MOVEMENT OF NON-STATIONARY AIR IN UNDERGROUND TUNNELS. AN APPROXIMATION METHOD FOR EVALUATING AIR CURRENTS

DIE INSTATIONAERE LUFTSTROEMUNG IN U-BAHN-TUNNELN. EINE NAEHERUNGSLOESUNG ZUR BARECHNUNG DES ANFACHVORGANGES

Equations can be obtained for evaluating air currents produced by trains in tunnels by means of an approximation method of evaluating the increase in speed of an underground trainset as the driver accelerates after stopping in a tunnel. The results of calculations have been compared against results obtained from measurements and both coincide with each other.

• Corporate Authors:

  Verlags AG der Akademischen Technischen Vereine

  Postfach 630
  8021 Zurich,   Switzerland 
• Authors:
  • Rohne, E
• Publication Date: 1977

Language

• German

Media Info

• Features: References;
• Pagination: p. 705-711
• Serial:
  • Schweizerische Bauzeitung
  • Volume: 95
  • Issue Number: 40

Subject/Index Terms

• TRT Terms: Air resistance; Drag; Environmental quality; Mathematical models; Rapid transit cars; Subways; Train track dynamics; Tunnels
• Old TRIS Terms: Subway environment; Tunnel drag
• Subject Areas: Bridges and other structures; Construction; Environment; Public Transportation;

Filing Info

• Accession Number: 00169955
• Record Type: Publication
• Source Agency: International Union of Railways
• Files: TRIS
• Created Date: Jan 30 1981 12:00AM