2026-05-28T17:17:31Zhttps://riuma.uma.es/rest/oai/requestoai:riuma.uma.es:10630/406422026-02-03T11:12:44Zcom_10630_2254col_10630_37953
RIUMA. Repositorio Institucional de la Universidad de Málaga
author
Sánchez-Rodríguez, Jesús
author
Gallaire, François
2025-11-07T10:44:23Z
2025-11-07T10:44:23Z
2025-01-21
Sánchez-Rodríguez, J., & Gallaire, F. (2025). Tumbling elimination induced by permeability: An experimental approach. Physical Review Fluids, 10(1), 013904.
https://hdl.handle.net/10630/40642
10.1103/PhysRevFluids.10.013904
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.
eng
Dinámica de fluidos
Tumbling elimination induced by permeability: An experimental approach
journal article
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Experimental_Porous_Plates-2.pdf