Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Flow Behavior in a Rectangular Tunnel Opened and Closed at Both Sides Using CFD

  • Lee, Yong-Ho (Dept. of Mechanical-Automotive Engineering, Chonnam National University, Yeosu Campus)
  • Received : 2012.04.04
  • Accepted : 2012.04.20
  • Published : 2012.05.31
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Abstract

Most tunnel simulations have been focused on the thermal field and the critical velocity for suppression of hot back-layering flow in case of fire and on the characteristics of a tunnel fire in terms of the flame propagation and the toxic gas generation. In this paper, a comparative study of the flow characteristics of polluted air with no heat source in a tunnel model opened and closed at both end sides is implemented into a recognized CFD simulation code. The model is used to investigate the flow characteristics depending on the three different Reynolds numbers of 640, 1270 and 2120, which have been chosen by the flow velocities of 0.3, 0.6 and 1.0 m/s through the inlet. The results of this study have shown that the CFD predictive and experimental approaches are available in qualitatively studying the correlation of flow behaviors for a better tunnel design.

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References

  1. Li Kun, Ding Cui and You Chang-fu. "Influence of ventilation tube rupture from fires on secondary catastrophes in tunnel", First International Symposium on Mine Safety Science and Engineering, Procedia Engineering, vol. 26, pp. 75-83, 2011.
  2. M. Barbason and S. Reiter, "About the choice of turbulence model in building physics simulation", Proceedings of the 7th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings, Syracuse, New York, 2010.
  3. V. Yakhot and SA. Orszag, "Renormalization group analysis of turbulence", Journal of Science Computing, pp. 3-51, 1986.
  4. KG, Gebremedhin and BX, Wu, "Characterization of flow field in a ventilated space and simulation of heat exchange between cows and their environment", Journal of thermal biology, vol. 28, no. 4, pp. 301-319.
  5. Anh Tuan Nguyen, Sigrid Reiter. "The effect of ceiling configurations on indoor air motion and ventilation flow rates", J. Building and environment, vol. 46, pp. 1211-1222, 2011. https://doi.org/10.1016/j.buildenv.2010.12.016
  6. C.C. Hwang and J.C. Edwards, "The critical ventilation velocity in tunnel fires - a computer simulation", Fire Safety Journal, vol. 40, pp. 213-244, 2005. https://doi.org/10.1016/j.firesaf.2004.11.001
  7. Y. Wu and M.Z.A, Baker, "Control of smoke flow in tunnel fires using longitudinal ventilation systems - A study of the critical velocity", Fire Safety Journal, vol. 35, pp. 363-390, 2000. https://doi.org/10.1016/S0379-7112(00)00031-X
  8. C. C. Hwang, J. D. Wargo, "Experimental Study of thermally generated reverse stratified layers in a fire tunnel", Combust Flame, vol. 66, pp. 171-80, 1986. https://doi.org/10.1016/0010-2180(86)90089-1
  9. Y, Nuri, I. B., Muhammed, K, Salih and D, Nureddin, "Experimental and numerical simulation of fire in a scaled underground station", World Academy of Science, Engineering and Technology, vol. 40, pp. 309-314, 2008.
  10. Sang-Kyoo Park, Hei-Cheon Yang, Yong-Ho Lee and Gong Chen, "PIV measurement of the flow field in rectangular tunnel", Journal of the Korean Society of Marine Engineering, vol. 32, no. 6, pp. 886-892, 2008. https://doi.org/10.5916/jkosme.2008.32.6.886
  11. Yong-Ho Lee and Sang-Kyoo Park, "Flow field analysis of smoke in a rectangular tunnel", Journal of the Korean Society of Marine Engineering, vol. 33, no. 5, pp. 679-685, 2009. https://doi.org/10.5916/jkosme.2009.33.5.679
  12. Yong-Ho Lee. "Experimental and CFD simulations of polluted air behavior in rectangular tunnels", Journal of the Korean Society of Marine Engineering, vol. 35, no. 5, pp. 608-615, 2011. https://doi.org/10.5916/jkosme.2011.35.5.608
  13. M. Raffel, C. Willert and J. Kompenhans, Particle Image Velocimetry, A Practical Guide, Springer, pp. 88-123, 1998.
  14. Dantec Dynamics, FlowManger Software and Introduction to PIV: 2D PIV Installation and User's Guide, pp. 33-118, 2000.
  15. Y. Oka and G.T. Atkinson. "Control of smoke flow in tunnel fires", Fire Safety Journal, vol. 25, pp. 305-322, 1996.
  16. Mahesh C. Jain, Textbook of Engineering Physics (Part 1), PHI Learning Pvt. Ltd., p. 9, 2009.

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