Similarity Theory in a Model Test for the Natural Ventilation of Urban Tunnels

One important method for studying natural ventilation is a model experiment. However, the mutual relationships between traffic flow and inner airflow in tunnel are quite complex (Zhong, et. al., 2008). Based on the Donghu Tunnel in Wuhan, which is under construction, the paper analyzes the analogical conditions for model and prototype and deduces the similitude criterion numbers. Indications are that the experiment similitude of fluid and solid flow should be ensured at the same time. The way to convert model data to the actual tunnel is explained. The ventilation effect in the natural tunnel is evaluated as having certain theoretic and engineering instructional meaning on natural ventilation in urban tunnel with top openings.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 680-688
  • Monograph Title: Tunneling and Underground Construction

Subject/Index Terms

Filing Info

  • Accession Number: 01531584
  • Record Type: Publication
  • ISBN: 9780784413449
  • Files: TRIS, ASCE
  • Created Date: May 22 2014 3:05PM