Modeling and simulation of atmospheric synthetic wind field in flight simulation

As an important part of atmosphere, impact of wind field on the aircraft cannot be ignored in engineering and research. Four forms of wind model are modeled and simulated to describe the atmospheric synthetic wind field. To solve the problem of large amount of calculation existed in traditional generation method of three-dimensional atmospheric turbulence field, correlation function was introduced to generate atmospheric turbulence field of Von Karman spectrum. According to the vortex core boundary conditions, a new damping factor was given to improve the vortex ring principle model´s singular point in the vortex filament. These models of synthetic wind field were tested in one type of flight simulator and the results indicate these methods´ effectiveness. These models can be used in flight simulation and the design of the flight simulator.