Wake modeling and simulation of tilt rotor UAV shipboard landing

The shipboard landing of UAV is the important function in the oceanic operation of UAV which meets the severe environment of gust, vortex, and wake around the superstructures on the ship as well as of the movement of ship board in roll, pitch, and heave by wind and sea wave. As the airwake on the shipboard affects the flying quality, the superstructure on the ship is designed to mitigate the generation of airwake in the construction of ship. Prior to the actual flight of aircraft, the effect of airwake has to be analyzed and predicted with aerodynamic modeling. In this paper, the modeling for airwake based on FLUENT against superstructure on the ship of 4,000 ton displacement is conducted and added to aircraft simulation model in order to respond at the existence of airwake on the ship deck. This paper gives the procedure of airwake modeling on the ship, its application to flight simulation model, and integrated simulation results.