Tail length influences swimming speed of helical swimmers in granular media
Por:
Valdés, R, de la Calleja, E, Zenit, R, Godínez, FA
Publicada:
6 dic 2024
Resumen:
We study the locomotion of helical-tailed robots through a granular matter by varying the length of their tails. The swimming robots were built with a rigid helix attached to a magnetic cylindrical head, and were driven using a rotating magnetic field, which produced their spinning and forward self-propel across the media. Experiments show that the forward speed of the swimmers in granular matter increases with the tail length (with more turns), contrary to what was observed in viscous Newtonian fluids. A modified resistive force theory model was used to predict the forward velocity of the swimmers (including head and tail) in the granular medium, leading to good agreement with the experimental data, especially when the number of tail loops is higher than three. The findings of this research highlight the key role that tail length and head drag play in the swimming performance in a granular environment. This insight can be valuable in designing robots and vehicles optimized for such medium.
Filiaciones:
Univ Iberoamer, Dept Estudios Ingn Innovac, Ciudad De Mexico 01219, Mexico
CIATEQ AC, Ctr Tecnol Avanzada, Queretaro 76150, Mexico
Brown Univ, Sch Engn, Providence, RI 02912 USA
Univ Nacl Autonoma Mexico, Unidad Invest & Tecnol Aplicadas, Inst Ingn, Apodaca 66629, Nuevo Leon, Mexico
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