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K. M. KWONG,F. W. TEE,J. N. K. LIU,P. W. CHAN
Wind shear, sudden change in the wind direction and speed, is a familiar hazard to aviation as well as a complex and hard-to-predict phenomenon. The causes of wind shear may be different in different locations. In some places it is caused by microbursts,...
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Simin Gao, Hexia Huang, Yupeng Meng, Huijun Tan, Mengying Liu and Kun Guo
In this paper, a novel flow perturbation model meant to investigate the effects of incoming wind shear on a hypersonic inlet/isolator is presented. This research focuses on the transient shock/boundary layer interaction and shock train flow evolution in ...
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Shijun Zhao and Yulong Shan
Low-level wind shear is a vital weather process affecting aircraft safety while taking off and landing and is known as the ?aircraft killer? in the aviation industry. As a result, effective monitoring and warning are required. Several ramps detection alg...
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Lei Han, Qiyan Ji, Xiaoyan Jia, Yu Liu, Guoqing Han and Xiayan Lin
Deep learning methods have excellent prospects for application in wave forecasting research. This study employed the convolutional LSTM (ConvLSTM) algorithm to predict the South China Sea (SCS) significant wave height (SWH). Three prediction models were ...
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Bin Wang, Lei Wu, Ning Zhao, Tianran Liu and Naoki Hirose
The features of coastal upwelling in the southwestern Yellow Sea were investigated based on oceanology data from a research cruise and a regional circulation model. The observation data suggest that a relatively colder and saltier water core exists from ...
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Yu-Ting Wu and Fernando Porté-Agel
A numerical study of atmospheric turbulence effects on wind-turbine wakes is presented. Large-eddy simulations of neutrally-stratified atmospheric boundary layer flows through stand-alone wind turbines were performed over homogeneous flat surfaces with f...
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Malek Abid, Christian Kharif, Hung-Chu Hsu and Yang-Yih Chen
The theory of surface wave generation, in viscous flows, is modified by replacing the linear-logarithmic shear velocity profile, in the air, with a model which links smoothly the linear and logarithmic layers through the buffer layer. This profile includ...
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Minghao Wu, Leen De Vos, Carlos Emilio Arboleda Chavez, Vasiliki Stratigaki, Tiago Fazeres-Ferradosa, Paulo Rosa-Santos, Francisco Taveira-Pinto and Peter Troch
This paper presents a series of large-scale wave flume experiments on the scour protection damage around a monopile under combined waves and current conditions with model scales of 1:16.67 and 1:8.33. The main objective is to compare the damage data obta...
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Christian Kharif and Malek Abid
The generation of wind waves at the surface of a pre-existing underlying vertically sheared water flow of constant vorticity is considered. Emphasis is put on the role of the vorticity in water on wind-wave generation. The amplitude growth rate increases...
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Wenbo Wang, Hongchao Dun, Wei He and Ning Huang
As part of a comprehensive environmental assessment of the Dun-Gel railway project located in Dunhuang city, Gansu Province, China, a wind tunnel experiment was proposed to predict surface shear stress changes on a sand dune when a bridge was built upstr...
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Sara Pascolo, Marco Petti and Silvia Bosa
Lagoons and coastal semi-enclosed basins morphologically evolve depending on local waves, currents, and tidal conditions. In very shallow water depths, typical of tidal flats and mudflats, the bed shear stress due to the wind waves is a key factor govern...
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Wojciech Pilorz, Igor Laskowski, Ewa Lupikasza and Mateusz Taszarek
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Himanshu Gaur and Ravindra Kumar Goliya
As the height of buildings increases, effect of shear lag also becomes considerable in the design of high rise buildings. In this paper, shear lag effect in tall buildings of heights, i.e., 120, 96, 72, 48 and 36 stories of which aspect ratio ranges from...
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Benedikt Ernst and Jörg R. Seume
The main contributing factors to unsteady loading of Offshore Wind Turbines (OWT) are wind shear, turbulence, and waves. In the present paper, the turbulence intensity and the wind shear exponent are investigated. Using data from the FINO 1 research plat...
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Nereyda Pupo Sintras, Carlos A. Recarey Morfa
Pág. Page 95 - 120
Presented of illustrated form the application of the method of distribution of orizontal:PPG modified. The method is applied at a building of six levels, whose lateral stabilizers are integrated for shear walls and frames distributed in plant of asymmet...
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M. TORRES BRIZUELA,M. NICOLÍNI
This paper presents results from numerical simulations of a severe storm producing a microburst, using a convective numerical model. The numerical experiments are done in order to understand the role of the environmental vertical wind profile and/or ...
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Fayun Liang, Zewang Zhang, Chen Wang, Xiaoqiang Gu, Yifeng Lin and Wei Yang
Offshore wind power, as an efficient renewable energy source, is being vigorously developed nowadays. However, the liquefaction of marine sand due to earthquakes brings potential safety hazards to the wind turbine structures. In this study, a series of r...
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Wayne Formosa, Tonio Sant, Claire De Marco Muscat-Fenech and Massimo Figari
Following the International Maritime Organization?s goal to reduce greenhouse gas emissions, the interest in the application of wind-assisted ship propulsion (WASP) in maritime transportation is on the rise. Although a variety of WASP systems exist, the ...
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Jin Tan, Weihao Hu, Xiaoru Wang and Zhe Chen
This paper describes a frequency domain approach for evaluating the impact of tower shadow and wind shear effects (TSWS) on tie-line power oscillations. A simplified frequency domain model of an interconnected power system with a wind farm is developed. ...
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Xin Cai, Yazhou Wang, Bofeng Xu and Junheng Feng
As a result of the large-scale trend of offshore wind turbines, wind shear and turbulent wind conditions cause significant fluctuations of the wind turbine?s torque and thrust, which significantly affect the service life of the wind turbine gearbox and t...
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