Volume 3, Issue 6, November 2018, Page: 42-46
The Characteristics of Pollutant Diffusion and the Crossflow in Adjacent Tunnel Portals
Zhu Pingting, Mechanical Engineering College, Southwest Jiaotong University, Chengdu, China
Deng Zhihui, Mechanical Engineering College, Southwest Jiaotong University, Chengdu, China
Fu Lei, Mechanical Engineering College, Southwest Jiaotong University, Chengdu, China
Xiao Yang, Mechanical Engineering College, Southwest Jiaotong University, Chengdu, China
Received: Nov. 28, 2018;       Accepted: Dec. 18, 2018;       Published: Jan. 23, 2019
DOI: 10.11648/j.ijimse.20180306.11      View  39      Downloads  9
Abstract
With the development of infrastructure construction, tunnel construction is becoming more and more. However, the pollution diffusion from adjacent upstream tunnels can cause secondary pollution to downstream openings. The paper used FLUENT to simulate the characteristics of pollutant diffusion. Two forms of adjacent tunnels, single-hole tunnel and double-hole tunnel, were used as the research objects. Also simulate the interporosity flow issue, it is concluded that when the tunnel wind speed is equal, the interporosity flow has nothing to do with the wind speed, but has to do with the distance between upstream and downstream spacing.
Keywords
Adjacent Tunnels, Pollutant Diffusion, Crossflow, Tunnel Ventilation Speed
To cite this article
Zhu Pingting, Deng Zhihui, Fu Lei, Xiao Yang, The Characteristics of Pollutant Diffusion and the Crossflow in Adjacent Tunnel Portals, International Journal of Industrial and Manufacturing Systems Engineering. Vol. 3, No. 6, 2018, pp. 42-46. doi: 10.11648/j.ijimse.20180306.11
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Reference
[1]
Ide Y, Ueyama S. Wind tunnel modeling of gas dispersion from a road portal outlet [J]. The Science of Total Environment, 1987, 59: 211~221.
[2]
Hu Weijun. Prediction of the Impact of Urban Road Tunnel Exhaust Emission [J]. Underground Engineering and Tunnel, 1997 (2): 38~43.
[3]
Li Fei. Research on Mechanism and Countermeasure of Mutual Influence of Air Supply and Exhaust in Close Distance Highway Tunnel [D]. Chinese Academy of Sciences, 2005.
[4]
Yang Yurong. Study on the Diffusion Form and Turbulence Effect of Exhaust Gas in Tunnel Entrance [D]. Southwest Jiaotong University, 2013.
[5]
Zhang Lianhe. Study on turbulent flow of polluted gas at highway tunnel entrance [D]. Chongqing Jiaotong University, 2012.
[6]
Han Xing, Yang Jie, Zhang Wei. The influence of polluted air from the upstream of the tunnel group on the downstream tunnel air [J]. Journal of Water Resources and Water Engineering, 2014, 03:48-52.
[7]
Yu Kuai, Liu Hong, Wang Xiaowen, Chen Jianzhong. Numerical Analysis of Secondary Pollution Caused by Crossflow at the Entrance of Zhongliangshan Tunnel [J]. Journal of Chongqing Jiaotong University (Natural Science Edition), 2011,30 (02): 225 - 228 + 299.
[8]
Tao Wenquan. Numerical Heat Transfer [M]. Xi'an Jiaotong University Press, Xi'an, 2001.
[9]
Cai Zengji, Long Tianyu, ed. Fluid Mechanics Pumps and Fans (Fifth Edition) [J]. China Building Industry Press, Beijing, 2009.
[10]
Wang Song, Wang Ziyun, Liang Yuan, Ding Pei. Analysis of Fire Temperature Distribution and Flue Gas Recirculation in Highway Tunnel Based on FDS [J]. Refrigeration and Air Conditioning (Sichuan), 2015, 05:601-605.
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