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The supercooled droplets impingement on complicated icing surface is investigated with the Eulerian method.A simplified air/droplets two-phase model for aircraft icing is established, and an effective way is proposed to deal with the dilute, weakly coupled air/droplets flows for aircraft icing problem.Compared with the traditional Lagrangian method, it indicates that Eulerian method gives a better prediction when the multi-zone problem occurs on complicated icing surface.