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Natural ventilation is not only an energy-saving ventilation method, but also the most common way to protect cultural relics. This study aims to explore the reasonable natural ventilation modes by switching doors and windows on the eave of cave 9 and cave 10, which are located in Yungang Grottoes. Using the data at 10:00 a.m. on August 21, 2023, 324 different natural ventilation strategies are carried out to simulate the humidity field and the velocity field through the CFD software FLUENT. Finally, the random forest algorithm is used to analyze the importance of doors and windows to the environment changes inside the cave. In conclusion, transom window 2, transom window 6 and door 1 are the main factors that influence the humidity field while transom window 2 and door 1 are also the decisive factors that affect velocity field.

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A CFD Based Optimization of Natural Ventilation Strategy for Yungang Grottoes

  • 会议论文

  • 发表日期：

    2025年

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  • Xinrui Xu,
  • Hongbin Yan,
  • Tingzhang Liu,
  • Shaoyou Zhang,
  • Lunrui Gao

摘要

Natural ventilation is not only an energy-saving ventilation method, but also the most common way to protect cultural relics. This study aims to explore the reasonable natural ventilation modes by switching doors and windows on the eave of cave 9 and cave 10, which are located in Yungang Grottoes. Using the data at 10:00 a.m. on August 21, 2023, 324 different natural ventilation strategies are carried out to simulate the humidity field and the velocity field through the CFD software FLUENT. Finally, the random forest algorithm is used to analyze the importance of doors and windows to the environment changes inside the cave. In conclusion, transom window 2, transom window 6 and door 1 are the main factors that influence the humidity field while transom window 2 and door 1 are also the decisive factors that affect velocity field.