Cambridge University Press, Aeronautical Journal, p. 1-21, 2022
DOI: 10.1017/aer.2022.95
Full text: Unavailable
Abstract The physics behind the transitions of natural Samaras, or the bio-inspired counterparts, to steady autorotation has been unclear. Theoretical and experimental investigations explore the inertial and aerodynamic characteristics required to guarantee stable transitions of an artificial Samara-like decelerator from chaotic tumbling motions to azimuthal autorotation. A non-dimensional inertial criterion is proposed, which is in accord with experiments.