Aerodynamic Shape Optimization of Propulsion Airframe Integration While Matching Lift Distribution

We present a method for applying a direct constraint on the total lift distribution of a configuration while performing aerodynamic shape optimization. The formulation of this constraint relies on lift superposition. As a result this paper explores four different methods for computing aerodynamic influence coefficient matrices using the high fidelity inviscid flow solver Cart3D and the vortex lattice method code AVL. We also present results of matching a desired lift distribution using lift superposition and Cart3D for both a subsonic and transonic flow. Finally, a constraint on lift distribution during a wing-body optimization problem is performed and the results are presented.