Results 41 to 50 of about 6,353 (319)

The stability of wakes of floating wind turbines

Physics of Fluids, 2022
Floating offshore wind turbines (FOWTs) are subjected to platform motion induced by wind and wave loads. The oscillatory movement trigger vortex instabilities, modifying the wake structure and influencing the flow reaching downstream wind turbines. In this work, the wake of a FOWT is analyzed by means of numerical simulations and a comparison with ...
V. G. Kleine, L. Franceschini, B. S. Carmo, A. Hanifi, D. S. Henningson   +4 more
openaire   +2 more sources

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

Advanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Experimental Research for Stabilizing Offshore Floating Wind Turbines

Energies, 2019
Floating turbines are attracting increasing interest today. However, the power generation efficiency of a floating turbine is highly dependent on its motion stability in sea water.
Wenxian Yang, Wenye Tian, Ole Hvalbye, Zhike Peng, Kexiang Wei, Xinliang Tian   +5 more
doaj   +1 more source

Application of adaptive fuzzy control to suppression vibration response of floating offshore wind turbine

Xibei Gongye Daxue Xuebao, 2021
Floating offshore wind turbine is a complex rigid-flexible coupling nonlinear system, and the accurate dynamic model is difficultly established. Therefore, the wind-wave interference cannot be improved by adopting the conventional control strategy.

doaj   +1 more source

Selective Separation of the Rare Earth Elements Dysprosium and Neodymium via Tailoring Nanocellulose Chemical Structure

Advanced Functional Materials, EarlyView.
Dicarboxylate‐modified anionic hairy cellulose nanocrystals exhibit a high selectivity for dysprosium(III) over neodymium(III). This selectivity arises from disordered dicarboxylate cellulose “hairs” that enable cooperative ionic coordination, hydrogen bonding, and strain‐induced conformational shrinkage.
Roya Koshani, Shang‐Lin Yeh, Karuna Anna Sajeevan, Mica L. Pitcher, Dawson Alexander, Ratul Chowdhury, Amir Sheikhi   +6 more
wiley   +1 more source

Experimental validation of parked loads for a floating vertical axis wind turbine: wind–wave basin tests [PDF]

Wind Energy Science
Parked loads are a major design load case for vertical axis wind turbines (VAWTs) because of persistent high loads on the rotor when in standstill conditions.
Md. S. Hossain, D. T. Griffith
doaj   +1 more source

Floating wind turbines: marine operations challenges and opportunities

Wind Energy Science, 2022
Abstract. The global floating offshore wind energy industry is rapidly maturing, with several technologies having been installed at pilot and demonstration scales. As the industry progresses to full array-scale deployments, the optimization of marine activities related to installation, operation and maintenance, and decommissioning presents a ...
Chitteth Ramachandran, Rahul, Desmond, Cian, Judge, Frances, Serraris, Jorrit-Jan, Murphy, Jimmy   +4 more
openaire   +3 more sources

The Possibility of New Complex Magnet Materials

Advanced Materials, EarlyView.
The quest for stronger magnets enters a new era. With the developments of AI‐driven materials discovery, computational prediction of magnetic properties, and autonomous laboratories, researchers can now explore millions of untested structures. Discovery of next‐generation ultra‐powerful magnets – critical for electric vehicles, renewable energy, and ...
G. Jeffrey Snyder
wiley   +1 more source

Dynamic Analysis of Crane Vessel and Floating Wind Turbine during Temporary Berthing for Offshore On-Site Maintenance Operations

Journal of Marine Science and Engineering
With the increased scale and deployment of floating wind turbines in deep sea environments, jack-up installation vessels are unable to conduct maintenance operations due to limitations in water depth.
Jinkun Shi, Mingfeng Hu, Yifan Zhang, Xiaodong Chen, Sheng Yang, Thiago S. Hallak, Mingsheng Chen   +6 more
doaj   +1 more source

Aerodynamic Behavior of a Floating Offshore Wind Turbine [PDF]

AIAA Journal, 2019
The flowfield around the rotor blades of a wind turbine may be quite complex due to the occurrence of several aerodynamic phenomena. It is all the more true for floating offshore wind turbines (FOWT), for which the six rigid-body motions of the floating platform can induce blade/wake interactions.
Caroline Lienard, Ronan Boisard, Camille Daudin   +2 more
openaire   +2 more sources