Numerical Simulation and Analysis of Whole Process of Seaplane Landing
A numerical simulation scheme for seaplane landing flight is established by using euler multiphase flow model and volume of fluid(VOF)method.The effects of different speeds,angles of attack and water conditions on the longitudinal stability of aircraft during the landing process are analyzed.The main conclusions are as follows:when the aircraft has a small landing speed,the pitch angle is firstly increased,and the aircraft has a tendency to look up.When the aircraft hits a large speed,the pitch angle is firstly decreased,and the aircraft has a tendency to bow down.The best angle of attack for the aircraft to land on the water is 2° and must not exceed 8°,otherwise,a bouncing phenomenon will be occurred.In line with the law of still water,the smaller the speed of the aircraft when it is on the surface of the waves,the smaller the range of pitch angle changes,and the deeper the draft of the aircraft.
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