Coupling irregular particles and fluid: Complex dynamics of granular flows

Granular materials are often encountered in nature, but the effect of their morphological properties is poorly understood when they accompanied by fluid. This set complexity brings inertial, viscous, frictional, and elastic forces together whose connections remain debated. We report a novel coupled framework to study particle morphology on dynamics granular particles. The mechanical behavior modeled new micro-mechanical model found be greatly impeded movement difference caused shape alleviated presence Our findings demonstrated using collapse process we that dislocation both hindered enhanced viscous lubrication effects fluid, respectively. results show fluid becomes dominant compared particles become more irregular.