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
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.
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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