2026.
ABSTRACT The growing demand for offshore wind energy has led to a significant increase in wind turbine size and to the development of large‐scale wind farms, often comprising 100–150 turbines. However, the environmental impact of underwater noise emissions remains largely unaddressed.
Laura Botero‐Bolívar, Oscar A. Marino Sánchez, Martín de Frutos, Esteban Ferrer   +3 more
wiley   +1 more source