226 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Consejo Superior de Investigaciones CientíficasES27 papers
- Centre National de la Recherche ScientifiqueFR9 papers
- Universitat Politècnica de CatalunyaES9 papers
- Géosciences RennesFR6 papers
- RMIT UniversityAU5 papers
- Université de RennesFR5 papers
- Catalan Institute for Water ResearchES3 papers
- Universitat de GironaES3 papers
- Agricultural Research OrganizationIL2 papers
- Basque Center for Applied MathematicsES2 papers
- IkerbasqueES2 papers
- Institute of Advanced Chemistry of CataloniaES2 papers
22 papers · 1 filter
Stochastic Modeling and Upscaling of Hydrodynamic Transport in Geological Fractures
Alessandro Lenci, Yves Méheust, Marco Dentz +1
Characterizing hydrodynamic transport in fractured rocks is essential for carbon storage and geothermal energy production. Multiscale heterogeneities lead to anomalous solute trans…
Impact of porous media heterogeneity on convective mixing in a Rayleigh-Bénard instability
Rima Benhammadi, Juan J. Hidalgo
This work studies the effect of the heterogeneity of a porous medium on convective mixing. We consider a system where a Rayleigh-Bénard instability is triggered by a temperature di…
Effect of permeability heterogeneity on reactive convective dissolution
Rima Benhammadi, Anne De Wit, Juan J. Hidalgo
The impact of permeability heterogeneity on reactive buoyancy-driven convective dissolution is analyzed numerically in the case of a bimolecular A+BC reaction across varying R…
Experimental and numerical study of CO dissolution in a heterogeneous Hele-Shaw cell
Rima Benhammadi, PAtrice Meunier, Juan J. Hidalgo
We investigate the convective instability resulting from the dissolution of carbon dioxide (CO) into water in a heterogeneous Hele-Shaw cell utilizing both experimental and n…
openKARST: A novel open-source flow simulator for karst systems
Jannes Kordilla, Marco Dentz, Juan J. Hidalgo
We introduce the open-source Python-based code openKARST for flow in karst conduit networks. Flow and transport in complex karst systems remain a challenging area of hydrogeologica…
Turbulent Pipe Flow of Thixotropic Fluids
Noman Yousuf, Daniel Lester, Murray Rudman +2
Complex materials with internal microstructure such as suspensions and emulsions exhibit time-dependent rheology characterized by viscoelasticity and thixotropy. In many large-scal…
Is Chaotic Advection Inherent to Heterogeneous Darcy Flow?
Daniel R. Lester, Michael G. Trefry, Guy Metcalfe +1
At all scales, porous materials stir interstitial fluids as they are advected, leading to complex distributions of matter and energy. Of particular interest is whether porous media…
Dispersion and mixing in heterogeneous compressible porous media under transient forcing
Satoshi Tajima, Marco Dentz
Periodic forcing of flow in compressible porous media is an important driver for solute dispersion and mixing in geological and engineered porous media subject for example to tides…
Pore-scale Mixing and the Evolution of Hydrodynamic Dispersion in Porous Media
Alexandre Puyguiraud, Philippe Gouze, Marco Dentz
We study the interplay of pore-scale mixing and network-scale advection through heterogeneous porous media, and its role for the evolution and asymptotic behavior of hydrodynamic d…
Transport under advective trapping
Juan J. Hidalgo, Insa Neuweiler, Marco Dentz
Advective trapping occurs when solute enters low velocity zones in heterogeneous porous media. Classical local modeling approaches combine the impact of slow advection and diffusio…
Competition is the underlying mechanism controlling viscous fingering and wormhole growth
Yoar Cabeza, Juan J. Hidalgo, Jesus Carrera
Viscous fingering and wormhole growth are complex nonlinear unstable phenomena. We view both as the result of competition for water in which the capacity of an instability to grow…
A Coupled Time Domain Random Walk Approach for Transport in Media Characterized by Broadly-distributed Heterogeneity Length Scales
Tomás Aquino, Marco Dentz
We develop a time domain random walk approach for conservative solute transport in heterogeneous media where medium properties vary over a distribution of length scales. The spatia…
Mixing across fluid interfaces compressed by convective flow in porous media
Juan J. Hidalgo, Marco Dentz
We study the mixing in the presence of convective flow in a porous medium. Convection is characterized by the formation of vortices and stagnation points, where the fluid interface…
Mechanisms of Dispersion in a Porous Medium
Marco Dentz, Matteo Icardi, Juan J. Hidalgo
This paper studies the mechanisms of dispersion in the laminar flow through the pore space of a -dimensional porous medium. We focus on pre-asymptotic transport prior to the asy…
Anomalous dispersion in correlated porous media: A coupled continuous time random walk approach
Alessandro Comolli, Marco Dentz
We study the causes of anomalous dispersion in Darcy-scale porous media characterized by spatially heterogeneous hydraulic properties. Spatial variability in hydraulic conductivity…
Anomalous transport in disordered fracture networks: spatial Markov model for dispersion with variable injection modes
Peter Kang, Marco Dentz, Tanguy Le Borgne +2
We investigate tracer transport on random discrete fracture networks that are characterized by the statistics of the fracture geometry and hydraulic conductivity. While it is well…
Multi-rate mass transfer modeling of two-phase flow in highly heterogeneous fractured and porous media
Jan Tecklenburg, Insa Neuweiler, Jesus Carrera +1
We study modeling of two-phase flow in highly heterogeneous fractured and porous media. The flow behaviour is strongly influenced by mass transfer between a highly permeable (mobil…
Continuous Time Random Walks for Non-Local Radial Solute Transport
Marco Dentz, Peter K. Kang, Tanguy le Borgne
This paper derives and analyzes continuous time random walk (CTRW) models in radial flow geometries for the quantification of non-local solute transport induced by heterogeneous fl…
Pictures of Blockscale Transport: Effective versus Ensemble Dispersion and Its Uncertainty
Felipe P. J. de Barros, Marco Dentz
Using a Lagrangian framework, we discuss different conceptualizations of the blockscale dispersion tensor. We distinguish effective and ensemble blockscale dispersion, which measur…
Continuous Time Random Walks for the Evolution of Lagrangian Velocities
Marco Dentz, Peter K. Kang, Alessandro Comolli +2
We develop a continuous time random walk (CTRW) approach for the evolution of Lagrangian velocities in steady heterogeneous flows based on a stochastic relaxation process for the s…
The Lagrangian Deformation Structure of Three-Dimensional Steady Flow
Daniel R. Lester, Marco Dentz, Tanguy Le Borgne +1
Fluid deformation and strain history are central to wide range of fluid mechanical phenomena ranging from fluid mixing and particle transport to stress development in complex fluid…
Chaotic Mixing in Three Dimensional Porous Media
Daniel R. Lester, Marco Dentz, Tanguy Le Borgne
Under steady flow conditions, the topological complexity inherent to all random 3D porous media imparts complicated flow and transport dynamics. It has been established that this c…