ENVIRONMENTAL JUSTIFICATION OF A VEHICULAR TUNNEL CONSTRUCTED IN RESIDENTIAL AREA ---PAPERS PRESENTED AT THE 6TH INTERNATIONAL SYMPOSIUM ON THE AERODYNAMICS AND VENTILATION OF VEHICLE TUNNELS, DURHAM, 27-29 SEPT 1988

We report in this paper, a mathematical model developed to simulate the dispersion mechanism of the vitiated tunnel AIR And the carbon monoxide concentration 300 m outside the portal of a semi-transverse ventilated vehicular tunnel located in Hong Kong. This is achieved by solving a system of partial differential equations, which describes diffusion of the pollutants under turbulent effects. Actual geographical profile and local wind conditions are taken into account. As a hybrid scheme is used to discretize the equations, the program developed may be executed on a personal computer system, i.e. One ibm-at. The results predicted may be used to justify the environmental impact on the residential area around a proposed 4 km long tunnel which is exhausting 150 ppm of carbon monoxide from the portal.(a)

  • Availability:
  • Corporate Authors:

    BHRA, The Fluid Engineering Centre

    Cranfield, Bedfordshire,   United Kingdom 
  • Authors:
    • Chow, W K
    • Chan, W T
  • Publication Date: 1988

Language

  • English

Media Info

  • Pagination: p. 165-77
  • Monograph Title: PAPERS PRESENTED AT THE 6TH INTERNATIONAL SYMPOSIUM ON THE AERODYNAMICS AND VENTILATION OF VEHICLE TUNNELS, DURHAM, 27-29 SEPTEMBER 1988

Subject/Index Terms

Filing Info

  • Accession Number: 00487769
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 0-947711-49-X
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1989 12:00AM