Effects of ambient pressure on smoke movement patterns in vertical shafts in tunnel fires with natural ventilation systems

• Published in: Building simulation Vol. 13; no. 4; pp. 931 - 941
• Main Authors: Yan, Guanfeng, Wang, Mingnian, Yu, Li, Duan, Ruyu, Xia, Pengxi
• Format: Journal Article
• Language: English
• Published: Beijing Tsinghua University Press 01.08.2020; Springer Nature B.V
• Subjects: Atmospheric Protection/Air Quality Control/Air Pollution; Building Construction and Design; Computer simulation; Engineering; Engineering Thermodynamics; Exhaust systems; Fires; Heat and Mass Transfer; Heat loss; High altitude; Monitoring/Environmental Analysis; Pressure effects; Research Article; Smoke; Structural safety; Systems design; Temperature distribution; Ventilation; ambient pressure; natural ventilation; vertical shafts; high-altitude area; plug-holing; boundary-layer separation

Smoke exhaust is of vital importance for life safety and structural safety in a tunnel fire. The smoke movement pattern could affect smoke exhaust efficiency, so it is necessary to determine the patterns in shafts in tunnel fires with natural ventilation systems. However, previous studies have focus...