Influence of mechanical ventilation-shaft connecting location on subway tunnel ventilation performance

Title
Influence of mechanical ventilation-shaft connecting location on subway tunnel ventilation performance
Author(s)
송동주막슈다쥬래바류경진정상현[정상현]
Keywords
SIMULATION; FLOW; FAN
Issue Date
201308
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS, v.119, pp.114 - 120
Abstract
Subways are widely used for public transportation in major cities and require efficient ventilation systems to maintain indoor air quality in the subway tunnel. A subway tunnel was investigated to understand the airflow inside the tunnel, and to improve its ventilation system. The steady three-dimensional airflow in the tunnel was analyzed using ANSYS CFX software to solve Reynolds-averaged Navier-Stokes equations. The ventilation performance in the subway tunnel was investigated with respect to the connecting location of the mechanical ventilation shaft by analyzing mass flow rate through the ventilation-shafts and the airflow in the tunnel. The airflow in the tunnel and the mass flow rate in the shafts were investigated when the guide-vane, the porous zone and the air-curtain were installed in the subway tunnel system. The discharged-air was higher at ventilation-shaft 2 which was connected to the top wall of the tunnel than that of the ventilation-shaft 1 which was connected to the side wall of the tunnel. The numerical results suggested the connecting location of shaft 2 as the optimum connecting location. (C) 2013 Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/29195http://dx.doi.org/10.1016/j.jweia.2013.05.016
ISSN
0167-6105
Appears in Collections:
공과대학 > 기계공학부 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE