THE USE OF SMALL SCALE WIND TUNNEL DATA IN THE DESIGN OF CAB-OVER-ENGINE TRACTOR/TRAILER COMBINATIONS
A critical assessment of the usefulness of small scale wind tunnel data in optimizing the design of heavy duty cab-over-engine tractor/trailer combinations is presented. The correct selection of cab leading edge radii has long been recognized as a dramatic means of reducing aerodynamic drag and hence fuel consumption. However, the validity of extrapolating small scale wind tunnel designs into full size vehicles has been a source of continuing controversy. Results of literature search and original wind tunnel studies lead to the conclusion that carefully conducted one-tenth scale wind tunnel investigations can be used to select accurate and somewhat conservative fullscale designs.
Warrendale, PA USA 15096
- Kangas, T
- Publication Date: 1979-8-9
- Pagination: 9 p.
- TRT Terms: Aerodynamics; Cabs (Vehicle compartments); Drag; Engines; Fuel consumption; Tractor trailer combinations; Wind tunnels
- Subject Areas: Energy; Highways; Motor Carriers; Vehicles and Equipment;
- Accession Number: 00308146
- Record Type: Publication
- Report/Paper Numbers: SAE 790767
- Files: TRIS
- Created Date: May 7 1980 12:00AM