Brief communication: A clarification of wake recovery mechanisms [PDF]
Wind Energy Science, 2023 Understanding wind turbine wake recovery is important for developing models of wind turbine interaction employed in the design of energy-efficient wind farm layouts.
M. P. van der Laan +2 more
doaj +4 more sources
Multiple Wind Turbine Wakes Modeling Considering the Faster Wake Recovery in Overlapped Wakes [PDF]
Energies, 2019 In a wind farm some wind turbines may be affected by multiple upwind wakes. The commonly used approach in engineering to simulate the interaction effect of different wakes is to combine the single analytical wake model and the interaction model. The higher turbulence level and shear stress profile generated by upwind turbines in the superposed area ...
Shuang Han, Yongqian Liu, Han Shuang
exaly +3 more sources
Validation of Tidal Stream Turbine Wake Predictions and Analysis of Wake Recovery Mechanism [PDF]
Journal of Marine Science and Engineering, 2019 This paper documents the predictive capability of rotating blade-resolved unsteady Reynolds averaged Navier-Stokes (URANS) and Improved Delayed Detached Eddy Simulation (IDDES) computations for tidal stream turbine performance and intermediate wake ...
Sanchit Salunkhe +6 more
doaj +2 more sources
Coriolis recovery of wind farm wakes [PDF]
Wind Energy ScienceTwo mechanisms cause wind speed recovery in the wake of a wind farm: momentum mixing and the Coriolis force. To study these mechanisms, we use a steady linearised two-layer fast Fourier transform (FFT) model so that both analytical expressions and full ...
R. B. Smith, B. J. Gribben
doaj +3 more sources
Beyond proportional recovery in wake-up stroke: unsupervised recovery clusters based on the NIHSS. [PDF]
J Neuroeng RehabilAbstract Post-stroke rehabilitation is a complex process influenced by several neurophysio-logical factors. The recovery is traditionally predicted based on initial impairment using linear models. The Proportional Recovery Rule (PRR), developed on the Fugl-Meyer scale, has even been proposed as a therapeutic target ...
Zanola A +6 more
europepmc +4 more sources
Observations of wind farm wake recovery at an operating wind farm [PDF]
Wind Energy ScienceThe interplay of momentum surrounding wind farms significantly influences wake recovery, affecting the speed at which wakes return to their freestream velocities. Under stable atmospheric conditions, wind farm wakes can extend over considerable distances,
R. Krishnamurthy +9 more
doaj +4 more sources
Effect of Rotor-Stator Spacing on Compressor Performance at Variable Operating Conditions
Applied Sciences, 2022 This paper investigates the effect of rotor-stator spacing and operating conditions on compressor performance and the rotor-stator interaction mechanism.
Han Niu, Jiang Chen, Hang Xiang
doaj +1 more source
Analysis of the kinetic energy recovery behind a tidal stream turbine for various submergence levels
International Marine Energy Journal, 2022 Tidal turbines are commonly deployed at sea sites with water depths of up to 50 m to ease their deployment and quick maintenance operations. In these relatively shallow water depth conditions, the vertical expansion of tidal stream turbine wakes is ...
Pablo Ouro +2 more
doaj +1 more source
Vertical and Spanwise Wake Flow Structures of a Single Spire over Smooth Wall Surface in a Wind Tunnel [PDF]
Journal of Applied Fluid Mechanics, 2023 The aerodynamic interaction between the wake flow structure behind a single spire with a smooth wall boundary layer at a long streamwise location was observed in a wind tunnel experiment.
M. A. Fitriady +2 more
doaj +1 more source
Experimental analysis of the effect of dynamic induction control on a wind turbine wake [PDF]
Wind Energy Science, 2022 Dynamic induction control (DIC) has proven to be an effective method of increasing the power output for a wind farm in both simulation studies and wind tunnel experiments.
D. van der Hoek +5 more
doaj +1 more source