Modelling of Transonic and Supersonic Aerodynamics for Conceptual Design and Flight Simulation

In this paper a comprehensive set of models of aerodynamics for conceptual design that also can be used for flight simulation is presented.In particular these are transonic/supersonic lift coefficient, moment and induced drag.The models are based on a range of models found in literature that have been compiled and reformulated to be more practical to use.Many models in literature exhibit discontinuities or infinities e.g.around Mach one.Care has to be taken to formulate benign expressions that can be used in all parts of the flight envelope.One observation is that models are showing that induced drag have a significant influence on supersonic performance, especially at high altitude and with elevated load factor.The models are implemented in a simulation model so that performance can be evaluated at a mission level already in conceptual design.