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Numerical Model for Leaching and Transporting Behavior of Radiocesium in MSW Landfill

H. Ishimori[1], K. Endo[2], H. Sakanakura[2], M. Yamada[2], M. Osako[2]
[1]Ritsumeikan University, Kusatsu, Shiga, Japan
[2]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 ...

Assessment of Spatial Variably Saturated Flow by Irrigation Moisture Sensors in 2-Dimensions using the COMSOL Multiphysics 4.1

A. Boluwade, and C. A. Madramootoo
Bioresources Engineering, McGill University
Ste. Anne De Bellevue, QC
Canada

This paper reports on the application of COMSOL Multiphysics’ Richard\'s Equation Interface in the assessment of irrigation moisture sensors for ...

Solution of Poroelastic Equations with Different Base Variables Using Equation-based Modeling

M. H. Akanda [1], Y. Cao [1], A. J. Meir [1],
[1] Department of Mathematics & Statistics, Auburn University, Auburn, AL, USA

Poroelasticity equations describe the interaction between fluid flow and solids deformation within a porous medium. Modeling of poroelasticity is ...

Analytical Solution for the Steady Poroelastic State under Influence of Gravity

E. Holzbecher [1],
[1] German University of Technology in Oman, Muscat, Oman

Studies of poroelastic systems increasingly utilize numerical modeling. Especially for geotechnical applications models are set up as a tool to ...

COMSOL Modeling of a Submarine Geothermal Chimney

M. Suárez [1], and F. Samaniego [2]
[1]Faculty of Sciences, Michoacán University (UMSNH), Morelia, Michoacan, Mexico
[2]Faculty of Engineering Postgrade Studies Division, National University of Mexico (UNAM), Mexico City, Mexico

New geothermal energy sources hold promise for the future. Deep submarine geothermal energy related to hydrothermal vents is emerging in many places ...

Finite-Element Evaluation of Thermal Response Tests Performed on U-Tube Borehole Heat Exchangers

E. Zanchini, and T. Terlizzese
[1]Dipartimento di Ingegneria Energetica, Nucleare e del Controllo Ambientale, Università di Bologna, Bologna, Italy

The results of two thermal response tests recently performed on two vertical borehole heat exchangers (BHEs) are presented. The BHEs have the same cross section and a depth of 100 m and 120 m respectively. The evaluation of the thermal properties of the ground and grout are performed by a finite-element simulation method, developed through the software package COMSOL Multiphysics 3.4.

Numerical Simulations of Radionuclide Transport through Clay and Confining Units in a Geological Repository using COMSOL

J. Hansmann[1], M. L. Sentis[1], B. J. Graupner[1], A.-K. Leuz[1], C. Belardinelli[2]
[1]Swiss Federal Nuclear Safety Inspectorate (ENSI), Brugg, Switzerland
[2]Kantonsschule Solothurn, Solothurn, Switzerland

Introduction: The sectoral plan that defines the procedure and criteria of site selection for deep geological repositories for all categories of waste ...

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 ...

Numerically Generated g-functions for Ground Coupled Heat Pump Applications

J. Acuna[1], M. Fossa[2], P. Monzó[1]
[1]KTH Energy Technology, Stockholm, Sweden
[2]Dime, University of Genova, Genova, Italy

Ground-coupled heat pumps (GCHP) are successfully installed since at about 20 years in many countries to fulfill space conditioning requirements in ...

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 ...