XU Lin, ZHANG Xu. CFD Optimization on Coupling Smoke Control Parameters in Tunnel with Nonsymmetrylaid Damper[J]. Journal of Civil and Environmental Engineering, 2009, 31(3): 119-123.
With respect to three vents located on both sides of the fire source in an asymmetrical arrangement
series of CFD simulations and reducedscale experimental tests are carried out. And further analysis is undertaken for several parameters
such as airflow distribution
flue gas temperature and smoke horizontal diffusion distance etc
with different combinations of the longitudinal velocity and exhaust rate. It is found that horizontal diffusion distance of smoke is confined in three vents bordering the fire source and optimization design with minimal exhaust rate is further proposed. With multiple CFD simulations
series of dimensionless correlations are recommended for further tunnel fire safety design with some parameters
such as heat release rate
tunnel inclination and optimized parameters with slope variation.