Research on effects of sea states on air wake

The effect of carrier´s air wake, which causes severe landing error, even landing failure, is not avoidable during carrier-based aircraft landing. At the same time, carrier´s air wake is certainly affected by sea states. From now on, there is no research or paper discussing this phenomenon. The effects of the sea states on air wake are studied in the first time in this paper, and finally got some conclusions. Every component model of carrier air wake was built, which could be used to build the relationships between the air wake and the sea states. According to the models, the wind over deck, the pitch amplitude of carrier, and the pitch frequency are critical factors causing the variety of air wake as sea states are changed. The simulation results show that the carrier air wake is affected severely by sea states. The steady carrier-wake turbulence and the periodic ship-motion-induced turbulence are influenced more significantly, especially for the periodic component. The research results of this paper have important effect on the further studying of landing safety and air wake rejecting.