RT Journal Article
T1 Tumbling elimination induced by permeability: An experimental approach
A1 Sánchez-Rodríguez, Jesús
A1 Gallaire, François
K1 Dinámica de fluidos
AB Archetypal falling behaviors of impervious objects are classified into four modes: fluttering, tumbling, steady descent, and chaotic motion. The classical scenario predicts these behaviors to be affected by three dimensionless quantities: thickness-to-width ratio, dimensionless inertia, and Reynolds number. In this article we explore experimentally the effect of permeability and porosity on the falling regimes of porous plates. By drilling several hole distributions in rectangular plates, both permeability and porosity are varied systematically. We discover that the introduction of porosity affects the stability of the falling regimes eliminating tumbling. Using a phenomenological model we show that a decrease in circulation induced by the introduction of holes is the primary mechanism for stabilizing the plates’ trajectories.
PB American Physical Society
YR 2025
FD 2025-01-21
LK https://hdl.handle.net/10630/40642
UL https://hdl.handle.net/10630/40642
LA eng
NO Sánchez-Rodríguez, J., & Gallaire, F. (2025). Tumbling elimination induced by permeability: An experimental approach. Physical Review Fluids, 10(1), 013904.
NO https://openpolicyfinder.jisc.ac.uk/id/publication/32290
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 4 mar 2026