Bird, J., Bonneton, A., Brouat, V., Panfilova, I.
Ecole Nationale Supérieure de Géologie, Institut National Polytechnique de Lorraine
Seawater intrusion is a significant practical problem for coastal regions, which requires human efforts directed to prevent the degradation of freshwater aquifers. In the present paper we examined the homogeneous confined aquifer in terms of a 2D model which represents a vertical cross-section perpendicular to the sea coast. Several numerical simulations were performed in order to determine the ...
Using COMSOL for the Transport Modelling of Some Special Cases in a Bentonite Buffer in a Final Repository for Spent Nuclear Fuel
M. Olin, V-M. Pulkkanen, A. Seppälä, T. Saario, A. Itälä, M. Tanhua-Tyrkkö, and M. Liukkonen
VTT, Technical Research Centre of Finland, Espoo, Finland
The bentonite barrier is an essential part of a safe spent fuel repository in granitic bedrock. In this work COMSOL Multiphysics® is used in modelling the Thermal (T), Hydrological (H), Mechanical (M) and Chemical (C) phenomena and processes taking place in a bentonite buffer. Special interest lies in systems in which the density of bentonite or bentonite pore water varies. Typically, variation ...
Oberhauser, A.1, Adam, D.2
1 Wissenschaftlicher Mitarbeiter am Institut für Eisenbahnwesen, Verkehrswirtschaft und Seilbahnen, TU Wien, Wien
2 Ingenieurkonsulent für Bauingenieurwesen, Universitätsdozent am Institut für Grundbau und Bodenmechanik der TU Wien
The usage of geothermal heat by the means of railway infrastructure is a relatively new method to tap renewable energy sources. A research project at the Department of Railway Engineering, Transport Economics and Ropeways at Vienna University of Technology in cooperation with the Department of Soil Mechanics and Geotechnical Enginering and the Atlas Copco MAI Ltd. deals with the development of ...
Numerical Inversion of Surface Deformation at Long Valley Caldera (California) By Using 3D Mechanical Models
S. Pepe, P. Tizzani, and A. Manconi
IREA-CNR, Napoli, Italy
We use 3D numerical models to analyze the ground deformation observed at Long Valley Caldera (LVC) between 1992 and 2000 via space-based geodetic techniques. More specifically, we implement a complex model that includes the topography and the material heterogeneities information of LVC. The 3D heterogeneous models are implemented of COMSOL models in a Genetic Algorithm optimization to constrain ...
M. Richter, S. Moenickes, O. Richter, T. Schröder
BASF SE, Agricultural Center, Limburgerhof, Germany
Institute of Geoecology, TU Braunschweig, Braunschweig, Germany
In a soil pore, water flows through the biofilm, where the density of the latter was assumed to represent a flow resistance. This mechanism was implemented as a local change of fluid viscosity proportional to local biofilm density. It was assumed that diffusive substrate transport is possible through the biofilm region such that the biofilm was able to degrade the substance. Maximum flow ...
Dr. Meen-Wah Gui
Department of Civil Engineering, National Taipei University of Technology, Taipei, Taiwan
In this work, COMSOL Multiphysics was used to develop a model to investigate the degree of saturation in sloped terrain. The model was validated via laboratory experiments incorporating Lan’s man-made rainfall slope model test. The validated model was used in an actual case study to simulate the Maokong Landslide.
R. Viola, F. Zama, M.Tuller, and E. Mesini
DICMA, University of Bologna, Bologna, Italy
Dep. of Mathematics, University of Bologna, Bologna, Italy
Dep. of Soil, Water, and Environmental Science, University of Arizona, Arizona, USA
Advances in visualization and discretization of pore structures by means of Computed Tomography, and rapidly increasing computational capabilities, allow numerical modeling of pore-scale fluid flow based on the incompressible Navier-Stokes equations rather than using a macroscopic approach based on Darcy’s law. To test the capabilities of the COMSOL Multiphysics modeling platform, we ...
R. Limacher, R. McHugh, and R. Westerman
Heriot Watt University, Edinburgh, Scotland
The Amplitude vs. Offset (AVO) technique infers the elastic properties of geological targets from pre-stack seismic data. AVO analysis significantly reduces the drilling risks for oil and gas exploration and development, particularly in the Gulf of Mexico. One strand of the current, EC-funded ADEMA Project is to evaluate AVO in coal-bearing strata. The target application areas are long-wall ...
G. Swetha, G. Pavankumar, and A. Manglik
National Geophysical Research Institute
Andhra Pradesh, India
Mathematical modeling tools are extensively used in Geosciences to delineate the earth structure at various spatial scales as well as to simulate coupled earth processes involving multiphysics concepts. COMSOL, a Multiphysics finite element method based numerical modeling package, can be used to analyze complex systems like earth where various physical parameters are involved and ...
S. Cambon, I. Bogdanov
CHLOE, Bâtiment UFR Sciences et Techniques, Pau Cedex, France
Non-conventional hydrocarbon resources become more and more challenging object for energy producing companies throughout the world. Being already known and long-explored method, the electromagnetically (EM) assisted recovery constitutes a promising idea of technology for deposits of such a kind. COMSOL has been used recently for modeling the thermal multiphase flow through porous media in the ...