Wall interference correction to drag measurements in automotive wind tunnels
Identifieur interne : 003F32 ( Main/Exploration ); précédent : 003F31; suivant : 003F33Wall interference correction to drag measurements in automotive wind tunnels
Auteurs : M. Mokry [Canada]Source :
- Journal of Wind Engineering & Industrial Aerodynamics [ 0167-6105 ] ; 1995.
Abstract
A low-order panel method has been devised for calculating wall interference corrections to the measured drag force in automotive wind tunnels with closed, 3 4-open or slotted-wall test sections. The method is applied to the Motor Industry Research Association (MIRA) generic car model, tested in three working sections of the German-Dutch Wind Tunnel (DNW), and to three subscale models tested in the DSMA closed-circuit pilot wind tunnel with closed and slotted walls. The calculations show that the drag measurements in closed test sections and 3 4-open test sections require negative and positive corrections, respectively, whereas inside a test section with 30% open longitudinally slotted walls the measurement is nearly interference-free.
Url:
DOI: 10.1016/0167-6105(94)00119-X
Affiliations:
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