Construction of "Numerical Airplane" and "Numerical Vehicle"-A study on unified simulation of fluid dynamics and flight dynamics

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"Numerical Airplane" and "Numerical Vehicle", which are unified simulation systems of fluid dynamics and flight dynamics, have been constructed. As a basic method of approach," Moving Computational Domain(MCD)"method was proposed in this study. The MCD method is able to simulate a flow field around flying airplane without a limitation of the size of computational region by translating computational domain itself according to the motion of the airplane inside. A whole of flight, from taking-off to climbing, cruising, banked-turn, descending and finally landing, has been completely and continuously simulated in this study. The weak-coupled interaction between fluid dynamics and flight dynamics has been applied in this unified fluid/flight dynamics simulation.