Study on Aerodynamic Force Effect on Personnel Safety in High-speed Railway Tunnel

In order to guarantee the safe operation of high-speed railway,according to the 100 m2 double-line tunnel cross-section which is generally used in high-speed railway of China,the authors of this paper build a tunnel-air-train simulation model,based on the three-dimensional incompressible Navier-Stokes equations and the standard k-e turbulence model.This model can simulate two situations one of which is that a single train runs through a tunnel normally while the other is that another train runs beside a train parked in the tunnel.Time-history variation rules and space distribution characteristics of aerodynamic force on people on evacuation passageways are studied respectively at 120,200,250,300 and 350 km per hour.Furthermore,the authors discuss the influence of the aerodynamic force on people safety.The results show that the aerodynamic force changes with time and space,people should avoid activities at dangerous time and places,and that since people safety may be threatened by the aerodynamic force in the two situations above,effective measures should be taken to avoid accidents.