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

Effective maintenance of ancient buildings is paid more and attention worldwide. Many with high inheritance value were gradually destroyed, especially for murals in the open tombs. The bioaerosol particles (BPs) are major source contamination visitor walking could increase this hazard. In order to study impact visitors on air flow distribution BPs typical tomb chambers, k-ε Lagrangian discrete phase model adopted. was described by dynamic mesh, concentration simulation verified experimental sampling. migration mechanism chamber dynamically analyzed. results indicate that denser vortex generated when a walking, changed obviously. Therefore, number deposited some precious increased location shifted direction walking. addition, deposition time lagging which would cause potential risk. This research can provide scientific basis reducing during visiting reference buildings.