2024/11/19 by Douglas Daniel de Carvalho, Yann Bertho, Antoine Seguin +2 · 1 voice
Engineering · Environmental Science · #Granular flow and fluidized beds #Landslides and related hazards #Particle Dynamics in Fluid Flows
paper · doi:10.1103/physrevfluids.9.114303
openalex publication_date 2024/11/19 · openalex created_date 2024/11/20 · openalex updated_date 2026/07/28
When multiple intruders move through a granular material, complex grain-mediated interactions can arise between them. In this study, we experimentally investigate the case of two spheres moving side by side in a granular medium, focusing on how their interaction affects the drag force experienced by each sphere. Our results show that the presence of a neighboring sphere reduces the drag on the first sphere, with this reduction becoming more significant as the spheres are closer to each other. Furthermore, the amount of relative drag reduction is observed to increase with the intruders' depth in the granular medium.