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http://dx.doi.org/10.5293/KFMA.2011.14.4.025

Effects of the Distance between Jet Fans on the Ventilation Performance in a Road Tunnel  

Kim, Jung-Yup (한국건설기술연구원 화재안전연구실)
Publication Information
The KSFM Journal of Fluid Machinery / v.14, no.4, 2011 , pp. 25-30 More about this Journal
Abstract
The jet fan is generally used to add thrust in the longitudinal ventilation system of road tunnel and the geometric conditions of jet fan such as the distance from tunnel wall have an effect on the performance of ventilation system. Numerical analyses on the flow in tunnel caused by operation of jet fan are presented to study the ventilation characteristics in tunnel. While the distance between jet fans in parallel installed in tunnel is changed 0.5 L/D to 3.0 L/D, the flowrate and mean velocity through tunnel are calculated for each cases. As the distance between jet fans increases, the flowrate through tunnel increases asymptotically and the momentum of tunnel flow is alike.
Keywords
Tunnel flow; Jet fan; Ventilation; Numerical analysis; Road Tunnel;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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1 장춘만, 최승만, 김광용, 2006, "허브 캡 형상에 따른 축류송풍기 성능특성," 유체기계저널, 제9권, 제6호, pp. 9∼16.   과학기술학회마을   DOI
2 김정엽, 양상호, 2010, "제트홴에 의해 형성되는 터널내 유동의 실험 및 수치적 해석," 유체기계저널, 제13권, 제3호, pp. 59∼64.   과학기술학회마을   DOI
3 ANSYS, Inc., 2006, ANSYS CFX Introduction.
4 김명배, 최병일, 최준석, 한용식, 2004, "도로터널에서의 화재환기 설계에 관한 연구," 터널기술, 제6권, 제2호, pp. 129-139.
5 우경범, 김원갑, 한화택, 2002, "화재시 터널내 열유동 시뮬레이션 모델 연구," 설비공학논문집, 제14권, 제7호, pp. 584-591.   과학기술학회마을
6 한국도로공사, 2002, 고속도로터널 환기시설 설계기준.
7 N. Costeris, 1991, "Impulse Fans," 7th International Symposium on Aerodynamics and Ventilation of Vehicle Tunnels, Brighton, UK, pp. 827∼846.
8 F. Wang, M. Wang, S. He, J. Z hang, Y. Deng, 2010, "Computational study of effects of jet fans on the ventilation of a highway curved tunnel," Tunnelling and Underground Space Technology, Vol.25, pp.382∼390.   DOI   ScienceOn
9 A. D. Martegani, G. Pavesi, C. Barbetta, 1994, "An Experimental study on the longitudinal ventilation system," 8th International Symposium on Aerodynamics and Ventilation of Vehicle Tunnels, Liverpool, UK, pp. 3-15.
10 T. Saika, K. Nakajima, S. Setoyama, S. Haraguchi, M. Miyake, T. Kanoh, 2000, "Jet fan thrust performance evaluation installed in road tunnels," 10th International Symposium on Aerodynamics and Ventilation of Vehicle Tunnels, Boston, USA, pp. 1079-1088.
11 이기상, 김광용, 최재호, 2008, "익형의 형상최적화를 통한 고효율 축류송풍기 설계," 유체기계저널, 제11권, 제2호, pp. 46∼54.   과학기술학회마을   DOI
12 유지오, 이동호, 신현준, 1999, "도로터널 환기시스템 설계프로그램 개발," 한국산업안전학회지, 제14권, 제4호, pp. 60∼70.