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The Windshear Rolling Road Wind Tunnel
ISSN: 1946-3995, e-ISSN: 1946-4002
Published April 16, 2012 by SAE International in United States
Citation: Walter, J., Bordner, J., Nelson, B., and Boram, A., "The Windshear Rolling Road Wind Tunnel," SAE Int. J. Passeng. Cars - Mech. Syst. 5(1):265-288, 2012, https://doi.org/10.4271/2012-01-0300.
The Windshear Rolling Road Wind Tunnel in Concord, North Carolina, is a full-scale commercial wind tunnel conceived primarily as a facility to serve the various motorsports communities, although it has already expanded beyond that base into production car and truck testing. The wind tunnel is a 3/4-open-jet, closed-return design with a 16.7 m₂ nozzle, a wide-belt moving ground plane, and a top speed of 80 m/s (180 mph). This paper describes the project history and design philosophy of the wind tunnel, commissioning results, and an overview of the force measurement methods on the wide-belt rolling road. Some results of a recently completed correlation program are presented, along with performance validation results that include repeatability and reproducibility as well as an assessment of boundary corrections.
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