Browse Publications Technical Papers 901866
1990-09-01

An Application of Wing Aerodynamic Principles to the Reduction of Road Vehicle Air Drag Loads 901866

A wind tunnel program examined front end modifications for Cab-Over-Engine tractors. A Design based on a wing airfoil was used to produce a wind weighted drag reduction of ten percent.
The truck was considered to be a small aspect ratio “Wing” with a plane of symmetry on the road surface. The shape was able to achieve smooth flow at the vehicle side when the incoming flow was yawed from the truck's longitudinal axis. Drag measurements were made and tufts on the body and smoke off the body were observed.
The wind tunnel results were supported by data obtained from a road test. Comments by operators currently driving equipped trucks tend to support the work and point to handling qualities advantages related to the design.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 17% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Development of Devices to Reduce the Aerodynamic Resistance of Trucks

750702

View Details

TECHNICAL PAPER

Development of Devices to Reduce the Aerodynamic Resistance of Trucks

750702

View Details

TECHNICAL PAPER

Wind Tunnel Investigation of an Inflatable Aerodynamic Boattail for Tractor-Trailers

960908

View Details

X