Stochastic Modeling of Lift and Drag Dynamics to Obtain Aerodynamic Forces with Local Dynamics on Rotor Blade under Unsteady Wind Inflow [PDF]
Mehran University Research Journal of Engineering and Technology, 2014 This contribution provides the development of a stochastic lift and drag model for an airfoil FX 79-W-151A under unsteady wind inflow based on wind tunnel measurements.
Muhammad Ramzan Luhur +2 more
doaj
Remote Sensing, 2016 The technical aspects of a multi-Doppler LiDAR instrument, the long-range WindScanner system, are presented accompanied by an overview of the results from several field campaigns.
Nikola Vasiljević +5 more
doaj +1 more source
Applications of satellite winds for the offshore wind farm site Anholt [PDF]
Wind Energy Science, 2018 Rapid growth in the offshore wind energy sector means more offshore wind farms are placed closer to each other and in the lee of large land masses. Synthetic aperture radar (SAR) offers maps of the wind speed offshore with high resolution over large ...
T. Ahsbahs +4 more
doaj +1 more source
Low-level jets in the North and Baltic seas: mesoscale model sensitivity and climatology using WRF V4.2.1 [PDF]
Geoscientific Model DevelopmentLow-level jets (LLJs), characterized by wind speed maxima in the lower part of the atmospheric boundary layer, play a crucial role in shaping wind resource availability, particularly as modern wind turbines reach heights exceeding 200 m.
B. T. E. Olsen +4 more
doaj +1 more source
Wind Energy, 2023 Curved tip extensions are among the rotor innovation concepts that can contribute to the higher performance and lower cost of horizontal axis wind turbines.
Sergio González Horcas +4 more
doaj +1 more source
Analysis of control-oriented wake modeling tools using lidar field results [PDF]
Wind Energy Science, 2018 The objective of this paper is to compare field data from a scanning lidar mounted on a turbine to control-oriented wind turbine wake models. The measurements were taken from the turbine nacelle looking downstream at the turbine wake.
J. Annoni +9 more
doaj +1 more source
The Making of the New European Wind Atlas – Part 2: Production and evaluation [PDF]
Geoscientific Model Development, 2020 This is the second of two papers that document the creation of the New European Wind Atlas (NEWA). In Part 1, we described the sensitivity experiments and accompanying evaluation done to arrive at the final mesoscale model setup used to produce the ...
M. Dörenkämper +18 more
doaj +1 more source
A simulation study demonstrating the importance of large-scale trailing vortices in wake steering [PDF]
Wind Energy Science, 2018 In this paper, we investigate the role of flow structures generated in wind farm control through yaw misalignment. A pair of counter-rotating vortices is shown to be important in deforming the shape of the wake and in explaining the asymmetry of wake ...
P. Fleming +6 more
doaj +1 more source
Quarter-Century Offshore Winds from SSM/I and WRF in the North Sea and South China Sea
Remote Sensing, 2016 We study the wind climate and its long-term variability in the North Sea and South China Sea, areas relevant for offshore wind energy development, using satellite-based wind data, because very few reliable long-term in-situ sea surface wind observations ...
Charlotte Bay Hasager +5 more
doaj +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source