Numerical investigation on wind disturbance of linear terminal buildings and aerodynamic loads of parked aircraft

This paper studies the linear terminals and parked aircraft, and conducts CFD simulations with the RANS SST k-ω to explore the coupled impacts of sideslip angle, terminal length and height on apron wind fields and the aerodynamic loads of the parked aircraft around the linear terminal. Results reveal that wind fields of large linear terminals are highly sensitive to 0∼90° sideslip angles, and the long terminal under sideslip angle 60° produces the strongest flow acceleration and maximum aircraft overturn risk. At 60°, terminal length presents dual effects on wind field distribution; moderate length expansion can weaken wind disturbances. Terminal height dominates contact stand wind distribution at 60°, showing differentiated flow amplification at three parking locations. Terminal wake drastically magnifies aircraft pitching moment, with small yawing moment growth. Terminals of 20m ∼ 24 m height enable optimal aerodynamic stability for parked aircraft. This work provides support for terminal design, stand layout and wind management.