Confined flows of particles can lead to clogging, and therefore failure, of various fluidic systems across many applications.As a result, design guidelines need to be developed to ensure that clogging is prevented or at least delayed.In this Letter, we investigate the influence of the angle of reduction in TV Display Assembly the cross section of the channel on the bridging of semidilute and dense non-Brownian suspensions of spherical particles.We observe a decrease of the clogging probability with the reduction of the constriction angle.
This effect is more pronounced for dense suspensions close to the maximum packing fraction where particles are in contact in contrast Knitwear to semidilute suspensions.We rationalize this difference in terms of arch selection.We describe the role of the constriction angle and the flow profile, providing insights into the distinct behavior of semidilute and dense suspensions.