Results 1 to 10 of about 923 (148)

Aerodynamic characteristics of the train traversing the thunderstorm downburst wind field

Advances in Wind Engineering
To investigate the aerodynamic characteristics of the high-speed train as it traverses the thunderstorm downburst wind, a special test device was used to simulate the thunderstorm downburst wind field.
Fei Zhang, Peng Hu, Fei Chen
exaly   +4 more sources

Preliminary study on the causes of a downburst event in Tianjin in the summer of 2017

暴雨灾害, 2022
A severe thunderstorm gale event with several short-term rainfall,hail and downburst occurred in the southwest of Tianjin on 9 July 2017, during which two downbursts attacked successively Duliu Town,Jinghai District,Tianjin.
Yanchun WANG, Yinghua WEI, Nan ZHANG, Minna SUN, Xiaomeng LIN   +4 more
doaj   +1 more source

Numerical Simulation of Long-Span Bridge Response under Downburst: Parameter Optimization Using a Surrogate Model

Mathematics, 2023
Long-span bridges located in thunderstorm-prone areas can potentially be struck by downburst transient winds. In this study, the downburst time-varying mean wind was simulated by an impinging jet model based on computational fluid dynamics (CFD). To make
Yu Feng, Lingfeng Xin, Jianming Hao, Nan Ding, Feng Wang   +4 more
doaj   +1 more source

Numerical Simulation of Characteristics of Wind Field at Bridge Sites in Flat and Gorge Terrains under the Thunderstorm Downburst

Shock and Vibration, 2021
To investigate the effects of thunderstorm downburst on the characteristics of wind field at bridge sites in flat and gorge terrains, firstly, numerical simulation of wind fields in the flat terrain under the thunderstorm downburst was conducted through ...
Peng Hu, Yilin Chen, Yan Han, Fei Zhang, Yongjian Tang   +4 more
doaj   +1 more source

Examination of different wall jet and impinging jet concepts to produce large-scale downburst outflow

Frontiers in Built Environment, 2022
Thunderstorm downburst winds are a major cause of severe damage to buildings and other infrastructure. The initiative of the NSF-NHERI Wall of Wind (WOW) Experimental Facility to design and develop a downburst simulator was established to open new ...
Alvaro Danilo Mejia, Amal Elawady, Amal Elawady, Krishna Sai Vutukuru, Dejiang Chen, Dejiang Chen, Arindam Gan Chowdhury, Arindam Gan Chowdhury   +7 more
doaj   +1 more source

Analysis of early warning of extreme downbursts induced by two supercell storms in the border area between Hebei and Henan Provinces

暴雨灾害, 2022
A severe convective weather event that was caused by multiple supercell storms occurred in the border area between the Hebei and Henan provinces at 16-22 Beijing Time of 31 July 2021.
Yitong WANG, Xiuming WANG, Xiaoding YU
doaj   +1 more source

A Simulation Study on Risks to Wind Turbine Arrays from Thunderstorm Downbursts in Different Atmospheric Stability Conditions

Energies, 2021
Thunderstorm downbursts have been reported to cause damage or failure to wind turbine arrays. We extend a large-eddy simulation model used in previous work to generate downburst-related inflow fields with a view toward defining correlated wind fields ...
Nan-You Lu, Lance Manuel, Patrick Hawbecker, Sukanta Basu   +3 more
doaj   +1 more source

Wind field and pressure characteristics on wind turbine surface under moving thunderstorms

Energy Reports, 2023
Based on computational fluid dynamics and large-eddy simulation technologies, a numerical simulation method of a moving thunderstorm field is established by considering the impinging jet model.
Chuncheng Liu, Siyu Ma, Zhao Yan, Chengbo Li   +3 more
doaj   +1 more source

Analysis of environmental field and radar echo characteristics for an extreme wind and hail event occurred in Guizhou on 15 May 2021

暴雨灾害, 2022
Based on the routine upper-air and surface observations, the observational data from regional automatic weather stations, satellite images, Doppler weather radar products, we have conducted analysis on the environmental field and radar echo ...
Mingfei ZHOU, Xiaoling DU, Jing LUO, Dapeng QI, Wenyu ZHOU   +4 more
doaj   +1 more source

Mesoscale analysis of a downburst process in Yichang three gorges dam area on 29 July 2017

暴雨灾害, 2023
Based on conventional observation data, regional station observation data, EC reanalysis data, FY-2G satellite data, and radar data, a downburst in Yichang on 29 July 2017 was analyzed.
Yu XIA, Fang LI, Miao TANG, Dan YE
doaj   +1 more source