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Dust diffusion simulation in the third layer construction of underground powerhouse

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Abstract

Under forced ventilation, the dust diffusion of underground powerhouse construction is investigated using a 3D high Reynolds number k-ɛ model. The interfacial momentum transfers and the wall roughness in the wall function are considered. Ventilation in the third layer of underground powerhouse of Xiangjiaba hydropower station is used as a case. The geometric structure has a decisive effect on the airflow distribution. It is concluded that the dust concentration decreases gradually with the increase of the ventilation time. However, iso-concentration curves have the same tendency after 1 800 s. The dust concentration meets the ventilation and dust-prevention health standard after 2 300 s. The prediction by the present model is confirmed by the experimental measurement by Nakayama.

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Authors and Affiliations

  1. School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China

    Xiaoling Wang  (王晓玲), Ziqiang Zhang  (张自强), Tao Li  (李 涛) & Xuepeng Liu  (刘雪朋)

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  1. Xiaoling Wang  (王晓玲)
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  2. Ziqiang Zhang  (张自强)
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  3. Tao Li  (李 涛)
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  4. Xuepeng Liu  (刘雪朋)
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Corresponding author

Correspondence to Xiaoling Wang  (王晓玲).

Additional information

Supported by Natural Science Fund ation for Major Research Plan of China (No. 90815019), National Natural Science Foundation of China (No.50879053), National Key Project of Scientific and Technical Supporting Programs Funded by Ministry of Science and Technology of China (No. 2006BAB04A13).

WANG Xiaoling, born in 1968, female, Dr, associate Prof.

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Wang, X., Zhang, Z., Li, T. et al. Dust diffusion simulation in the third layer construction of underground powerhouse. Trans. Tianjin Univ. 15, 135–139 (2009). https://doi.org/10.1007/s12209-009-0024-3

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  • DOI: https://doi.org/10.1007/s12209-009-0024-3

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