| Texto completo | |
| Autor(es): |
Carvalho, Douglas D.
;
Lima, Nicolao C.
;
Franklin, Erick M.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW E; v. 108, n. 5, p. 10-pg., 2023-11-22. |
| Resumo | |
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) | |
| Processo FAPESP: | 19/20888-2 - Simulações CFD-DEM em leitos fluidizados |
| Beneficiário: | Nicolao Cerqueira Lima |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 18/14981-7 - Modelagem de escoamentos granulares densos: experimentos, simulações numéricas e análises de estabilidade |
| Beneficiário: | Erick de Moraes Franklin |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores - Fase 2 |
| Processo FAPESP: | 20/04151-7 - Deslocamento de um intruso em um meio granular |
| Beneficiário: | Douglas Daniel de Carvalho |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |