Wind-Tunnel Tests of a High Lift Generation and Stall/Spin Recovery System

Engineers, architects, planners and designers must carefully consider the effects of wind in their work. Due to their slender and flexible nature, long-span bridges can often experience vibrations due to the wind, and so the careful analysis of wind effects is paramount. Traditionally, wind tunnel tests have been the preferred method of conducting bridge wind analysis. In recent times, owing to improved computational power, computational fluid dynamics simulations are coming to the fore as viable means of analysing wind effects on bridges. The focus of this paper is on long-span cable-supported bridges. Wind issues in long-span cable-supported bridges can include flutter, vortex-induced vibrations and rain–wind-induced vibrations. This paper presents a state-of-the-art review of research on the use of wind tunnel tests and computational fluid dynamics modelling of these wind issues on long-span bridges.

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Galloping vibration of stay cable installed with a rectangular lamp: Field observations and wind tunnel tests

Journal of Wind Engineering and Industrial Aerodynamics ◽

10.1016/j.jweia.2021.104685 ◽

2021 ◽

Vol 215 ◽

pp. 104685

Author(s):

An Miao ◽

Li Shouying ◽

Liu Zhiwen ◽

Yan Banfu ◽

Li Longan ◽

...

Keyword(s):

Wind Tunnel ◽

Field Observations ◽

Stay Cable ◽

Wind Tunnel Tests

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Wind tunnel tests and dynamic analysis of wind-induced response of a transmission tower on a hill

Advances in Structural Engineering ◽

10.1177/13694332211033960 ◽

2021 ◽

pp. 136943322110339

Author(s):

Jian Guo ◽

Changliang Xiao ◽

Jiantao Li

Keyword(s):

Wind Tunnel ◽

Wind Field ◽

Dynamic Responses ◽

Interactive Effects ◽

Induced Response ◽

Transmission Tower ◽

Structural Dynamic ◽

Wind Tunnel Tests ◽

Hill Slope ◽

The Hill

A hill with a lattice transmission tower presents complex wind field characteristics. The commonly used computational fluid dynamics (CFD) simulations are difficult to analyze the wind resistance and dynamic responses of the transmission tower due to structural complexity. In this study, wind tunnel tests and numerical simulations are conducted to analyze the wind field of the hill and the dynamic responses of the transmission tower built on it. The hill models with different slopes are investigated by wind tunnel tests to measure the wind field characteristics, such as mean speed and turbulence intensity. The study shows that the existence of a transmission tower reduces the wind speed on the leeward slope significantly but has little effect on the windward slope. To study the dynamic behavior of the transmission tower, a hybrid analysis procedure is used by introducing the measured experimental wind information to the finite element tower model established using ANSYS. The effects of hill slope on the maximum displacement response of the tower are studied. The results show that the maximum value of the response is the largest when the hill slope is 25° compared to those when hill slope is 15° and 35°. The results extend the knowledge concerning wind tunnel tests on hills of different terrain and provide a comprehensive understanding of the interactive effects between the hill and existing transmission tower regarding to the wind field characteristics and structural dynamic responses.

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WENEMOR: Wind Tunnel Tests for the Evaluation of the Installation Effects of Noise Emissions of an Open Rotor Advanced Regional Aircraft

19th AIAA/CEAS Aeroacoustics Conference ◽

10.2514/6.2013-2092 ◽

2013 ◽

Cited By ~ 6

Author(s):

Gareth J. Bennett ◽

John Kennedy ◽

Massimiliano Di Giulio

Keyword(s):

Wind Tunnel ◽

Wind Tunnel Tests ◽

Installation Effects ◽

Open Rotor

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