Large eddy simulation of smoke flow in a real road tunnel fire using FDS


Autoria(s): Sojoudi, A.; Afshin, H.; Farhanieh, B.; Saha, Suvash C.
Contribuinte(s)

Gu, YuanTong

Saha, Suvash C.

Liu, Gui-Rong

Data(s)

25/11/2012

Resumo

Numerical study is carried out using large eddy simulation to study the heat and toxic gases released from fires in real road tunnels. Due to disasters about tunnel fires in previous decade, it attracts increasing attention of researchers to create safe and reliable ventilation designs. In this research, a real tunnel with 10 MW fire (which approximately equals to the heat output speed of a burning bus) at the middle of tunnel is simulated using FDS (Fire Dynamic Simulator) for different ventilation velocities. Carbone monoxide concentration and temperature vertical profiles are shown for various locations to explore the flow field. It is found that, with the increase of the longitudinal ventilation velocity, the vertical profile gradients of CO concentration and smoke temperature were shown to be both reduced. However, a relatively large longitudinal ventilation velocity leads to a high similarity between the vertical profile of CO volume concentration and that of temperature rise.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/57174/

Relação

http://eprints.qut.edu.au/57174/1/422.pdf

http://www.iccm-2012.org/

Sojoudi, A., Afshin, H., Farhanieh, B., & Saha, Suvash C. (2012) Large eddy simulation of smoke flow in a real road tunnel fire using FDS. In Gu, YuanTong, Saha, Suvash C., & Liu, Gui-Rong (Eds.) Proceedings of the 4th International Conference on Computational Methods (ICCM2012), Crowne Plaza, Gold Coast, Australia.

Direitos

Copyright 2012 (please consult the authors).

Fonte

School of Chemistry, Physics & Mechanical Engineering; Institute for Future Environments; Science & Engineering Faculty

Palavras-Chave #091307 Numerical Modelling and Mechanical Characterisation #Large eddy simulation #Tunnel fire, Smoke flow #Fire Dynamic Simulator
Tipo

Conference Paper