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Numerical Investigation of Particle Concentration Distribution Characteristics in Twin-Tunnel Complementary Ventilation System

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Listed:
  • Rui Ren
  • Shuoshuo Xu
  • Zhaodan Ren
  • Shuangzhuo Zhang
  • Hao Wang
  • Xiuling Wang
  • Siyue He

Abstract

Longitudinal ventilation systems are commonly installed in new tunnels. In this paper, based on the similarity law, the scale model with a view to different conditions is carried out to study the effectiveness of twin-tunnel complementary ventilation system. The system can offer enough amount of fresh air to meet requirement of driving safety by using longitudinal ventilation without ventilation shaft. Field measurements were also performed to validate the numerical model. Results reveal that particle concentration distribution is influenced by the distance from air interchange cross-passages to uphill tunnel inlet ( ) and the flow volume of air interchange cross ( ) passage and jet fan thrust ( ) in tunnel. And is the most important factor about influencing the ventilation efficiency.

Suggested Citation

  • Rui Ren & Shuoshuo Xu & Zhaodan Ren & Shuangzhuo Zhang & Hao Wang & Xiuling Wang & Siyue He, 2018. "Numerical Investigation of Particle Concentration Distribution Characteristics in Twin-Tunnel Complementary Ventilation System," Mathematical Problems in Engineering, Hindawi, vol. 2018, pages 1-13, July.
    • Handle: RePEc:hin:jnlmpe:1329187
    DOI: 10.1155/2018/1329187
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    Cited by:

    1. Ya-Qiong Wang & Shao-Bing Zhang & Long-Long Chen & Yong-Li Xie & Zhi-Feng Wang, 2019. "Field monitoring on deformation of high rock slope during highway construction: A case study in Wenzhou, China," International Journal of Distributed Sensor Networks, , vol. 15(12), pages 15501477198, December.

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