Results 21 to 30 of about 24,309 (310)
Wind shear for small thickness layers [PDF]
Conference on Aerospace Meteorology, 1966 Abstract Wind shear in the lowest 10,000 it of the atmosphere was investigated utilizing two or more cinetheodolites (Contraves cameras) tracking a smooth spherical 100-gm balloon. These data indicate that a simple power law relationship exists between 1) layer thickness and the magnitude of the vector shear, 2) layer thickness and the magnitude of the
Manuel Armendariz, Laurence J. Rider
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Acoustic wind and wind-shear measuring system [PDF]
The Journal of the Acoustical Society of America, 1976 An acoustic wind-profiling system designed to detect hazardous wind-shear conditions in the airport environment has been developed during the past four years. The system installed at Dulles International Airport consists of a vertically pointed transmitter surrounded by three receivers 290-m distant and separated by 120° in azimuth.
P. A. Mandics, D. W. Beran
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Tidal wind shear observed by meteor radar and comparison with sporadic E occurrence rates based on GPS radio occultation observations [PDF]
Advances in Radio Science, 2019 We analyze tidal (diurnal, semidiurnal, terdiurnal, quarterdiurnal) phases and related wind shear in the mesosphere/lower thermosphere as observed by meteor radar over Collm (51.3∘ N, 13.0∘ E).
C. Jacobi, C. Arras
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Low Level Turbulence Detection For Airports
International Journal of Aviation, Aeronautics, and Aerospace, 2019 —— Low level wind shear and turbulence present a serious safety risk to aircraft during the approach, landing and take-off phases. Despite many advances in on-board and ground based warning systems. Wind shear remains a formidable force that coupled with
Anthony O' Connor, Derek Kearney
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, 2020 This dataset contains source code for the RAMS model simulations and Matlab analysis documented and described in the associated publication, "Shear-Parallel Tropical Convective Systems: Importance of Cold Pools and Wind Shear."The impact of cold pools on
van den Heever, Susan C. +3 more
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Power and Wind Shear Implications of Large Wind Turbine Scenarios in the US Central Plains
, 2020 Continued growth of wind turbine physical dimensions is examined in terms of the implications for wind speed, power and shear across the rotor plane.
Sara C. Pryor +3 more
core +1 more source
From shear to veer: theory, statistics, and practical application [PDF]
Wind Energy Science, 2023 In the past several years, wind veer – sometimes called “directional shear” – has begun to attract attention due to its effects on wind turbines and their production, particularly as the length of manufactured turbine blades has increased.
M. Kelly, M. P. van der Laan
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Applied Sciences, 2020 Noise generated from wind turbines is a big challenge for the wind energy industry to develop further onshore wind energy. The traditional way of reducing noise is to design low noise wind turbine airfoils and blades.
Mingyue Zhou +3 more
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Hong Kong Airport Wind Shear Now-Casting System Development and Evaluation
Atmosphere, 2022 A wind-shear now-casting system for Hong Kong International Airport is described. The system has been configured and run retrospectively for the period from January to April 2018 at 20-min intervals using two sets of meteorological inputs to quantify ...
Jenny Stocker +6 more
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Numerical Simulation of Wind Turbine Aerodynamic Characteristics under Wind Shear Based on Lattice-Boltzmann Method [PDF]
E3S Web of Conferences, 2021 In order to study the influence of wind shear on the aerodynamic characteristics of large wind turbines, taking the 5MW wind turbine blade model published by NREL as the research object, large eddy simulation (LES) of wind turbines was carried out by ...
Yuan Chengdong +4 more
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