EXPERIMENTAL AERODYNAMIC CHARACTERISTICS OF VEHICLES TRAVELING IN TUBES

A simplified theoretical model for a vehicle traveling through an unvented tube under equilibrium incompressible conditions was used to guide the test program, reduce the data, and determine the self-consistency of the results. The results were then used to establish values for the arbitrary coefficients in the theoretical model. Substantial progress was made in understanding the aerodynamic characteristics of vehicles traveling in tubes as exemplified by the good agreement of the theoretical model predictions with the experimental data throughout the Reynolds number range (three orders of magnitude, up to that for an actual full-scale system) and the many geometric variables tested. (Author)

• Corporate Authors:

  Jet Propulsion Laboratory

  California Institute of Technology, 4800 Oak Grove Drive
  Pasadena, CA  United States  91103
• Authors:
  • KURTZ, D W
  • Dayman, B J
• Publication Date: 1975-7-15

Media Info

• Pagination: 69 p.

Subject/Index Terms

• TRT Terms: Aerodynamics; City planning; Drag; Fluid mechanics; Heat transfer; Intelligent transportation systems; Pneumatic conveyors; Railroad transportation; Rapid transit; Reynolds number; Theoretical studies; Tubing
• Uncontrolled Terms: Scaling laws
• Old TRIS Terms: Advanced systems; Aerodynamic characteristics; Funnels; Incompressible flow; Rapid transit systems; Tube systems; Tube vehicle drag; Tube vehicle systems
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; Public Transportation; Railroads;

Filing Info

• Accession Number: 00093733
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NASA-CR-143490
• Contract Numbers: NAS7-100
• Files: NTIS, TRIS
• Created Date: Feb 4 1981 12:00AM