Results 31 to 40 of about 18,894 (313)
A non-symmetric Gaussian wake model for lateral wake-to-wake interactions
Journal of Physics: Conference Series, 2023 Abstract In this paper, we propose a new non-symmetric Gaussian wake model, which allows for different lateral expansions on the two sides of a wake to account for its interaction with neighbouring wakes. The proposed model is formulated following classical speed-deficit assumptions and momentum conservation.
Vad, Andreas +2 more
openaire +2 more sources
Numerical investigation of transitional supersonic axisymmetric wakes
, 2006 Transitional supersonic axisymmetric wakes are investigated by conducting various numerical experiments. The main objective is to identify hydrodynamic instability mechanisms in the flow at M=2.46 for several Reynolds numbers, and relating these to ...
Sandberg, Richard D., Fasel, Hermann F.
core +1 more source
Journal of Marine Science and EngineeringDuring the expansion of a wind farm, the strategic placement of wind turbines can significantly improve wind energy utilization. This study investigates the evolution of wake turbulence in a wind farm after introducing smaller wind turbines within the ...
Lidong Zhang +7 more
doaj +1 more source
Clocking In Turbines: Remarks On Physical Nature And Geometric Requirements
Polish Maritime Research, 2015 The article discusses two issues relating to the clocking phenomenon in turbines, which are the physical course of stator wake deformation in rotor passages and its further interaction with downstream stator blades, and turbine geometry parameters which ...
Swirydczuk Jerzy
doaj +1 more source
Bio-inspired nano rotor investigation based on UVLM
Biosurface and Biotribology, 2019 Nano rotor is of great value in military and civilian applications. Due to its nano size, it works at an ultra-low Reynolds number and aerodynamic performance deteriorates dramatically.
Zhao Shanyong +4 more
doaj +1 more source
Turbulence Characteristics of the Flexible Circular Cylinder Agitator
Fluids, 2021 A flexible protruding surface was employed as the flow disturbance to promote turbulence at the area of interest. An ultrasonic velocity profiler, UVP technique, was used to study the mean and fluctuating flow properties in the near wake of the rigid and
Sharul Sham Dol +4 more
doaj +1 more source
Active aerodynamics control of simplified vehicle body in a crosswind condition
The Journal of Engineering, 2020 In this study, the authors used a steady jet from a slit nozzle to control the bi-stable aerodynamics of a simple vehicle model under crosswind conditions.
Takuji Nakashima +6 more
doaj +1 more source
Characterizing the Wake Effects on Wind Power Generator Operation by Data-Driven Techniques
Energies, 2023 Wakes between neighboring wind turbines are a significant source of energy loss in wind farm operations. Extensive research has been conducted to analyze and understand wind turbine wakes, ranging from aerodynamic descriptions to advanced control ...
Davide Astolfi +2 more
doaj +1 more source
Wake-up (or Wake-up for) Stroke: A Treatable Stroke [PDF]
The Neuroradiology Journal, 2013 A 74-year-old man was admitted to the Emergency Room of our institution with worsening dysarthria, left-side weakness and hypoesthesia (NIHSS score: 5) since his awakening at 7:30 a.m. The evening before, he had gone to sleep at 10:30 p.m. Brain computed tomography (CT) and cervicocranial CT angiography showed low density attenuation of the right ...
Bracco, S. +7 more
openaire +3 more sources
Tidal mitigation of offshore wind wake effects in coastal seas
Frontiers in Marine Science, 2022 With increasing offshore wind development, more and more marine environments are confronted with the effects of atmospheric wind farm wakes on hydrodynamic processes.
Nils Christiansen +3 more
doaj +1 more source