Research on the Models of Wind Shear and Atmospheric Turbulence for Their Application in Flight Simulation
|School||China Civil Aviation Flying College|
|Course||Vehicle Operation Engineering|
|Keywords||Flight Dynamics Wind shear model Atmospheric turbulence model Numerical simulation Engineering practicality|
Flight simulator flight training plays an increasingly important role , its core is a flight dynamics simulation system , the fidelity of the core requirements of the flight dynamics simulation . Changes in the wind field is a direct impact to the flight dynamics simulation fidelity real environmental factors , wind shear and atmospheric turbulence as the main manifestation of the changes in the wind field , their model flight simulation , which will undoubtedly enhance flight simulation fidelity has important practical significance . Starting from the point of view of engineering applications , in order to improve the fidelity of the flight dynamics simulation system for the purpose of theoretically suitable for flight dynamics simulation of wind shear and atmospheric turbulence model analysis and numerical simulation , and in practice will for flight dynamics simulation . Collection of various wind shear model analysis, including micro downburst model and tally up the ( 1 - cosine ) type discrete gust model , the ground boundary layer wind shear models , including several kinds of suitable for flight dynamics simulation of wind shear engineering model and its numerical simulation . Atmospheric turbulence numerical simulation techniques were carried out on the the Dryden model and the Von Karman model numerical simulation and testing , and improve simulation accuracy requirements , the use of double random exchange minimization method improved the simulation results . Variable wind field the aircraft full amount of the equations of motion , the selected wind shear and atmospheric turbulence model flight simulation to obtain the corresponding the aircraft response curve , summed up the flight performance characteristics of these curves . In this paper, the study of wind shear and atmospheric turbulence model flight simulation has better practicability useful exploration of the research work is done to improve the fidelity flight dynamics simulation system .