Safety Of Air Traffic In The Wake Interval Study

Wake vortex separation standards are used to prevent hazardous wake vortex encounters which mainly found in the final approach course within the airport termination zone. Firstly , this paper analysis the mechanism of the vortex decay and research the influence on the safety of the flight; then .several different radar wake vortex separation standards are compared and some basic guidelines are developed to establish the future vortex standards .In addition ,one kind of advance vortex classification for the civil airplane is proposed .Secondly ,an encounter hazard model which established for the following aircraft and a simple vortex decay model which mostly concern with the proceeding one are developed; and a safe separation model can be derived from the both .Finally ,through the simulation calculation ,the correctness of the vortex classification of different types of aircrafts are tested and proved .