Aerodynamic loads on vehicles due to the gusty bora wind

Kozmar, Hrvoje and Butler, Kyle and Kareem, Ahsan (2012) Aerodynamic loads on vehicles due to the gusty bora wind. = Aerodynamic loads on vehicles due to the gusty bora wind. In: 7th International Congress of Croatian Society of Mechanics, 22.-25.05.2012., Zadar, Hrvatska.

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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.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): Bora wind, aerodynamic loads on vehicles, wind-tunnel experiments
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 1400 Department of fluid mechanics > 1420 Chair of environment and construction aerodynamics
Indexed in Web of Science: No
Indexed in Current Contents: No
Date Deposited: 13 Apr 2016 11:48
Last Modified: 27 Jul 2017 11:05

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