The assessment of wind tunnel testing techniques for ground vehicles in cross winds

Baker, Chris; Robinson, Clive

doi:10.1016/0167-6105(90)90058-k

Cited by 19 publications

(7 citation statements)

References 5 publications

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“…Table 4 (Dt R ¼ 2 s and Dt G ¼3 s). represents 0.0125 Hz and 0.02 Hz (50 s to 80 s) full-scale, respectively, which is long enough to blow over a van, as just 2 s to 3 s is required to blow over a vehicle (Baker and Robinson, 1990). As wind gusts become stronger, the overall unsteady aerodynamic loads increase (the magnitude of low frequency peak), creating a corresponding increase in the risk of overturning.…”

Section: Unsteady Aerodynamic Loadsmentioning

confidence: 98%

Transient cross-wind aerodynamic loads on a generic vehicle due to bora gusts

Kozmar

Butler

Kareem

2012

Journal of Wind Engineering and Industrial Aerodynamics

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Section: Unsteady Aerodynamic Loadsmentioning

confidence: 98%

Transient cross-wind aerodynamic loads on a generic vehicle due to bora gusts

Kozmar

Butler

Kareem

2012

Journal of Wind Engineering and Industrial Aerodynamics

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“…Several studies have examined the theoretical effects of high winds on road transportation (Baker & Robinson, 1990;Baker, 1991), although interest in actual windrelated road accidents has been growing during the past few years. This is partly as a result of the concern generated by the severe storms of October 1987 and January 1990, which together claimed 65 lives in Britain (although by no means all were the result of involvement in road accidents).…”

Section: Adverse Weather and Road Accidents: Past Studiesmentioning

confidence: 99%

The temporal distribution of road accidents in adverse weather

Edwards

1999

Met. Apps

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This paper undertakes a preliminary study into the temporal recording of road accidents in adverse weather. Monthly police accident data, by county, have been utilised for England and Wales, and weather-related road accident findings compared with the general weather patterns experienced over the British Isles. The results show that seasonal patterns to weather-related road accidents match the occurrence of hazardous conditions, with regional variations to weather patterns identifiable within the accident data.

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“…for high-sided vehicles like buses and trucks, overturning is more likely to occur than the other two types of accidents. A gust duration of only 2 s to 3 s was seen to be sufficient to blow over a vehicle, Baker and Robinson (1990). The wind speed at which the accident criteria are exceeded is a function of vehicle speed, wind direction, and the infrastructure.…”

Section: Introductionmentioning

confidence: 95%

Experimental modeling of Bora wind loads on vehicles

Kozmar¹,

Kareem²

2022

Rad Hrvatske akademije znanosti i umjetnosti

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the Bora is a very strong and gusty downslope wind that blows from the northeast across the coastal mountain ranges on the eastern coast of the Adriatic Sea. It creates substantial difficulties for engineering infrastructure, traffic, and life in general. While the effects of the quasi-steady turbulent atmospheric boundary layer flow on road vehicles are currently fairly well known, the Bora wind also creates unsteady aerodynamic loads on these vehicles, which are still not fully understood. these gust effects on road vehicles have thus been experimentally examined here. this study was conducted on a small-scale road vehicle model, which to our knowledge is the first study of this type. Particular emphasis was placed on the aerodynamic forces and moments experienced by the road vehicle related to the strength and frequency of the Bora wind gusts, the vertical wind incidence angle, and the vehicle position on the bridge. in the experiments regarding the wind gust strength and frequency, the road vehicle model was placed in the upwind traffic lane at zero horizontal and vertical flow incidence angles. The effect of the vertical wind incidence angle and vehicle position was analyzed for the road vehicle model placed in the upwind, middle, and downwind traffic lanes of the bridge-deck section model, where the horizontal flow incidence angle was zero, while the vertical flow incidence angle was studied from 0° to 50°. The experiments were carried out in the transient flow field simulator of the nathaz modeling laboratory at the University of notre dame, Usa. the results reveal some important findings. Regarding the wind gust strength and frequency experiments, the aerodynamic loads rose linearly with increasing gust strength and were concurrently affected by vortex shedding and wind gusting phenomena. the steady aerodynamic loads were generally higher for a road vehicle closer to the upwind edge of the bridge decks. The wind gusting of the Bora can cause difficulties for the maneuvering of road vehicles and for their stability in the upwind traffic lane, while the risk for road vehicles in the downwind traffic lanes was predominantly a

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The assessment of wind tunnel testing techniques for ground vehicles in cross winds

Cited by 19 publications

References 5 publications

Transient cross-wind aerodynamic loads on a generic vehicle due to bora gusts

Transient cross-wind aerodynamic loads on a generic vehicle due to bora gusts

The temporal distribution of road accidents in adverse weather

Experimental modeling of Bora wind loads on vehicles

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