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Study on the Influence of the Curvature Radius of the Branch on Fire Temperature Characteristics in Bifurcated Curve Tunnel

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Computational and Experimental Simulations in Engineering (ICCES 2023)

Part of the book series: Mechanisms and Machine Science ((Mechan. Machine Science,volume 143))

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Abstract

In order to explore the influence of the radius of curvature (ROC) of the branch on the ceiling temperature in the bifurcated curve tunnel, the numerical simulation method is used in this paper to study the fire scene where the fire source is located at the bifurcated point under the longitudinal ventilation condition. The results show that the ceiling maximum temperature rise of the bifurcated curve tunnel increases with the heat release rate of the fire source, and decreases with the increase of the longitudinal ventilation velocity or the ROC of the branch. Based on the data analysis, a prediction model for the ceiling maximum temperature rise of the bifurcated curve tunnel is proposed in this paper, which considers the influence of the ROC of the branch. For the ceiling longitudinal temperature distribution of the branch, when the ROC of the branch is small, the ceiling longitudinal temperature will briefly increase at the entrance of the branch. In the downstream area of the branch, the ceiling longitudinal temperature increases with the ROC of the branch.

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Authors and Affiliations

  1. Department of Fire Protection Engineering, Southwest Jiaotong University, Chengdu, 610031, China

    **nyi Liu, Longfei Chen, Yujie Lan, **neng Yan, Haifeng Chen & Shanxin Zhou

  2. Department of Security, Sichuan University, Chengdu, 610065, China

    **aosong Li

  3. China Construction Third Engineering Bureau Group CO., Ltd., Department of Work Safety Supervision and Management, **an, 250000, China

    Dongfeng Huo

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  1. **nyi Liu
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  2. Longfei Chen
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  3. Yujie Lan
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  4. **neng Yan
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  5. Haifeng Chen
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  6. Shanxin Zhou
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  7. **aosong Li
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Correspondence to Longfei Chen .

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Editors and Affiliations

  1. Dept of Civil and Env'l Engg, University of California, Berkeley, Berkeley, CA, USA

    Shaofan Li

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Liu, X. et al. (2024). Study on the Influence of the Curvature Radius of the Branch on Fire Temperature Characteristics in Bifurcated Curve Tunnel. In: Li, S. (eds) Computational and Experimental Simulations in Engineering. ICCES 2023. Mechanisms and Machine Science, vol 143. Springer, Cham. https://doi.org/10.1007/978-3-031-42515-8_39

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  • DOI: https://doi.org/10.1007/978-3-031-42515-8_39

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-42514-1

  • Online ISBN: 978-3-031-42515-8

  • eBook Packages: EngineeringEngineering (R0)

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