A Fast Aerodynamic Model for Aircraft Multidisciplinary Design and Optimization Process

A multidisciplinary design analysis and optimization process is developed at ONERA for the of tube wing blended wing–body aircraft configurations. This composed different disciplinary modules (geometry, propulsion, aerodynamics, structure, handling qualities flight mission), overall considers fidelity levels these each step process. article describes low-fidelity aerodynamic module used during preliminary Analytical formulations retained lift drag components are presented in first part. Then, performances estimated by on some reference configurations compared with both numerical experimental data, showing a quite good agreement not only global performance but also individual components.