Computational Fluid Dynamics (CFD) Analysis of Spatial Layout Optimization of Jet Ventilation Fan Used in Twolane Road Tunnel

doi:10.3973/j.issn.1672-741X.2016.04.007

Tunnel Construction ›› 2016, Vol. 36 ›› Issue (4): 411-417.DOI: 10.3973/j.issn.1672-741X.2016.04.007

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Computational Fluid Dynamics (CFD) Analysis of Spatial Layout Optimization of Jet Ventilation Fan Used in Twolane Road Tunnel

ZHAO Li¹, YAN Zhiguo^1,2,3

(1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China; 3. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China)

Received:2015-09-28 Revised:2015-12-09 Online:2016-04-20 Published:2016-04-27

Abstract

Abstract:

The jet ventilation of Mingtangshan Twolane Road Tunnel is numerically simulated so as to optimize the spatial layout of ventilation fans; and then the factors for the pressure rise of ventilation fan, i.e. longitudinal distance among fans, setting height of fan and transverse distance among fans, are discussed. The authors suggest that the jet fans should be installed at the position higher than building boundary about 15-30 cm； the transverse distance among fans should be 1.5-2 times fan diameter； and the longitudinal distance among fans should be larger than 150 m. The computational fluid dynamics (CFD) simulation results show that the jet ventilation fan after optimization can achieve good effect.

Key words: Mingtangshan Road Tunnel, jet ventilation fan, spatial layout optimization, numerical simulation, computational fluid dynamics (CFD)

CLC Number:

U 453.5

ZHAO Li, YAN Zhiguo. Computational Fluid Dynamics (CFD) Analysis of Spatial Layout Optimization of Jet Ventilation Fan Used in Twolane Road Tunnel[J]. Tunnel Construction, 2016, 36(4): 411-417.

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Computational Fluid Dynamics (CFD) Analysis of Spatial Layout Optimization of Jet Ventilation Fan Used in Twolane Road Tunnel

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