Results 51 to 60 of about 487 (88)

Advanced Functional Materials for Marine Energy Utilization

Interdisciplinary Materials, Volume 5, Issue 3, Page 317-356, May 2026.
Marine renewable energy is an important future clean energy supply. We construct and sort out the material system for marine energy capture and conversion, transmission, storage, and utilization for the first time. ABSTRACT Several features of marine energy, including large reserves, sustainable utilization, environmental friendliness, make it a ...
Qiang Yu, Peipei Ge, Fazhou Wang, Shichao Bi, Bo Tang, Ion Tiginyanu, Kenneth I. Ozoemena, Xiao‐Yu Yang   +7 more
wiley   +1 more source

On the Rotor Stator Interaction Effects of Low Specific Speed Francis Turbines

International Journal of Rotating Machinery, 2019
The rotor stator interaction in a low specific speed Francis model turbine and a pump-turbine is analyzed utilizing pressure sensors in the vaneless space and in the guide vane cascade.
Einar Agnalt, Igor Iliev, Bjørn W. Solemslie, Ole G. Dahlhaug   +3 more
doaj   +1 more source

Frontiers of Doppler Lidar: A Review on Its Global Applications

Meteorological Applications, Volume 33, Issue 3, May/June 2026.
Doppler lidars provide high‐resolution wind measurements that support weather forecasting, wind energy optimization, and aviation safety. This review highlights their global applications, operational advantages, and growing role in atmospheric science and sustainable development. ABSTRACT Doppler lidar is a powerful remote sensing technology capable of
Sridhara Nayak, Isao Kanda
wiley   +1 more source

Aerodynamic Characteristics of Airfoils Equipped With Gurney Flaps and Vortex Generators for the Entire Range of Pitch Angles

Wind Energy, Volume 29, Issue 5, May 2026.
ABSTRACT An experimental study of NACA0021 airfoil equipped with vortex generators (VGs) and Gurney flaps (GFs) was conducted to assess the effects of these devices on the aerodynamic airfoil performance, the information that is necessary for studying the self‐starting characteristics of vertical axis wind turbines (VAWTs).
Marin Ivanković, Marvin Jentzsch, Marinos Manolesos, Christian Navid Nayeri, Hrvoje Kozmar   +4 more
wiley   +1 more source

Wind Turbine Model Validation Is Improved by High‐Resolution, Measurement‐Derived Inflows

Wind Energy, Volume 29, Issue 5, May 2026.
ABSTRACT There is an increased need for accurate validation of turbine models used by original equipment manufacturers to fine‐tune prototypes and predict power performance and maintenance needs while avoiding costly warranty payouts. Perhaps the most substantial source of uncertainty in typical wind turbine model validation procedures is the use of ...
Daniel Houck, Ken Brown, Nathaniel deVelder, Tommy Herges, Danial Anwaar‐Maximo, Paula Doubrawa, Chris Kelley   +6 more
wiley   +1 more source

Wind Resource Evaluation With Atmospheric Stability Across Different Surface Types

Energy Science &Engineering, Volume 14, Issue 4, Page 1990-2002, April 2026.
Wind resource evaluation with atmospheric stability across different surface types. ABSTRACT This study investigates the influence of atmospheric stability on wind resource assessment across various surface conditions, focusing on wind shear and prevailing wind direction as key analytical parameters.
Zejia Hua, Wei Tao, Guanjun Wang
wiley   +1 more source

Analysis on cause of erosion of guide vane of high‐head Francis turbine in sandy river

Energy Science & Engineering
The Kizilsu River Basin in China is located in the desert Gobi area with high sediment content and high hardness. After 4798h operation, the maintenance of a high‐head Francis turbine in this basin found that the guide vane was seriously worn, and even ...
Haiqi Wang, Jiayang Pang, Xiaobing Liu, Ziyao Zhou, Yuanyuan Gang, Zhenming Lai, Jianming Wang, Bo Qin   +7 more
doaj   +1 more source

Aerodynamic Optimization of Transonic High-Pressure Turbine Vanes with Non-Axisymmetric Endwalls for Rotating Detonation Engines

International Journal of Turbomachinery, Propulsion and Power
For coupling a transonic high-pressure turbine vane with a rotating detonation combustor, several integration approaches have been considered. Endwall diffusion in the vane row can facilitate coupling by enabling a higher turbine inlet Mach number ...
Panagiotis Gallis, Sergio Grasa, Guillermo Paniagua, Simone Salvadori, Daniela Anna Misul   +4 more
doaj   +1 more source

Simulating the year to minute wind spectrum with mesoscale‐coupled large‐eddy simulations

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 777, April 2026 Part B.
We coupled a large‐eddy simulation (resolution 50 m) to a mesoscale model (resolution 2 km), which takes boundary conditions from the ERA5 reanalysis. When using a large enough mesoscale domain (𝒪(1000 km)), the simulation setup can reproduce the observed temporal wind spectrum reasonably at all scales between one year and one minute. Furthermore, such
Bernard Postema, Chiel C. van Heerwaarden, Bart J.H. van Stratum, Pim van Dorp, Peter Baas, Harm J.J. Jonker   +5 more
wiley   +1 more source

Effect of Guide Vane Opening on Flow Distortion and Impeller Stress in a Pump-Turbine Under Extremely Low-Head Conditions

Energies
Under extremely low-head conditions, the performance and stability of pump-turbine units are strongly influenced by the flow distortion caused by variations in guide vane opening.
Xiangyu Chen, Qifei Li, Lu Xin, Shiang Zhang, Mingjie Cheng, Tianding Han   +5 more
doaj   +1 more source