Chapter
May 22, 2014
Similarity Theory in a Model Test for the Natural Ventilation of Urban Tunnels
Authors: Peng Yu and Zhiguo YanAuthor Affiliations
Publication: Tunneling and Underground Construction
Abstract
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.
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Published In
Tunneling and Underground Construction
Pages: 680 - 688
Copyright
© 2014 American Society of Civil Engineers.
History
Published online: May 22, 2014
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ASCE Technical Topics:
- Air flow
- Architectural engineering
- Building systems
- Construction engineering
- Construction management
- Flow (fluid dynamics)
- Fluid dynamics
- Fluid flow
- Fluid mechanics
- Geotechnical engineering
- HVAC
- Hydrologic engineering
- Infrastructure
- Solids flow
- Traffic engineering
- Traffic flow
- Traffic management
- Transportation engineering
- Tunnels
- Urban and regional development
- Urban areas
- Ventilation
- Water and water resources
Authors
Affiliations
Peng Yu
Department of Geotechnical Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
Zhiguo Yan
Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, 1239 Siping Road, Shanghai 200092, China; Department of Geotechnical Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.