Aircraft dynamics and loads computations using CFD methods

A novel approach to the art of computational simulation of modern flying vehicles using nonlinear aerodynamics by the method of CFD algorithms is presented and should hopefully advance the art of modern aircraft design. The method employs the concept of system identification to characterize nonlinear systems in terms of generalized state space coordinates. Furthermore, modal coordinates are used to formulate the equations of motion of the total vehicle system so that the computational effort will be kept at minimum cost. The proposed analytical concept is validated using simple test cases.