Abstract
This paper presents the development of a novel parameterisation method for aerodynamics which allows topological flexibility. This new parameterisation method builds geometries using restricted snakes to recover Volume Of Solid (VOS) data under a minimum length constraint. Geometric inverse design results are presented showing the ability of the parameterisation to recover a range of aerodynamic shapes to a set tolerance. The Aerodynamic Design Optimization Discussion Group (ADODG) Eulerian drag minimisation of the NACA 0012 (case 1) was attempted using a conjugate gradient optimiser leading to a drag coefficient of 66 counts. Results of supersonic drag minimizations under an area constraint were compared against known linear optima, showing equivalent or better aerodynamic performance in all cases. The topological flexibility of the parametrisation allowed reductions in drag of 80% compared to the Busemann biplane, a multiplane profile predicted to have no wave drag at supersonic speed by linear theory
| Original language | English |
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| Title of host publication | 55th AIAA Aerospace Sciences Meeting |
| Publisher | American Institute of Aeronautics and Astronautics Inc. (AIAA) |
| Number of pages | 25 |
| ISBN (Electronic) | 9781624104473 |
| DOIs | |
| Publication status | Published - Jan 2017 |