Results 51 to 60 of about 221,361 (152)
Wind Energy, 2022 Wind turbine wakes can be predicted somewhat accurately with mesoscale numerical models, such as the Weather Research and Forecast (WRF) model, via a wind farm parameterization (WFP) that treats the effects of the wakes, which are sub‐grid features, on ...
Yulong Ma +2 more
doaj +1 more source
Analytical modelling prediction by using wake oscillator model for vortex-induced vibrations
Journal of Mechanical Engineering and Sciences, 2017 Explorations by oil and gas companies have moved from shallow to deep water to satisfy consumers' changing needs. A circular- shaped cylinder structure placed in deep water is also known spar platform, is normally floated and subjected to severe ...
W.N.W. Hussin +3 more
doaj +1 more source
Energies, 2020 In this study, the new computational fluid dynamics (CFD) porous disk (PD) wake model was proposed in order to accurately predict the time-averaged wind speed deficits in the wind turbine wake region formed on the downstream side by the 2-MW wind turbine
Takanori Uchida +6 more
doaj +1 more source
Compressor and fan wake characteristics [PDF]
A triaxial probe and a rotating conventional probe, mounted on a traverse gear operated by two step motors were used to measure the mean velocities and turbulence quantities across a rotor wake at various radial locations and downstream stations.
Hah, C. +3 more
core +4 more sources
First identification and quantification of detached-tip vortices behind a wind energy converter using fixed-wing unmanned aircraft system [PDF]
Wind Energy Science, 2019 In the present study, blade-tip vortices have been experimentally identified in the wake of a commercial wind turbine using the Multi-purpose Airborne Sensor Carrier Mark 3 (MASC Mk 3) unmanned aircraft system (UAS) of the University of Tübingen.
M. Mauz +4 more
doaj +1 more source
Measured and calculated characteristics of wind turbine noise [PDF]
, 1981 The results of an analytical and experimental investigation of wind turbine noise are presented. Noise calculations indicate that for configurations with the rotor downwind of the support tower, the primary source of noise is the rapid change in rotor ...
Greene, G. C.
core +1 more source
EnergiesIn response to the critical demand for improved characterization of atmospheric stability effects in wind turbine wake prediction, this study proposes and systematically validates a new analytical wake model that incorporates atmospheric stability ...
Xiangyan Chen +5 more
doaj +1 more source
Installed performance assessment of a boundary layer ingesting distributed propulsion system at design point [PDF]
, 2016 Boundary layer ingesting systems have been proposed as a concept with great potential for reducing the fuel consumption of conventional propulsion systems and the overall drag of an aircraft.
Goldberg, Chana +3 more
core +1 more source
Baroclinic geostrophic adjustment in a rotating circular basin [PDF]
, 2004 Baroclinic geostrophic adjustment in a rotating circular basin is investigated in a laboratory study. The adjustment process consists of a linear phase before advective and dissipative effects dominate the response for longer time. This work describes in
Imberger, J +4 more
core +1 more source
Vortex-enhanced propulsion [PDF]
, 2011 It has been previously suggested that the generation of coherent vortical structures in the near-wake of a self-propelled vehicle can improve its propulsive efficiency by manipulating the local pressure field and entrainment kinematics.
Dabiri, John O. +2 more
core