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.

Media Info

  • Pagination: 9 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00308146
  • Record Type: Publication
  • Report/Paper Numbers: SAE 790767
  • Files: TRIS
  • Created Date: May 7 1980 12:00AM