The Effect of Front-Edge Rounding and Rear-Edge Shaping on the Aerodynamic Drag of Bluff Vehicles in Ground Proximity

• DOI: 10.4271/850288
• Publication Date: 2010-10-20T18:46:10Z
• Authors: Kevin R. Cooper
• Keywords: Bluff; Rounding; Scale model; Zero-lift drag coefficient

Wind tunnel measurements on a rectangular vehicle-like shape and two detailed, scale-model trucks have been employed to define the front rear edge geometries that minimize aerodynamic drag. Optimum configurations are identified with sufficient detail for commercial vehicle design purposes. Comparisons of model-scale limited full-scale straight truck in large wind support interpretation these test results.