THE AERODYNAMIC ANALYSIS OF SINGLE AND MULTIPLE VEHICLES ENTERING AND TRAVELING IN OPEN TUNNELS

The analyses required to calculate the aerodynamic effects of tunnel entry, tunnel venting and multiple vehicle motions in open ended tunnels are presented. Results for several cases of open ended tunnel travel and various entry configurations are presented and described. The effects of an earlier vehicle's motion on the pressure peak associated with a second vehicle entering a tunnel are presented and discussed.

• Record URL:
  • https://railroads.dot.gov/elibrary/aerodynamic-analysis-single-and-multiple-vehicles-entering-and-traveling-open-tunnels
• 
• Corporate Authors:

  Mitre Corporation

  1820 Dolley Madison Boulevard
  McLean, VA  United States  22102

  Federal Railroad Administration

  Office of Research and Development, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Strom, C R
• Publication Date: 1975-1

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: 43 p.

Subject/Index Terms

• TRT Terms: Air resistance; Drag; Environmental quality; Mechanical resistance; Railroad trains; Structural design; Train track dynamics; Tunnels
• Uncontrolled Terms: Tunnel design
• Old TRIS Terms: Train resistance; Tunnel environment
• Subject Areas: Bridges and other structures; Environment; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00098076
• Record Type: Publication
• Source Agency: Federal Railroad Administration
• Report/Paper Numbers: FRA-ORD&D-75-16 Tech. Rpt.
• Contract Numbers: DOT-FR-54090
• Files: NTIS, TRIS, USDOT
• Created Date: Aug 13 1975 12:00AM