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Maximum temperature of smoke beneath ceiling in tunnel fire with vertical shafts
Highlights Numerical model is calibrated with full-scale experiment. Maximum temperature beneath ceiling prediction model is built using dimensional analysis. The coefficients of the model are deduced by the results of validated numerical model. The model can give a better prediction by comparing with Kurioka model and experiment.
Abstract To assess the impact of heat smoke in tunnel with vertical shafts, the maximum temperature of smoke beneath ceiling is researched theoretically and experimentally in this paper. A theoretical prediction model for maximum temperature of smoke beneath ceiling is built using dimensional analysis. A numerical model is built and calibrated with the full-scale experiment data. The calibrated numerical model is used to simulate the maximum temperature of smoke under different conditions with different shaft geometry. At last, the proposed theoretical model was formulated and compared with Kurioka model, experimental data and simulation data. The results show that the proposed theoretical model can give a better prediction for the tendency. It can be used to predict the maximum temperature of smoke beneath ceiling of tunnel with vertical shafts by taking the shaft geometry and arrangements effect into account.
Maximum temperature of smoke beneath ceiling in tunnel fire with vertical shafts
Highlights Numerical model is calibrated with full-scale experiment. Maximum temperature beneath ceiling prediction model is built using dimensional analysis. The coefficients of the model are deduced by the results of validated numerical model. The model can give a better prediction by comparing with Kurioka model and experiment.
Abstract To assess the impact of heat smoke in tunnel with vertical shafts, the maximum temperature of smoke beneath ceiling is researched theoretically and experimentally in this paper. A theoretical prediction model for maximum temperature of smoke beneath ceiling is built using dimensional analysis. A numerical model is built and calibrated with the full-scale experiment data. The calibrated numerical model is used to simulate the maximum temperature of smoke under different conditions with different shaft geometry. At last, the proposed theoretical model was formulated and compared with Kurioka model, experimental data and simulation data. The results show that the proposed theoretical model can give a better prediction for the tendency. It can be used to predict the maximum temperature of smoke beneath ceiling of tunnel with vertical shafts by taking the shaft geometry and arrangements effect into account.
Maximum temperature of smoke beneath ceiling in tunnel fire with vertical shafts
Wang, Yan Fu (author) / Li, Yu Lian (author) / Yan, Pei Na (author) / Zhang, Biao (author) / Jiang, Jun Cheng (author) / Zhang, Li (author)
Tunnelling and Underground Space Technology ; 50 ; 189-198
2015-06-30
10 pages
Article (Journal)
Electronic Resource
English
Maximum temperature of smoke beneath ceiling in tunnel fire with vertical shafts
| British Library Online Contents | 2015
Maximum temperature of smoke beneath ceiling in tunnel fire with vertical shafts
| Online Contents | 2015
Maximum temperature of smoke beneath ceiling in tunnel fire with vertical shafts
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