Intruders cooperatively interact with a wall into granular matter

Espinosa M, Diaz Melian VL, Serrano-Muñoz A, Altshuler E. 2022. Intruders cooperatively interact with a wall into granular matter. Granular Matter. 24(1), 39.


Journal Article | Published | English

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Author
Espinosa, M.; Diaz Melian, Vicente LISTA; Serrano-Muñoz, A.; Altshuler, E.
Department
Abstract
When a cylindrical object penetrates granular matter near a vertical boundary, it experiences two effects: its center of mass moves horizontally away from the wall, and it rotates around its symmetry axis. Here we show experimentally that, if two identical intruders instead of one are released side-by-side near the wall, both effects are also detected. However, unexpected phenomena appear due to a cooperative dynamics between the intruders. The net horizontal distance traveled by the common center of mass of the twin intruders is much larger than that traveled by one intruder released at the same initial distance from the wall, and the rotation is also larger. The experimental results are well described by the Discrete Element Method (DEM), which reveals that, as the number of intruders horizontally released side-by-side increases, the total energy dissipation per intruder decreases. Finally, DEM simulations demonstrate that the horizontal repulsion is substantially enhanced if groups of intruders are released forming a column near the wall.
Publishing Year
Date Published
2022-01-24
Journal Title
Granular Matter
Acknowledgement
We acknowledge the University of Havana’s institutional project “Granular media: creating tools for the prevention of catastrophes”. The Institute “Pedro Kourí” is thanked for allowing us using their computing cluster. E. Altshuler found inspiration in the late M. Álvarez-Ponte.
Volume
24
Issue
1
Article Number
39
ISSN
eISSN
IST-REx-ID

Cite this

Espinosa M, Diaz Melian VL, Serrano-Muñoz A, Altshuler E. Intruders cooperatively interact with a wall into granular matter. Granular Matter. 2022;24(1). doi:10.1007/s10035-021-01200-8
Espinosa, M., Diaz Melian, V. L., Serrano-Muñoz, A., & Altshuler, E. (2022). Intruders cooperatively interact with a wall into granular matter. Granular Matter. Springer Nature. https://doi.org/10.1007/s10035-021-01200-8
Espinosa, M., Vicente L Diaz Melian, A. Serrano-Muñoz, and E. Altshuler. “Intruders Cooperatively Interact with a Wall into Granular Matter.” Granular Matter. Springer Nature, 2022. https://doi.org/10.1007/s10035-021-01200-8.
M. Espinosa, V. L. Diaz Melian, A. Serrano-Muñoz, and E. Altshuler, “Intruders cooperatively interact with a wall into granular matter,” Granular Matter, vol. 24, no. 1. Springer Nature, 2022.
Espinosa M, Diaz Melian VL, Serrano-Muñoz A, Altshuler E. 2022. Intruders cooperatively interact with a wall into granular matter. Granular Matter. 24(1), 39.
Espinosa, M., et al. “Intruders Cooperatively Interact with a Wall into Granular Matter.” Granular Matter, vol. 24, no. 1, 39, Springer Nature, 2022, doi:10.1007/s10035-021-01200-8.
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