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http://dx.doi.org/10.5916/jkosme.2011.35.5.608

Experimental and CFD Simulations of Polluted Air Behavior in Rectangular Tunnels  

Lee, Yong-Ho (College of Engineering Science, Chonnam National University, Yeosu Campus)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.35, no.5, 2011 , pp. 608-615 More about this Journal
Abstract
The objective of this study is to investigate the flow characteristics of polluted air behavior in rectangular tunnels using a PIV system and a commercial CFD program. The PIV experiments are simulated by using the olive oil as the tracer particles in scaled rectangular tunnels. Each model has one of four different outlet vents, each dimensionless L/H ratio of which is 0, 0.375, 0.75 and 1.125, respectively as the locations of each outlet are away from the vertical centerline through the inlet. A commercial CFD program, ANSYS CFX, was used to examine the velocity fields and the pressure distributions in numerical simulations. The kinematic viscosity of the air flow of $1.51{\times}10^{-5}m^2/s$ and the flow velocity of 0.3 m/s at the inlet are given under the same conditions in order to analyze the polluted air flow characteristics experimentally and computationally. This study is considered to examine the effect of the outlet locations in the naturally ventilated tunnel models.
Keywords
PIV; CFD(computational fluid dynamics); Average velocity vector; Streamlines; Flow Manager;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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