| Full text | |
| Author(s): |
Carvalho, Douglas D.
;
Lima, Nicolao C.
;
Franklin, Erick M.
Total Authors: 3
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW E; v. 108, n. 5, p. 10-pg., 2023-11-22. |
| Abstract | |
Craters formed by the impact of agglomerated materials are commonly observed in nature, such as asteroids colliding with planets and moons. In this paper, we investigate how the projectile spin and cohesion lead to different crater shapes. For that, we carried out discrete element method computations of spinning granular projectiles impacting onto cohesionless grains for different bonding stresses, initial spins, and initial heights. We found that, as the bonding stresses decrease and the initial spin increases, the projectile's grains spread farther from the collision point, and in consequence, the crater shape becomes flatter, with peaks around the rim and in the center of the crater. Our results shed light on the dispersion of the projectile's material and the different shapes of craters found on Earth and other planetary environments. (AU) | |
| FAPESP's process: | 19/20888-2 - CFD-DEM simulations of fluidized beds |
| Grantee: | Nicolao Cerqueira Lima |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 18/14981-7 - Modeling of dense granular flows: experiments, numerical simulations and stability analyses |
| Grantee: | Erick de Moraes Franklin |
| Support Opportunities: | Research Grants - Young Investigators Grants - Phase 2 |
| FAPESP's process: | 20/04151-7 - The motion of an intruder within granular matter |
| Grantee: | Douglas Daniel de Carvalho |
| Support Opportunities: | Scholarships in Brazil - Doctorate |