AN EXPERIMENTAL INVESTIGATION OF THE UNSTEADY AERODYNAMICS OF PASSING HIGHWAY VEHICLES

The development and applied research program consisted of the construction and development of a moving model facility and measurements of bus and truck induced aerodynamic disturbances on 1/10 scale models traveling at actual highway speeds using the completed facility. The highway aerodynamic test facility, built for this purpose, consists of means for propelling two models along a 225 foot long track at speeds up to 70 mph simultaneously; a system for retrieving the data from the models while in motion, and a large free jet wind tunnel for producing sidewinds. Data produced by this facility is scaled by means of well established aerodynamic scaling laws to predict the forces produced on full scale cars as they pass closely to buses and trucks under a variety of typical highway situations.

• Supplemental Notes:
  • See also PB-210 834.
• Corporate Authors:

  Developmental Sciences, Incorporated

  Aerospace Technology Division
  City of Industry, CA  United States 
• Authors:
  • BROWN, G J
  • SEEMANN, G R
• Publication Date: 1972-5

Media Info

• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Aerodynamic force; Aerodynamics; Anemometry; Buses; Highway safety; Highways; Mathematical prediction; Motor vehicles; Passenger vehicles; Simulation; Test facilities; Training simulators; Trucks; Velocity; Weighing devices; Wind
• Uncontrolled Terms: Interaction; Model tests; Scale
• Old TRIS Terms: Vehicle passing
• Subject Areas: Data and Information Technology; Highways; Motor Carriers; Public Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00037324
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Final Rpt
• Contract Numbers: DOT-HS-102-1-147
• Files: TRIS
• Created Date: Nov 10 2002 12:00AM