Hier finden Sie Veröffentlichungen und Präsentationen der weltweit stattfindenden COMSOL-Konferenzen. In diesen präsentieren Ihre Fachkollegen ihre neuesten mit COMSOL Multiphysics entwickelten Produkte und Ideen. Die Forschungsthemen umfassen ein weites Feld von Industrien und Anwendungsbereichen, die von Mechanik und Elektronik über Strömungen bis zur Chemie reichen. Nutzen Sie die Quick Search, um die zu Ihrem Forschungsbereich passenden Präsentationen zu finden.

Exergy Analysis of Polymer Flooding in Clastic Reservoirs

A. Hassan [1], H. Bruining [2], T. Musa [3], R. Farajzadeh [2],
[1] Delft University of Technology, Delft, The Netherlands, and Sudan University of Science and Technology, Khartoum, Sudan
[2] Delft University of Technology, Delft, The Netherlands
[3] Sudan University of Science and Technology, Khartoum, Sudan

Using a 1-D model of polymer displacement, we analyze the exergy (maximum attainable work) balance of viscosifi ed water, e.g. with Arabic gum. The 1-D model shows the principle how such an analysis can be done. A comparison as to the displacement efficiency is made between three scenarios, i.e., (1) pure water injection, (2) constant polymer viscosifi ed water injection and (3) polymer slug ...

Coupled Models of Lithospheric Flexure and Magma Chamber Pressurization at Large Volcanoes on Venus

G. Galgana[1], P. McGovern[2], and E. Grosfils[2]

[1]Lunar and Planetary Institute, Houston, Texas, USA
[2]Pomona College, Claremont, California, USA

We present an implementation of the Structural Mechanics module of COMSOL Multiphysics to model the state of stress associated with the emplacement of large volcanic edifices on the surface of a planet. These finite element models capture two essential physical processes: (1) Elastic flexure of the lithosphere beneath the edifice load, and (2) Pressurization of a magma-filled chamber that serves ...

COMSOL Multiphysics, TOUGHREACT and Numerrin Comparison in Some Modelling Tasks of Spent Nuclear Fuel Disposal

A. Itälä[1], V-M. Pulkkanen[1], M. Laitinen[2], M. Tanhua-Tyrkkö[1], and M. Olin[1]
[1]VTT Technical Research Centre of Finland, Espoo, Finland
[2]Numerola Oy, Jyväskylä, Finland

Bentonite clay is used as a protecting barrier around both the copper capsules in deposition holes and in deposition tunnels in the KBS-3 final disposal concept for spent nuclear fuel. The performance of these bentonite barriers will be investigated both experimentally and by modelling. Both approaches are needed, because for example the time span in question (hundred thousand years or even ...

Radionuclide Transport Through Different Routes Near a Deposition Hole for Spent Nuclear Fuel

V-M.S. Pulkkanen[1]

[1]VTT, Technical Research Centre of Finland, Espoo, Finland

Radionuclide transport modeling is a part of the research concerning geological disposal of spent nuclear fuel. Typically, the transport models near a single deposition hole focus on the reactions of nuclides, while the model geometry and the flow of groundwater are often simplified. In this paper, instead, a radionuclide transport model in a detailed 3D geometry with no reactions is introduced. ...

Elasto-Plastic FEM Models Explain the Emplacement of Shallow Magma Intrusions in Volcanic Complexes

A. Bistacchi[1]
[1]Università degli Studi di Milano Bicocca, Milano, Italy

We present numerical models and field data that aid understanding of volcano-tectonic processes related to the propagation of inclined sheets and dykes under a stress field resulting from the inflation of a shallow magma chamber. Structural field data from the classical Cuillins cone-sheet complex (Isle of Skye) show that sheets have a constant average dip angle (45°), with pure dilational or ...

Safe Storage Parameters During CO2 Injection Using Coupled Reservoir-Geomechanical Analysis

T.I. Bjørnarå[1], E. Aker[1], and E. Skurtveit[1]
[1]NGI, Oslo, Norway

Safe short term storage of CO2 depends mainly on structural and solubility trapping. On longer term, mineral trapping is also contributing to the trapping of CO2. To be able to investigate the importance of these different storage mechanisms, a finite element model for simulation of CO2 injection has been developed in COMSOL Multiphysics®. The model describes and solves for two-phase flow ...

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 ...

Non Linear Mechanical and Poromechanical Analyses: Comparison with Analytical Solutions

M. Souley, and A. Thoraval
INERIS
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 ...

Application of Numerical Simulation in Geotechnical Engineering

Dr. Meen-Wah Gui[1]
[1]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.

Diverse Models for Graphite Brick Deformation and Stress State in UK AGR Nuclear Reactors

J. Burrow [1], A. Bond [1],
[1] Quintessa Ltd, United Kingdom

The UK Advanced Gas-cooled Reactor fleet, operated by EDF Energy, utilize a graphite core consisting of a lattice of around 3000 annular bricks. Due to irradiation, oxidation and thermal effects, the bricks deform and loose mass as they age. Of key concern is the late-life behavior of the bricks, in particular the predicted time at which brick shrinkage reverses into expansion, generating large ...