THE AERODYNAMICS OF TUNNEL FLOWS INDUCED BY JET FANS

The Ventilation, Air Conditioning and Refrigeration (VACR) LINK Scheme funds collaborative research on a range of subjects including tunnel ventilation. It is part of the UK Government's publicly funded LINK initiative. This article describes a three- year VACR LINK programme, in which a collaboration consisting of two companies and the University of the South Bank are using advanced measurement and computing techniques to design better jet fans for ventilating road tunnels. The project's aim is to investigate the interaction between the primary jet and the resulting secondary air flows in tunnels of both circular and rectangular cross section. It will also investigate the effects of: a) wall proximity; b) fan pitch and yaw; c) jet fan characteristics; and d) the coupling effects for series and parallel configurations. There will be tunnel model tests, using series of idealised tunnels with glass panels and scale model jet fans. The resulting air flows will be studied using a two- component laser anemometer. The results will be used to validate theoretical studies using the FLOW 3-D computational fluid dynamics package. The test facility will be flexible enough to investigate additional problems, including smoke extraction and hybrid ventilation.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0041414X
• Corporate Authors:

  Morgan-Grampian (Construction Press) Limited

  Morgan-Grampian House, 30 Calderwood Street
  London SE18 6QH,   England 
• Authors:
  • CORY, B
  • LOWNDES, J
  • MATTHEWS, R
• Publication Date: 1992-10

Language

• English

Media Info

• Features: References;
• Pagination: p. 31-3
• Serial:
  • Tunnels & Tunnelling International
  • Volume: 24
  • Issue Number: 10
  • Publisher: Progressive Media Markets, Ltd
  • ISSN: 0041-414X

Subject/Index Terms

• TRT Terms: Aerodynamics; Temperature; Tunnels; Ventilation systems
• ITRD Terms: 5492: Aerodynamics; 6722: Temperature; 3374: Tunnel; 3392: Ventilation
• Subject Areas: Bridges and other structures;

Filing Info

• Accession Number: 00636197
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Sep 24 1993 12:00AM