Research on Flight Numerical Simulation of Aerodynamic Conditions

In recent years, due to the development of science and technology, the use of computer systems to simulate flight exercises, as well as in the digital world or the use of digital and reality in combination with the completion of flight exercises has become possible.Moreover, with the further development of technology, the application of this simulation technology will be more extensive, and the effect of simulation will be more and more highly.Modern aircraft control is particularly complex, especially the new fighter, with ultra conventional motor performance, intelligent avionics systems and electronic warfare systems, as well as powerful fire control system.Pilot not only to have superb driving skills, should also have skilled in the use of other systems to deal with and special ability, which to a pilot proposed higher requirements, improve the level of training pilots to become air force of each country need to solve problems.Therefore, all kinds of flight simulation system have become one of the important means to train pilots.Aircraft under different aerodynamic parameters, wings, tail, engine inlet leading edge, windshield, airspeed tube, antenna with different gas dynamic characteristics.In this paper, the typical aerodynamic conditions are obtained by numerical simulation.The numerical simulation method is used to study the influence of aerodynamic characteristics on the performance of the wing.Main research work are:The N-S equation to calculate the icing of air flow field, turbulence model selected S-A model suitable for the research aircraft, with Euler method to establish air control equation;The flight simulation system is built by using the distributed simulation technology, and the flight simulation framework based on the high level architecture is preliminarily constructed.