scholarly journals Safety investigation on rail and road vehicles exposed to cross-wind: wind tunnel tests and multi-body simulations

2007 ◽  
Author(s):  
F. Cheli ◽  
R. Corradi ◽  
D. Rocchi ◽  
E. Sabbioni ◽  
G. Tomasini
Keyword(s):  
Wind Tunnel ◽  
Road Vehicles ◽  
Wind Tunnel Tests ◽  
Multi Body

Some Aerodynamic Aspects of Safety in Road Vehicles: First Paper: Aerodynamic Lift Characteristics of Cars

1973 ◽  
Vol 187 (1) ◽  
pp. 333-347
Author(s):  
G. W. Carr
Keyword(s):  
Wind Tunnel ◽  
Variable Geometry ◽  
Road Vehicles ◽  
Wind Tunnel Tests ◽  
Ground Clearance ◽  
Car Model ◽  
Trailing Edges ◽  
Principal Factors ◽  
Basic Parameters ◽  
Aerodynamic Lift

The principal factors determining the aerodynamic lift of cars are identified from the results of an extensive series of wind-tunnel tests involving simple models of bluff and streamlined form and a variable-geometry saloon-car model. The influence is examined of basic parameters such as camber, incidence, thickness, ground clearance, and underbody roughness. An indication is also given of the extent to which the lift is modified by the squaring of individual edges, particularly the horizontal leading and trailing edges; and the effectiveness of devices fitted under the nose of a car to reduce lift is discussed.

Wind tunnel tests on heavy road vehicles: Cross wind induced loads—Part 2

2011 ◽  
Vol 99 (10) ◽  
pp. 1011-1024 ◽  
Author(s):  
F. Cheli ◽  
F. Ripamonti ◽  
E. Sabbioni ◽  
G. Tomasini
Keyword(s):  
Wind Tunnel ◽  
Road Vehicles ◽  
Wind Tunnel Tests

scholarly journals Wind tunnel tests for mean wind loads on road vehicles

2016 ◽  
Vol 150 ◽  
pp. 15-21 ◽  
Author(s):  
Xianzhi Liu ◽  
Yan Han ◽  
C.S. Cai ◽  
Marc Levitan ◽  
Dimitris Nikitopoulos
Keyword(s):  
Wind Tunnel ◽  
Wind Loads ◽  
Road Vehicles ◽  
Wind Tunnel Tests

Wind tunnel tests on heavy road vehicles: Cross wind induced loads—Part 1

2011 ◽  
Vol 99 (10) ◽  
pp. 1000-1010 ◽  
Author(s):  
F. Cheli ◽  
R. Corradi ◽  
E. Sabbioni ◽  
G. Tomasini
Keyword(s):  
Wind Tunnel ◽  
Road Vehicles ◽  
Wind Tunnel Tests

Some Aerodynamic Aspects of Safety in Road Vehicles: First Paper: Aerodynamic Lift Characteristics of Cars

1973 ◽  
Vol 187 (1) ◽  
pp. 333-347 ◽  
Author(s):  
G. W. Carr
Keyword(s):  
Wind Tunnel ◽  
Variable Geometry ◽  
Road Vehicles ◽  
Wind Tunnel Tests ◽  
Ground Clearance ◽  
Car Model ◽  
Trailing Edges ◽  
Principal Factors ◽  
Basic Parameters ◽  
Aerodynamic Lift

The principal factors determining the aerodynamic lift of cars are identified from the results of an extensive series of wind-tunnel tests involving simple models of bluff and streamlined form and a variable-geometry saloon-car model. The influence is examined of basic parameters such as camber, incidence, thickness, ground clearance, and underbody roughness. An indication is also given of the extent to which the lift is modified by the squaring of individual edges, particularly the horizontal leading and trailing edges; and the effectiveness of devices fitted under the nose of a car to reduce lift is discussed.

scholarly journals Wind-Induced Phenomena in Long-Span Cable-Supported Bridges: A Comparative Review of Wind Tunnel Tests and Computational Fluid Dynamics Modelling

2021 ◽  
Vol 11 (4) ◽  
pp. 1642
Author(s):  
Yuxiang Zhang ◽  
Philip Cardiff ◽  
Jennifer Keenahan
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Wind Tunnel ◽  
Careful Analysis ◽  
Wind Effects ◽  
Wind Tunnel Tests ◽  
Long Span Bridges ◽  
Long Span ◽  
Comparative Review ◽  
Dynamics Modelling

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.

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

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

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

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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