Investigation of Drag Reduction Technologies for Light-Duty Vehicles
Using Surface, Wake and Underbody Pressure Measurements to Complement
Aerodynamic Drag Measurements
Abstract:Amulti-year, multi-vehicle study was conducted to quantify the aerodynamic drag changes associated with drag reduction technologies for light-duty vehicles. Various technologies were evaluated through fullscale testing in a large low-blockage closed-circuit wind tunnel equipped with a rolling road, wheel rollers, boundary-layer suction and a system to generate roadrepresentative turbulent winds. The technologies investigated include active grille shutters, production and custom underbody treatments, air dams, … Show more
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