O. Punkkinen, A. Jorma, K. Kari, and M. Olin
B+Tech, Helsinki, Finland
Posiva, Eurajoki, Finland
VTT, Espoo, Finland
In this work the issue of saturation phase erosion caused by groundwater leakages was approached both experimentally and computationally by employing COMSOL\'s Earth Science Module. We evaluated the total mass of eroded bentonite out of a cylindrical erosion channel both numerically and experimentally, and studied its dependence on time. It was observed that logarithmic eroded mass loss as a ...
J. Perko, S. C. Seetharam, and D. Mallants
Belgian Nuclear Research Centre
Knowledge of the effect of fractures on fluid flow and transport is of great interest in many fields. In radioactive waste disposal the interest in fractures within concrete structure is because they are mostly more permeable than the matrix, there is less or no sorption and because long-term chemical concrete degradation could progress faster. Assessment of long-term transport processes is ...
A. Sarraf Shirazi, J. Mmbaga, and R. Gupta
University of Alberta
Underground coal gasification (UCG) has received renewed interest due to its potential for utilization of the vast amounts of coals available in deep underground seams and the current drive towards clean coal utilization. UCG process involves the reaction between air/steam and coal in deep underground seams to form a combustible gas which is brought to surface via a production well and used as a ...
H. Ishimori, K. Endo, H. Sakanakura, M. Yamada, M. Osako
Ritsumeikan University, Kusatsu, Shiga, Japan
National Institute for Environmental Studies, Tsukuba, Ibaraki Prefecture, Japan
This paper presents the numerical simulation model for radiocesium leaching and transporting behavior in municipal solid waste (MSW) landfill and discusses on the design for the required geometry and properties of the impermeable final cover and the soil sorption layer, which work for containment of hazardous waste such as radiocesium-contaminated MSW generated by Fukushima Daiichi nuclear ...
Flores, N., Gamio, J.C., Ortiz-Alemán, C., Damián, E.
Instituto Mexicano del Petróleo, México, D.F., México
Multiphase flow characterization is an important task for monitoring, measuring or controlling industrial processes. This can be done by means of process tomography. One category of process tomography, is electrical capacitance tomography (ECT), where the cross section to be imaged is surrounded by a set of capacitance electrodes formed from simple metal plates. This paper presents the ...
MSS-Mat Laboratory, CNRS, Ecole Centrale Paris, Châtenay Malabry, France
Ensuring the quality of underground water and controlling its quantity is of major concern for the population. Therefore, this subject attracts many students from different specialties at different levels of their curriculum. In fact, the pedagogic objectives of the course may be different according to the level or/and interest of the students and COMSOL is used due to its versatility. In this ...
G. Liu, and A. V. Smirnov
Mechanical and Aerospace Engineering Department, West Virginia University, Morgantown, WV, USA
In this study, a computer simulation was conducted with the purpose of predicting the carbon dioxide transport in two phases in a multi-layer environment of a typical non-mineable coal-bed basin based on the variable saturation model.The results indicate that the transport of carbon dioxide was affected by the properties of the seal layers.With carbon dioxide injection, the porosity, relative ...
Modeling Geophysical Fluid Flows Using COMSOL: Working Towards a Hydrodynamic Model of the Chesapeake Bay
M. Boe, R. Malek-Madani, D. R. Smith, and M. E. C. Vieira
United States Naval Academy, Annapolis, MD, USA
The outline for this presentation is:Chesapeake Bay BasicsMathematical FrameworkLinear Western Intensification Models -Stommel (1948), Munk (1950)Non-linear equations solved in rectangular geometriesThree-dimensional Chesapeake Bay bathymetry attempts
D-S. Jeng, X. Luo, and J. Zhang
Division of Civil Engineering, University of Dundee, Dundee, Scotland, UK
In this paper, an integrated model for ocean waves propagating over a submerged coastal structure, based on COMSOL Multiphysics, is presented. In the model, Navier-Stoke Equation is solved for the wave propagation and Biot’s poro-elastic model is solved for the porous seabed. The new feature of this model is to integrate both wave and soil models into one model. This can be achieved within ...
L. Wissmeier, and D. A.Barry
GIT HydroS Consult GmbH, Freiburg, Germany
EPFL, Lausanne, Switzerland
We present a software tool for simulations of subsurface flow and solute transport in combination with comprehensive intra-phase and inter-phase geochemistry. The software uses PHREEQC as a reaction engine to COMSOL Multiphysics®. The coupling with PHREEQC gives major advantages over COMSOL’s built-in reaction capabilities, i.e., the soil solution is speciated from its element composition ...