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Article

Influence of the Visitor Walking on Airflow and the Bioaerosol Particles in Typical Open Tomb Chambers: An Experimental and Case Study

Department of Power Engineering, North China Electric Power University, Baoding 071003, China
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Author to whom correspondence should be addressed.
Academic Editors: Paula Lopez-Arce and Ainara Zornoza-Indart
Buildings 2021, 11(11), 538; https://doi.org/10.3390/buildings11110538
Received: 11 October 2021 / Revised: 10 November 2021 / Accepted: 12 November 2021 / Published: 14 November 2021
Effective maintenance of ancient buildings is paid more and more attention worldwide. Many ancient buildings with high inheritance value were gradually destroyed, especially for murals in the open tombs. The bioaerosol particles (BPs) are the major source of contamination in murals and visitor walking could increase this hazard. In order to study the impact of visitors walking on the air flow and the distribution of BPs in the typical tomb chambers, the k-ε and Lagrangian discrete phase model were adopted. The walking visitor was described by the dynamic mesh, and the concentration of BPs in the simulation was verified by experimental sampling. The distribution and migration mechanism of contamination in the chamber were dynamically analyzed. The results indicate that the denser vortex generated when a visitor was walking, and the concentration of BPs changed obviously. Therefore, the number of BPs deposited on some precious murals increased and the contamination location shifted in the direction of visitor walking. In addition, the deposition time of BPs was lagging which would cause potential risk. This research can provide scientific basis for reducing murals contamination during visitor visiting and a reference for the maintenance of ancient buildings. View Full-Text
Keywords: ancient buildings; bioaerosol particles; visitor walking; airflow disturbance; mural conservation ancient buildings; bioaerosol particles; visitor walking; airflow disturbance; mural conservation
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MDPI and ACS Style

Liu, Z.; Wu, M.; Cao, H.; Wang, Y.; Rong, R.; Zhu, H. Influence of the Visitor Walking on Airflow and the Bioaerosol Particles in Typical Open Tomb Chambers: An Experimental and Case Study. Buildings 2021, 11, 538. https://doi.org/10.3390/buildings11110538

AMA Style

Liu Z, Wu M, Cao H, Wang Y, Rong R, Zhu H. Influence of the Visitor Walking on Airflow and the Bioaerosol Particles in Typical Open Tomb Chambers: An Experimental and Case Study. Buildings. 2021; 11(11):538. https://doi.org/10.3390/buildings11110538

Chicago/Turabian Style

Liu, Zhijian, Minnan Wu, Hongwei Cao, Yongxin Wang, Rui Rong, and Hangyao Zhu. 2021. "Influence of the Visitor Walking on Airflow and the Bioaerosol Particles in Typical Open Tomb Chambers: An Experimental and Case Study" Buildings 11, no. 11: 538. https://doi.org/10.3390/buildings11110538

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