Naslov
Aerodynamic loads on vehicles due to the gusty bora wind

Autori
Kozmar, Hrvoje ; Butler, Kyle ; Kareem, Ahsan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 7th International Congress of Croatian Society of Mechanics / Virag, Zdravko ; Kozmar, Hrvoje ; Smojver, Ivica - Zagreb : Studio Hrg, 2012

ISBN
978-953-6986-06-4

Skup
7th International Congress of Croatian Society of Mechanics

Mjesto i datum
Zadar, Hrvatska, 22.05.2012. - 25.05.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Bora wind; aerodynamic loads on vehicles; wind-tunnel experiments

Sažetak
Transient aerodynamic loads on a vehicle placed on a bridge were experimentally simulated utilizing the Flow Field Simulator (TFFS) at the University of Notre Dame. A van model was exposed to an air flow, which consisted of an intermittent switching between ‘regular’ wind (lower velocity) and wind gusts (higher velocity). This experimentally generated flow can be assumed to be a valid approximation of the bora wind occurring at the Croatian coast. Side and lift forces, as well as overturning moments experienced by the van, were investigated in this study, as vehicles on bridges are particularly sensitive to wind-induced course deviation and overturning accidents. Experimental results indicate that wind gusting similar to the bora wind causes the turbulent wind energy to shift toward lower frequencies that can significantly deteriorate the vehicle stability, as just 2s to 3s are required to blow over a vehicle.

Izvorni jezik
Engleski

Znanstvena područja
Arhitektura i urbanizam, Građevinarstvo, Strojarstvo

POVEZANOST RADA