Listar por autor "Pugnaloni, Luis"
Mostrando ítems 21-28 de 28
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Simulación del transporte de agente de sostén en estimulación hidráulica
Baldini, Mauro (2020)En los reservorios convencionales el hidrocarburo se encuentra embebido en rocas que poseen alta porosidad y permeabilidad, por ello puede fluir con relativa facilidad a través de la matriz porosa. Por este motivo la ... -
Stability and conductivity of proppant packs during flowback in unconventional reservoirs: a CFD–DEM simulation study
Vega, Federico G.; Carlevaro, Manuel; Sánchez, Martín; Pugnaloni, Luis; 0000-0003-3528-7614; 0000-0001-5766-6514 (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 ... -
Structure of force networks in tapped particulate systems of disks and pentagons I Clusters and loops
Pugnaloni, Luis; Carlevaro, Manuel; Kramar, M; Mischaikow, K; Kondic, L (American Physical Society, 2016)The force network of a granular assembly, defined by the contact network and the corresponding contact forces, carries valuable information about the state of the packing. Simple analysis of these networks based on the ... -
Structure of force networks in tapped particulate systems of disks and pentagons II Persistence analysis
Kondic, L.; Kramar, M.; Pugnaloni, Luis; Carlevaro, Manuel; Mischaikow, K. (American Physical Society, 2016)In the companion paper [Pugnaloni et al., Phys. Rev. E 93, 062902 (2016)], we use classical measures based on force probability density functions (PDFs), as well as Betti numbers (quantifying the number of components, ... -
Tapped granular packings described as complex networks
Arévalo, Roberto; Pugnaloni, Luis; Maza, Diego; Zuriguel, Iker (Taylor and Francis, 2013)We characterize the structure of simulated two-dimensional granular packings using con- cepts from complex networks theory. The packings are generated by a simulated tapping protocol, which allows us to obtain states in ... -
Transporte y estabilidad de agentes de sostén en fractura hidráulica para la estimulación de yacimientos de hidrocarburos no convencionales
Fernández, Matías (2018-11-23)Los hidrocarburos de un sistema petrolero no convencional se encuentran embebidos en formaciones rocosas de baja permeabilidad. Como consecuencia, durante su explotación el flujo del hidrocarburo a través de la matriz ... -
Universal features of the stick-slip dynamics of an intruder moving through a confined granular medium
Pugnaloni, Luis; Carlevaro, Manuel; Kozlowski, Ryan; Zheng, Hu; Kondic, Lou; Socolar, Joshua E. S.; 0000-0001-5766-6514; 0000-0003-3528-7614; 0000-0002-2602-038X; 0000-0002-9606-9947; 0000-0001-6966-9851; 0000-0003-0532-7099 (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 ... -
Wang Landau algorithm for entropic sampling of arch based microstates in the volume ensemble of static granular packings
Slobinsky, Demian; Pugnaloni, Luis (Papers in Physics, 2015)We implement the Wang-Landau algorithm to sample with equal probabilities the static configurations of a model granular system. The "non-interacting rigid arch model" used is based on the description of static configurations ...