Filters








6,791 Hits in 9.6 sec

Two Phase Flow Simulation of Fractal Oil Reservoir Based on Meshless Method

Xian Zhou, Fei Wang, Ziyu Wang, Yunfeng Xu
2022 Energy Engineering  
the mathematical model using the weighted least squares meshless method.  ...  of oil-water flow in heterogeneous reservoirs.  ...  The Moving Least Square method (SLS) is used to construct approximate functions in this paper, followed by the Least Square method to discretize the governing equations and establish the corresponding  ... 
doi:10.32604/ee.2022.019072 fatcat:runpalg3jjddnb7bcydmva3xbm

Sediment–Water Interface Flow with the Multiparticle Collision Dynamics

Maciej Matyka
2017 Transport in Porous Media  
One might ask how it behaves in more complex flows. We extend the basic algorithm to handle flows in porous media. For this, we introduce a particle-level drag force.  ...  The extended algorithm is validated in the flow through a porous channel and compared with an analytical solution. Some basic properties of the solver are investigated.  ...  , and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.  ... 
doi:10.1007/s11242-017-0944-7 fatcat:nukwipvswbcz7eoleql2gthlva

Modeling of Flow and Transport in Saturated and Unsaturated Porous Media

Anis Younes, Marwan Fahs, Philippe Ackerer
2021 Water  
The 25 published papers deal with different aspects of physical processes and applications such as unsaturated and saturated flow, flow in fractured porous media, landslide, reactive transport, seawater  ...  Current trends on modeling fluid flow and transport processes in porous media are discussed in the conclusion.  ...  Acknowledgments: The guest editors would like to thank all the anonymous reviewers for their effort in providing valuable comments and improving the scientific quality of the published papers.  ... 
doi:10.3390/w13081088 fatcat:cxj3j5wburbcnhy6irz246yxvy

Hydrodynamics in Porous Media: A Finite Volume Lattice Boltzmann Study

Ahad Zarghami, Chiara Biscarini, Sauro Succi, Stefano Ubertini
2013 Journal of Scientific Computing  
Recently, LBM has also been combined with the REV-scale approach to simulate fluid flows in porous media [11, [30] [31] [32] [33] .  ...  The method is then applied to simulate the flow in partially porous channels, in order to verify its potential application to fractured porous conduits, and assess the influence of the main porous media  ...  Fluid Flow in Partially Porous Conduits The proposed numerical method is here applied to simulate the flow in a selected partially porous conduit, represented in Fig. 7 , together with its coordinate  ... 
doi:10.1007/s10915-013-9754-4 fatcat:qc2ejvmm3zdqpai2qyms2ouavm

Contribution of Pore-Scale Approach to Macroscale Geofluids Modelling in Porous Media

Emanuele Romano, Joaquín Jiménez-Martínez, Andrea Parmigiani, Xiang-Zhao Kong, Ilenia Battiato
2019 Geofluids  
Acknowledgments We sincerely thank Paolo Roberto Di Palma for supporting the editorial work in this special issue.  ...  Fluid flow velocities within porous media show a widely heterogeneous distribution with the coexistence of high velocities, also call preferential paths, and low velocity regions or stagnations zones.  ...  simulations of fluid flow and advection-diffusion of a nonreactive solute in synthetically generated 3D media.  ... 
doi:10.1155/2019/6305391 fatcat:yvxrwmycjffwvjqoywh6x3dbve

Combining the radial basis function eulerian and Lagrangian schemes with geostatistics for modeling of radionuclide migration through the geosphere

L. Vrankar, G. Turk, F. Runovc
2004 Computers and Mathematics with Applications  
Radionuclide concentrations will also be calculated in heterogeneous and partly heterogeneous 2D porous media. (D  ...  In this study, we determine the average and standard deviation of radionuclide concentration with regard to variable hydraulic conductivity, which was modelled by a geostatistical approach.  ...  Concentrations in heterogeneous porous media for one particular simulation (Lagrangian method). Concentrations in heterogeneous porous media for one particular simulation (Eulerian method).  ... 
doi:10.1016/j.camwa.2004.05.006 fatcat:yqlah2bdwzfr7jgnybeop6eniy

Stochastic modeling of the permeability of randomly generated porous media

Yusong Li, Eugene J. LeBoeuf, P.K. Basu, Sankaran Mahadevan
2005 Advances in Water Resources  
In this study, a first-order reliability method (FORM) is combined with a lattice Boltzmann method (LBM) to estimate the permeability of randomly generated porous media.  ...  Permeability of porous media in subsurface environments is subject to potentially large uncertainties due to the heterogeneity of natural systems.  ...  Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.  ... 
doi:10.1016/j.advwatres.2005.01.007 fatcat:qvytxoutxfcnpcq2ne6tflom6m

Asymptotic dispersion in 2D heterogeneous porous media determined by parallel numerical simulations

Jean-Raynald de Dreuzy, Anthony Beaudoin, Jocelyne Erhel
2007 Water Resources Research  
Fluid flow is 11 computed by solving the flow equation discretized on a regular grid and transport triggered by 12 advection and diffusion is simulated by a particle tracker.  ...  dispersion 17 coefficients over 100 simulations for a broad range of heterogeneities [ ] 9 , 0 2 ∈ σ , where σ 2 is 18 the lognormal permeability variance.  ...  Tompson (1989), Numerical 517 simulation of three-dimensional saturated flow in randomly heterogeneous porous 518 media, Transport in Porous Media. 519 Attinger, S., M. Dentz, and W.  ... 
doi:10.1029/2006wr005394 fatcat:uhycqk2qqvbehckihjjegnuwbm

A Numerical Study of Micro-Heterogeneity Effects on Upscaled Properties of Two-Phase Flow in Porous Media

D. B. Das, S. M. Hassanizadeh, B. E. Rotter, B. Ataie-Ashtiani
2004 Transport in Porous Media  
In the present work, numerical simulations have been carried out to investigate how the variations in nature, amount, and distribution of sub-sample scale heterogeneities affect P c -S-K r relationships  ...  This, in turn, may affect the measured two-phase flow relationships.  ...  Acknowledgements The research has been carried out in the framework of the TRIAS project 'Upscaling micro-heterogeneities in two phase flow in porous media', Delft Cluster  ... 
doi:10.1023/b:tipm.0000026079.44992.fb fatcat:52bqdqryarchnmbpks5mjw5tly

Simulating Engineering Flows through Complex Porous Media via the Lattice Boltzmann Method

Vesselin Krastev, Giacomo Falcucci
2018 Energies  
[20] [21] [22] and dissolution [23] modeling; simulation of surface catalysis in fractal porous media [24, 25] ; simulation of gas diffusion layers in fuel cells at a pore level [26] ; and heterogenous  ...  All such studies essentially confirmed the reliability and versatility of LBM-based methods to deal with complex, multi-scale flows through porous media, thus justifying further research and development  ...  Conclusions In this work, ad hoc developed algorithms for the simulation of reactive flows through micro-and nano-scale porous media via the Lattice Boltzmann Method are presented and discussed.  ... 
doi:10.3390/en11040715 fatcat:ulnhnwfxongxppd6lao4mmwk7m

Emergence of non-Fickian transport in truncated pluri-Gaussian permeability fields [article]

Eugenio Pescimoro, Matteo Icardi, Giovanni Porta, Marco Bianchi
2022 arXiv   pre-print
The numerical experiments are run with an Eulerian approach using a novel unified numerical framework based on the finite-volume library \of, for i) generating random pluri-Gaussian porous media, ii) solving  ...  We present a numerical simulation study of advective-diffusive scalar transport in three-dimensional high-contrast discontinuous permeability fields, generated with a truncated pluri-Gaussian geostatistical  ...  Approaches to modelling solute transport in heterogeneous porous media largely differ depending on the scale of interest.  ... 
arXiv:2206.07131v1 fatcat:mh6ehbouljc7tjx3qilc3uubra

Traveling length and minimal traveling time for flow through percolation networks with long-range spatial correlations

A. D. Araújo, A. A. Moreira, H. A. Makse, H. E. Stanley, J. S. Andrade
2002 Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics  
We study the distributions of traveling length l and minimal traveling time t through two-dimensional percolation porous media characterized by long-range spatial correlations.  ...  with quite different scaling exponents.  ...  The least-squares fit to the data in the scaling region gives g l ϭ2.35Ϯ0.05.  ... 
doi:10.1103/physreve.66.046304 pmid:12443319 fatcat:sko5jb7otneldf42yvk7gyq47y

On Preferential Flow, Channeling and Connectivity in Heterogeneous Porous Formations

A. Fiori, I. Jankovic
2011 Mathematical Geosciences  
This paper analyzes the emergence of channeling and preferential flow in heterogeneous porous media.  ...  Comparison with numerical simulations confirms that the main connectivity features were adequately captured by the model.  ...  Summary and Conclusions The present study deals with the emergence of channeling and preferential flow in heterogeneous porous media.  ... 
doi:10.1007/s11004-011-9365-2 fatcat:g37xghbssbckxj5tqpxeklsfdm

Water Flooding and Viscous Fingering in Fracture and Porous Media by Lattice Boltzmann Method

Y. Shiri
2018 Chemical and Biochemical Engineering Quarterly  
Simulation results show the strength and accuracy of Shan-Chen type of LBM in fluid front tracking in porous media in pore scale.  ...  The study of fluid front in porous media in enhanced oil recovery is important.  ...  decrease in heterogeneity in porous media 8 .  ... 
doi:10.15255/cabeq.2017.1203 fatcat:xzj6oorlnrba7klcg4whrtyshi

Pore-Scale Simulation of Shear Thinning Fluid Flow Using Lattice Boltzmann Method

M. Jithin, Nimish Kumar, Ashoke De, Malay K. Das
2017 Transport in Porous Media  
While idealizing the porous media microstructure as arrays of circular and square cylinders, present study uses multi-relaxation time lattice Boltzmann method to conduct pore-scale simulation of shear  ...  Variation in the size and inclusion ratio of the solid cylinders generates wide range of porous media with varying porosity and permeability.  ...  Equation 5 is then used for the calculation of scaling factor, , by least square fitting of equivalent viscosity with porous media shear rate.4 Lattice Boltzmann MethodSince the simulation of fluid flow  ... 
doi:10.1007/s11242-017-0984-z fatcat:woc6zsaxabbmfhyt2x2gdzikce
« Previous Showing results 1 — 15 out of 6,791 results