## S. K. Matthäi

18 records found

1

## Authored

We benchmark a family of hybrid finite element-node-centered finite volume discretization methods (FEFV) for single- and two-phase flow/transport through porous media with discrete fracture representations. Special emphasis is placed on a new method we call DFEFVM in which the ...

Accurate numerical simulation of solute transport or multiphase flow through heterogeneous porous media is still a challenge. One reason is that in continuum models, sharp material interfaces are difficult to represent. The finite-element method allows representation of such d ...

A second order in space accurate implicit scheme for time-dependent advection-dispersion equations and a discrete fracture propagation model are employed to model solute transport in porous media. We study the impact of the fractures on mass transport and dispersion. To model ...

## Simulation of solute transport through fractured rock

### A higher-order accurate finite-element finite-volume method permitting large time steps

Discrete-fracture and rock matrix (DFM) modelling necessitates a physically realistic discretisation of the large aspect ratio fractures and the dissected material domains. Using unstructured spatially adaptively refined finite-element meshes, we find that the fastest flow oft ...

## The impact of hierarchical fracture networks on flow partitioning in carbonate reservoirs

### Examples based on a Jurassic carbonate ramp analog from the High Atlas, Morocco

Simulation grid blocks of naturally fractured reservoirs contain thousands of fractures with variable flow properties, dimensions, and orientations. This complexity precludes direct incorporation into field-scale models. Macroscopic laws capturing their integral effects on mul ...

Realistic simulation of structurally complex reservoirs (SCR) is challenging in at least three ways: (1) geological structures must be represented and discretized accurately on vastly different length scales; (2) extreme ranges and discontinuous variations of material properti ...

## The dynamics of mid-ocean ridge hydrothermal systems

### Splitting plumes and fluctuating vent temperatures

## Multiphase thermohaline convection in the earth's crust

### I. A new finite element - Finite volume solution technique combined with a new equation of state for NaCl-H_{2}O

## Multiphase thermohaline convection in the earth's crust

### II. Benchmarking and application of a finite element - Finite volume solution technique with a NaCl-H_{2}O equation of state

Water flooding of fractured reservoirs is risky because water breakthrough can occur early, leading to a prohibitively high water cut. In mixed or oil-wet carbonates, capillary drive is negligible or absent. For this scenario, we investigate fluid-pressure-driven displacement ...