Numerical Simulation of Aerodynamic Characteristics of Aircraft

Abstract

Modeling is the key to study the flight real-time simulation system, flight simulation numerical analysis to aerodynamic characteristics of the aircraft simulation, aircraft and six degree of freedom nonlinear equation solution, simulation of aircraft motion force and moment and flight environment influenced by the simulation on the fly. The flight simulation system established in this paper is to simulate the flight attitude of the aircraft during the flight, so the core problem is to solve the six degree of freedom nonlinear equations. In order to study the characteristics of the complex flow field structure, a CFD analysis method based on the momentum source model is established. The preliminary numerical analysis of the wing is carried out before and after the maneuver of the aircraft by using the method. The law of aerodynamic force, aerodynamic torque and the change of the focal position of the wing is given.