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Aerodynamic loads on a vehicle exposed to cross-wind gusts: An experimental study (CROSBI ID 556496)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Kozmar, Hrvoje ; Butler, Kyle ; Kareem, Ahsan Aerodynamic loads on a vehicle exposed to cross-wind gusts: An experimental study // Proceedings of Seventh Asia-Pacific Conference on Wind Engineering (APCWE-VII). Taipei, 2009

Podaci o odgovornosti

Kozmar, Hrvoje ; Butler, Kyle ; Kareem, Ahsan

engleski

Aerodynamic loads on a vehicle exposed to cross-wind gusts: An experimental study

This paper presents experimental results concerning transient aerodynamic loads experienced by a vehicle. Two vehicle models were tested, one with wheels and the other one without wheels. Both models were separately placed on a bridge deck section and exposed to an air flow which consisted of an intermittent gusting, alternating between two velocity thresholds. Experimental results indicate key features for future investigations: an increase in steady aerodynamic loads in periods of wind gusts and two different unsteady phenomena. Wind gusting affects both vehicle models, exhibited in the power spectra of wind loads fluctuations as a low frequency peak at 0.3 Hz, corresponding to switching between lower and higher velocity, observed in both configurations. Vortex shedding from the bridge predominantly influences unsteady loads on a vehicle without wheels, exhibited in the power spectra of unsteady aerodynamic forces and moments as a strong high frequency peak at 10 Hz due to vortex shedding.

Bluff body aerodynamics; cross-wind gusts; vehicle; bridge; transient aerodynamic loads; experiments

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Podaci o prilogu

2009.

nije evidentirano

objavljeno

Podaci o matičnoj publikaciji

Proceedings of Seventh Asia-Pacific Conference on Wind Engineering (APCWE-VII)

Taipei:

Podaci o skupu

Seventh Asia-Pacific Conference on Wind Engineering (APCWE-VII)

predavanje

08.11.2009-12.11.2009

Taipei, Tajvan

Povezanost rada

Fizika, Građevinarstvo, Tehnologija prometa i transport