RSS 1.0FRLP - I+D+i - GRUTN - GMG - ARTÍCULOS DE DIVULGACIÓN, CONFERENCIAS Y OTRAS PRODUCCIONES (TV, RADIO Y DIARIOS)
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Determination of the angle of repose and coefficient of rolling friction for wood pellets
(2022-02-08)The determination of the angle of repose for granular materials is indispensable for their handling and the design of containers and technological processing equipment. On the other hand, computational simulations have ... -
Effect of bevelled silo outlet in the flow rate during discharge
(2023-07-29)We investigate the effect of a bevelled (or slanted) outlet on the discharge rate of mono-sized spheres from a quasi-two-dimensional silo, using the discrete element method. In contrast to hopper discharges, where the ... -
Differential equation for the flow rate of discharging silos based on energy balance
(2020-05)Since the early work of Hagen in 1852 and Beverloo et al. in 1961, the flow rate of granular material discharging through a circular orifice from a silo has been described by means of dimensional analysis and experimental ... -
Stability and conductivity of proppant packs during flowback in unconventional reservoirs: a CFD–DEM simulation study
(Elsevier B.V., 2021)We present simulations using a coupled Computational Fluid Dynamics–Discrete Element Method (CFD–DEM) approach for a slurry of millimeter-sized particles in water which is squeezed between two walls and then made flow ... -
Universal features of the stick-slip dynamics of an intruder moving through a confined granular medium
(2022-04-21)Experiments and simulations of an intruder dragged by a spring through a two-dimensional annulus of granular material exhibit robust force fluctuations. At low packing fractions (φ < φ0), the intruder clears an open ... -
Self-assembly of self-propelled magnetic grains
(2021)In this work, we study bidisperse mixtures of self-propelled magnetic particles of di erent shapes via discrete element method simulations. We show how these particles self-assemble into clusters and how these clusters ... -
On the use of magnetic particles to enhance the flow of vibrated grains through narrow apertures
(2021-06-28)The ow of grains through narrow apertures posses an extraordinary challenge: clogging. Strategies to alleviate the effect of clogging, such as the use of external vibration, are always part of the design of machinery for ... -
Intruder in a two-dimensional granular system: effects of dynamic and static basal friction on stick-slip and clogging dynamics
(2019-10-15)We discuss the results of simulations of an intruder pulled through a two-dimensional granular system by a spring, using a model designed to lend insight into the experimental findings described by Kozlowski et al. [Phys. ... -
Two approaches to quantification of force networks in particulate systems
(2021-02-24)The interactions between particles in particulate systems are organized in ‘force networks’, mesoscale features that bridge between the particle scale and the scale of the system as a whole. While such networks are known ...