By solving the three-dimensional Reynolds averaged Navier-Stokes(N-S)equations,the detailed flow field information of the reverser flow was obtained under different taxiing-velocity conditions during the landing process of a large transport aircraft.The single engine calculation shows that in no case the reverser flow will be re-ingested by the engine.The aircraft/engine integrated calculation indicates that with the decrease of relative wind Mach number,the possibility of the reverser flow being re-ingeste...