Results 111 to 120 of about 766,112 (308)

Wake Analysis of Wind Turbine Based on Scanning Images from Doppler Lidar

open access: yes南方能源建设
[Objective] To fully explore the data value of lidar in wind turbine wake observation, conduct an in-depth study on the three-dimensional (3D) wake structure and wind speed attenuation characteristics in wake zone, and further provide references for ...
Yanfeng CAI, Fareng YAO, Jiyan WANG
doaj   +1 more source

Computation of rotor aerodynamic loads in forward flight using a full-span free wake analysis [PDF]

open access: yes
The development of an advanced computational analysis of unsteady aerodynamic loads on isolated helicopter rotors in forward flight is described. The primary technical focus of the development was the implementation of a freely distorting filamentary ...
Bliss, Donald B.   +4 more
core   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

open access: yesAdvanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Wake Loss Analysis of Offshore Wind Farm in Operation

open access: yes南方能源建设, 2019
[Introduction] In order to understand the wake loss of offshore wind farm, the simulation results are verified to explore the variation law of offshore wake loss.
LIU Sha, WANG Zhongquan, CAI Yanfeng
doaj   +1 more source

The Ni,Cd Heteroatoms‐Initiated Synergistic Tuning of Electron Configuration in Fe2VO4 Nanosheets Electrocatalysts to Profoundly Stabilize Alkaline Seawater Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
A Ni,Cd‐codoped Fe2VO4/NF bifunctional electrocatalyst is rationally designed for efficient seawater electrolysis. Synergistic effect modulates electron configuration, optimizes intermediates adsorption, stabilizes high‐valence Fe/V sites, and repels chloride ions to suppress corrosion and side reactions, thus contributing to performance improvement of
Weiguo Huang   +15 more
wiley   +1 more source

Modelling turbulence in axisymmetric wakes: an application to wind turbine wakes

open access: yesJournal of Fluid Mechanics
A novel fast-running model is developed to predict the three-dimensional (3-D) distribution of turbulent kinetic energy (TKE) in axisymmetric wake flows. This is achieved by mathematically solving the partial differential equation of the TKE transport using the Green's function method.
Majid Bastankhah   +4 more
openaire   +3 more sources

Application of laser velocimetry to aircraft wake-vortex measurements [PDF]

open access: yes
The theory and use of a laser velocimeter that makes simultaneous measurements of vertical and longitudinal velocities while rapidly scanning a flow field laterally are described, and its direct application to trailing wake-vortex research is discussed ...
Ciffone, D. L., Orloff, K. L.
core   +1 more source

OWA Wake Modelling Challenge

open access: yes, 2020
Presentation at Wakebench3 meeting of the final results from the Offshore Wind Accelerator (OWA) Wake Modelling Challenge on the prediction of array efficiency at 5 offshore wind farms. Evaluation scripts and additional results available at the GitHub and simulation data repositories.
Sanz Rodrigo, J.   +12 more
openaire   +1 more source

Modular Control of PEG‐Poly(2‐Oxazoline) Co‐Assembly Enables Tunable Aggregate Properties for Intraocular Pressure Management

open access: yesAdvanced Healthcare Materials, EarlyView.
A thermo‐responsive poly(2‐oxazoline)‐based injectable formulation is developed to modulate intraocular pressure (IOP) in both normal and hypotonic eyes. By adjusting the PEG content, the aggregation behavior is finely tuned, enabling IOP elevation without long‐term deposition.
Yuji Tanaka   +2 more
wiley   +1 more source

Externally blown flap impingement parameters [PDF]

open access: yes
The performance of two externally blown flap (EBF) wind tunnel models was compared with an engine exhaust flap impingement correlation parameter. One model was a four engine EBF triple slotted flap transport.
Hoad, D. R.
core   +1 more source

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