Aerodynamic Modeling of a Flying Wing Featuring Ludwig Prandtl’s Bell Spanload

This paper presents the aerodynamic modeling of a flying wing featuring Ludwig Prandtl’s bell spanload. The models are developed using medium fidelity vortex-lattice method and Reynolds-Averaged Navier–Stokes computational fluid dynamics solution across wide range in-flow angle conditions. A methodology is to directly compare spanwise force distributions from each method. Excellent agreement seen in prediction inertial forces method, as well stability control derivatives dominated by lift moment contributions. phenomenon proverse yaw, caused twist distribution necessary produce spanload, high low-order analysis, with similar off-axis power predicted.