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Difference Algorithm of the Posture of Airliner Forced Landing onto Water in Bowing Stage

By using solid-fluid coupling, momentum conservation, motion equation and pressure drag, a difference algorithm is employed to find the posture of airliner landing onto water in bowing stage for the different angle. The results show that the final velocity is positive correlated with impact angle when the angle is less than 80; the final velocity is negative correlated with impact angle when the angle is more than 80, waves make the immersed part decrease, which leads to a buoyancy reduction and acceleration increment.