Publications
Chosen filters:
Chosen filters:
Upscaling of Nonisothermal Reactive Porous Media Flow under Dominant Péclet Number: The Effect of Changing Porosity Hasselt University
Motivated by rock-fluid interactions occurring in a geothermal reservoir, we present a two-dimensional pore scale model of a thin strip consisting of void space and grains, with fluid flow through the void space. Ions in the fluid are allowed to precipitate onto the grains, while minerals in the grains are allowed to dissolve into the fluid, taking into account the possible change in the aperture of the strip that these two processes cause. ...
Periodic reactive flow simulation : proof of concept for steam cracking coils Ghent University
Streamwise periodic boundary conditions (SPBCs) have been successful in reducing the computational cost of simulating high aspect ratio processes. Extending beyond the classic assumptions of constant property flows, a novel approach incorporating non-equilibrium kinetics was developed and implemented for the simulation of an industrial propane steam cracker. Comparison with non-periodic benchmarks provided validation as relative errors on the ...
Understanding Fluid Flow during Tectonic Reactivation: An Example from the Flamborough Head Chalk Outcrop (UK) KU Leuven
© 2018 O. Fäy-Gomord et al. Flamborough Head chalks are located at the extremities of E-W and N-S trending fault systems along the Yorkshire coast (UK). Rock deformation is expressed in Selwicks Bay where a normal fault is exposed along with a high density of calcite veins.The fault mineralization is tested using geochemistry. Crosscutting relationships are used to differentiate between three vein generations: a network of parallel veins that ...
Control of brine composition over reactive transport processes in calcium carbonate rock dissolution : time-lapse imaging of evolving dissolution patterns Ghent University
This study investigates the impact of brine composition-specifically calcium ions and NaCl-based salinity-on the development of dissolution features in Ketton, a porous calcium carbonate rock. Utilizing a laboratory XMT (X-ray microtomography) scanner, we captured time-lapse in situ images of Ketton samples throughout various dissolution experiments, conducting four distinct flow -through experiments with differing brine solutions at a flow rate ...
The phase field approach for reactive fluid-solid interfaces : modeling and homogenization Hasselt University
The overarching topic of this dissertation is multi-phase flow in porous media. In the presence of salts and their ions, precipitation and dissolution can alter the pore-space and have a great impact on flow through porous media. Therefore, we need reliable models that can describe these effects accurately both on the pore-scale and on larger scales. In this dissertation, we first propose several pore-scale models for multi-phase flow including ...
A fully-implicit finite-volume method for multi-fluid reactive and collisional magnetized plasmas on unstructured meshes KU Leuven
© 2016 Elsevier Inc. We present a Finite Volume scheme for solving Maxwell's equations coupled to magnetized multi-fluid plasma equations for reactive and collisional partially ionized flows on unstructured meshes. The inclusion of the displacement current allows for studying electromagnetic wave propagation in a plasma as well as charge separation effects beyond the standard magnetohydrodynamics (MHD) description, however, it leads to a very ...
An Analytical Algorithm of Porosity–Permeability for Porous and Fractured Media: Extension to Reactive Transport Conditions and Fitting via Flow‑Through Experiments Within Limestone and Dolomite KU Leuven
Accurate prediction of permeability evolution is essential for forecasting the long-term performance and lifetime of hydrothermal reservoirs, an important goal in the geothermal, ore, and petroleum industries. Erol et al. (Transp Porous Media 120(2):327–358, 2017. https ://doi.org/10.1007/s1124 2-017-0923-z) introduced a general (non-empirical) analytical Kozeny–Carman type equation for predicting matrix and fracture permeability during ...