AIR RESISTANCE TO TRAINS IN TUNNELS

The study of the resistance of train movement in tunnels goes back to the end of the last century, when research on utilization was started, made necessary by reason of the pollution due to the combustion of coal in steam traction. Later other studies and experimental research were carried out which, however, came to an end with the diffusion of electric traction. In recent years there have appeared in technical literature memoranda and articles in which information is given of new theoretical and experimental calculations of air resistance to motive power units and rolling stock of modern type and form both in the open and in tunnels, also with reference to high speeds. Within the ambit of these calculations there falls this treatise, which, although not able to make recourse to concrete experiments, prefixes, on the grounds of traditional calculation patterns, the re-proposal of the problem, attempting to bring out the inter-dependency of certain geometrical and physical parameters characterizing a tunnel and a train, with the supplementary resistances of underground movement.

  • Corporate Authors:

    Collegio Ingegneri Ferroviari Italiani

    Piazza Croce Rossa
    Rome,   Italy 
  • Authors:
    • Pellis, P
  • Publication Date: 1977-11

Language

  • Italian

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00176902
  • Record Type: Publication
  • Source Agency: British Railways
  • Files: TRIS
  • Created Date: Jun 14 1978 12:00AM