Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Can we use Aquifers to Monitor Magma Chambers? Using COMSOL Multiphysics® to Investigate Subsurface Strain Changes and Their Effect on Hydrological Systems - new

K. Strehlow[1], J. Gottsmann[1], A. Rust[1]
[1]University of Bristol, Bristol, UK

Groundwater-bearing geological layers respond to and modify the surface expressions of magmatic activity, and they can also become agents of volcanic unrest themselves. Interpretations of unrest signals as groundwater responses to changes in the magmatic system can be found for many volcanoes and include a wide range of phenomena and suggested processes to explain them (e.g., Newhall et al., ...

Using COMSOL for the Transport Modelling of Some Special Cases in a Bentonite Buffer in a Final Repository for Spent Nuclear Fuel

M. Olin[1], V-M. Pulkkanen[1], A. Seppälä[1], T. Saario[1], A. Itälä[1], M. Tanhua-Tyrkkö[1], and M. Liukkonen[1]

[1]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 ...

Effect of Parallel Strip Water Source Spacing on Lateral Infiltration Flux

M. García-Serrana [1], J. L. Nieber [1], J. S. Gulliver [1],
[1] University of Minnesota, Minneapolis, MN, USA

This analysis evaluates the importance of the lateral component of flow on the infiltration of water from parallel strip sources of water on the soil surface. Flow from such sources will be two-dimensional, having both vertical and lateral components. Here we examine the effect of the spacing between parallel strip sources and the texture of the soil on the rate of infiltration through a given ...

CO2 Storage Trapping Mechanisms Quantification

A. Nardi[1], E. Abarca[1], F. Grandia[1], J. Molinero[1]
[1]Amphos 21, Barcelona, Spain

The capture and storage of CO2 in deep geological formations is one of the proposed solutions to reduce CO2 emissions to the atmosphere. CO2 is injected as a supercritical fluid deep below a confining geological formation that prevents its return to the atmosphere. In general, four trapping mechanisms are expected, which are of increasing importance through time: (1) structural, (2) residual ...

Underground Coal Fire Extinction Model Using Coupled Reactive Heat and Mass Transfer Model in Porous Media

S. Suhendra[1], M. Schmidt[1], and U. Krause[1]
[1]Laboratory II.2: “Flammable Bulk Materials and Dusts, Solid Fuels”, Federal Institute for Materials Research and Testing (BAM), Berlin, Germany

Green house gases emission associated with natural hazard of underground coal seam fire has been recognized as a worldwide problem leading to global warming threat. Therefore, in this paper a model to study underground coal fire is presented and the results will be devoted to strategic development of coal fire extinction technology within the framework of Sino-German Coal Fire Research ...

The Effect of the Disintegration of Chemical Stratification on the Time-dependent Behavior of the Earth’s Mantle

A. Galsa, and M. Herein
Eötvös University
Budapest, Hungary

Based on recent results from seismology, geochemistry etc. the distinct chemical character of the D’’ layer (lowest part of the mantle around the Earth’s core) has appeared unequivocally. Numerical calculations have been carried out to investigate the effect of the disintegration, mixing and homogenization of the dense D’’ on the time-dependent behavior of mantle convection. A ...

New Thermo-Mechanical Fluid Flow Modeling of Multiscale Deformations in the Levant Basin

M. Belferman [1], R. Katsman [1], A. Agnon [2], Z. Ben-Avraham [1],
[1] The Dr. Moses Strauss Department of Marine Geosciences, Leon H.Charney School of marine sciences. Haifa University, Mt. Carmel, Haifa, Israel
[2] Institute of Earth Sciences, The Hebrew University, Jerusalem, Israel

The Levant has been repeatedly devastated by numerous earthquakes since prehistorical times. In order to understand the role of the dynamics of the water bodies in triggering the deformations in the Levant basin, a new theoretical thermo-mechanical model is constructed and extended by including a fluid flow component, in COMSOL Multiphysics simulation environment. The latter is modeled on a ...

Non Linear Mechanical and Poromechanical Analyses: Comparison with Analytical Solutions

M. Souley, and A. Thoraval
Ecole des Mines
Parc de Saurupt, France

The long-term behaviour of the underground excavations is a social and economic challenge particularly in the contexts of post-mining or radioactive waste storage. Numerical modelings are currently used to understand and forecast the complex behaviour of rock mass around the underground cavities. In order to accurately perform these multiphysics modelings at high space and time scales, it is ...

Modeling Self-Potential Effects during Reservoir Stimulation in Enhanced Geothermal System - new

G. Perillo[1], A. Monetti[2], A. Troiano[2], M. G. Di Giuseppe[2], C. Troise[2], G. De Natale[2]
[1]University of Naples Parthenope, Naples, Italy
[2]INGV-Osservatorio Vesuviano, Naples, Italy

Geothermal systems represent a large resource that can provide, with a reasonable investment, a very high and cost-effective power generating capacity. Despite its unquestionable potential, geothermal exploitation has long been perceived as limited, mainly because of the dependence from strict site-related conditions, mainly related to the reservoir rock’s permeability. In this work, SP ...

Numerical Evidence of Unrest-Related Electromagnetic Effects in the Campi Flegrei Caldera, Italy

G. Perillo [1], G. De Natale [2], M. G. Di Giuseppe [2], A. Troiano [2], C. Troise [2],
[1] University of Naples Parthenope, Naples, Italy
[2] INGV – Osservatorio Vesuviano, Naples, Italy

Electric, magnetic and electromagnetic (em) methods are widely used to monitor active volcanoes. A review of such applications is presented in Johnston (cit). Em signals were recorded in correspondence of numerous volcanic eruptions, for example in the case of the Mt. Unzen in Giapppone, of Merapi in Indonesia, Etna in Italy and during rapid deformation in Long Valley in California. ...