Aerodynamic force and moment characteristics of high-speed trains with brake wind plates under strong crosswind
Based on the three-dimensional steady and incompressible viscous flow field N-S(Navier-Stokes)and k-e(turbulent kinetic energy-dissipation rate)double equation model,computational fluid dynamics method is adopted to analyze the aerodynamic and moment characteristics of high-speed trains with brake wind plates under strong crosswind.The performances of the aerodynamic resistance,lift,lateral force,rolling moment,yaw moment and pitching moment of trains with different running speed classes and different yaw angles are numerically simulated and analyzed.At the same time,the aerodynamic forces and moments of high-speed trains with and without brake wind plates are calculated and explained in detail.
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