Results 91 to 100 of about 761,973 (302)
Comparisons of the accuracy of different wake models in wind farm layout optimization
Energy Exploration & Exploitation, 2020 Accurate wake model in wind farm layout optimization can help extracting maximum power generation, minimizing cost of energy and prolonging wind turbines’ lifetime as well.
Xiaoxia Gao +3 more
doaj +1 more source
, 2014 The dynamics of the turbulent three-dimensional wake generated by an axisymmetric bluff body with blunt trailing edge are experimentally and theoretically investigated at a diameter based Reynolds number of 188,000. A detailed analysis of the base pressure measurements shows that the large scale structures of the turbulent three-dimensional wake retain
openaire +3 more sources
New Onset of Fibromyalgia After Exposure to a Combat Environment: A Longitudinal Cohort Study
Arthritis Care &Research, EarlyView.Objective Traumatic life events are hypothesized to be triggers for the onset of fibromyalgia. Posttraumatic stress disorder (PTSD) is a common comorbidity of fibromyalgia. However, limited prospective data are available on the development of fibromyalgia after exposure to high‐magnitude stress.
Jay B. Higgs +15 more
wiley +1 more source
A New Study on the Effect of the Partial Wake Generated in a Wind Farm
EnergiesIn this article, we present an investigative study on the often-overlooked partial wake phenomenon in previous studies concerning wind farm configurations. A partial wake occurs when a portion of the actuator disk of a downstream wind turbine is affected
Said Zergane +4 more
doaj +1 more source
Wind Turbine Wake Modeling in Accelerating Wind Field: A Preliminary Study on a Two-Dimensional Hill
Fluids, 2019 Complex terrain can influence wind turbine wakes and wind speed profiles in a wind farm. Consequently, predicting the performance of wind turbines and energy production over complex terrain is more difficult than it is over flat terrain.
Omar M. A. M. Ibrahim +3 more
doaj +1 more source
Numerical modelling of the aerodynamic interference between helicopter and ground obstacles [PDF]
, 2017 Helicopters are frequently operating in confined areas where the complex flow fields that develop in windy conditions may result in dangerous situations.
Barakos, George N. +3 more
core +1 more source
Polarization wake of penetrating ions: oscillator model [PDF]
The European Physical Journal D, 2012 The wake potential induced by a swift nonrelativistic ion has been studied theoretically for a random stopping medium consisting of quantal-harmonic-oscillator atoms. The primary purpose has been to study the influence of atomic binding on the frequently-studied wake potential in a Fermi gas.
Sigmund, Peter, Schinner, Andreas
openaire +1 more source
Arthritis Care &Research, EarlyView.Objective We examined whether 18 months of strength training in individuals with knee varus alignment and medial tibiofemoral osteoarthritis (OA) reduced knee joint loads during walking compared to an attention control group. Methods This study was a secondary analysis of a randomized clinical trial that compared the effects of strength training to a ...
Stephen P. Messier +12 more
wiley +1 more source
A New Analytical Wake Model for Yawed Wind Turbines
Energies, 2018 A new analytical wake model for wind turbines, considering ambient turbulence intensity, thrust coefficient and yaw angle effects, is proposed from numerical and analytical studies.
Guo-Wei Qian, Takeshi Ishihara
doaj +1 more source
The velocity field of a system of unsteady cycloidal vorticies [PDF]
, 1981 An essential difference between two-dimensional and three-dimensional models of cycloidal rotors, the presence of unsteady trailing cycloidal vorticies in the wake, was studied.
Young, B. J.
core +1 more source