Fracture-Matrix Flow Partitioning and Cross Flow: Numerical Modeling of Laboratory Fractured Core Flood
R. Sanaee, G.F. Oluyemi, M. Hossain, B.M. Oyeneyin
Robert Gordon University, Aberdeen, United Kingdom
The contrast between hydro-mechanical behavior of the rock matrix and fracture network systems results in flow partitioning between fracture and matrix systems which is affected by the In-situ stress regime. Fracture flow, Darcy law and free and porous media flow physics interfaces of COMSOL were used in simulating a fractured core flooding test to achieve a better understanding of flow ...
Georg-August Universität Göttingen, Göttingen, Germany
We examine the poroelastics mode, which couples hydraulics and mechanics by some basic benchmarks. For cases with analytical solutions we check the accuracy for changing meshes and calculate the convergence rate.
The Use of COMSOL Multiphysics® Software to Explore Flooding and Rising Dampness Problems Related to Cultural Heritage
H.L. Schellen , A.W.M. van Schijndel ,
 Eindhoven University of Technology, Eindhoven, Netherlands
In The Netherlands rising dampness problems due to flooding of rivers and high groundwater levels form an essential treat for monumental buildings and heritage. A number of cases exists where rising dampness problems lead to the deterioration of wall finishes but also of valuable wall paintings in churches and castles. To explore the problem and to look for solutions like drying regimes, ...
R. Caulk, J. McCartney, E. Ghazanfari
University of Vermont, Burlington, VT, USA
University of Colorado, Boulder, CO, USA
In this study, a model of in-situ geothermal energy piles was constructed using COMSOL Multiphysics® software. Geothermal energy piles serve two purposes, first to transfer building load into the subsurface, but also to extract thermal heat from surrounding soils. This is achieved using a heat pump coupled with embedded heat exchangers. As a result, a multiphysics problem is introduced - heat ...
O. Silva ,
 Amphos 21 Consulting S.L., Barcelona, Spain
Injection conditions of CO2 at the wellhead may play a major role on the flow behavior through the wellbore. The density and the injection rate reached at the bottomhole are key factors affecting the performance and efficiency of CO2 geological storage. In this work, a model of non-isothermal flow of CO2 in injection wells is developed using COMSOL Multiphysics® software and used to assess ...
Application of the Focused Impedance Method (FIM) to Determine the Volume of an Object within a Volume Conductor
M. A. Kadir, S. P. Ahmed, G. D. Al Quaderi, R. Rahman, K. Siddique-e Rabbani
Department of Biomedical Physics & Technology, University of Dhaka, Dhaka, Bangladesh
Department of Physics, Jahangirnagar University, Savar, Dhaka, Bangladesh
Department of Physics, University of Dhaka, Dhaka, Bangladesh
Focused Impedance Method (FIM), a new technique of electrical impedance measurement having high sensitivity in the central region, can sense the change in transfer impedance of an object embedded at a shallow depth within a volume conductor of unchanging background conductivity, using electrodes at the surface. This paper presents a new method for measuring the volume of such an embedded object ...
L. Cui , M. Fall ,
 University of Ottawa, Ottawa, ON, Canada
In underground mining operations, the mined-out spaces (called stopes) need to be backfilled to maintain the stability of surrounding rock mass and increase the ore recovery. Cemented paste backfill (CPB), a mixture of water, binder, and tailings, has been intensively utilized in underground mining operations to fill the stopes. After preparation, the fresh CPB is transported into stopes via ...
E. D. Skouras , A. N. Kalarakis , M. S. Valavanides , V. N. Burganos ,
 Foundation for Research and Technology, Hellas/Institute of Chemical Engineering Sciences, Patras, Greece
 Dept of Mechanical Engineering, TEI of Western Greece, Patras, Greece
 Dept of Civil Engineering, Applied Mechanics Laboratory, TEI of Athens, Athens, Greece
In general, macroscopic two-phase flow in porous media is a mixture of connected and disconnected oil flow. The latter is expressed as ganglion dynamics and drop traffic flow, patterns observed experimentally in pore network models [1,2] and real porous media [3,4]. This characteristic was adversely not taken into account in previous modeling approaches. The mechanistic model DeProF , ...
D. Malomo , V. Varano ,
 DICEA, University of Rome, Italy
 LAMS, University of Rome, Italy
The "Lithic Hypar" research is based on the mechanical analysis of an innovative reinforced stone's structure, architecturally designed by Prof. Fallacara, University of Bari (Italy): the headquarters entrance portal of the French company SNBR (Société Nouvelle Batiment Régional) located in Troyes (France), the realization of which is planned for October 2015. The main idea of this lithic ...
COMSOL Implementation for Upscaling of Two-Phase Immiscible Flows in Communicating Layered Reservoirs
X. Zhang, A. Shapiro, and E.H. Stenby
Center for Energy Resources Engineering, Technical University of Denmark, Lyngby, Denmark
Waterflooding is widely used in secondary oil recovery. The physics is described by the model of two-phase flow in porous media. The aim of the present work is to implement this model in COMSOL Multiphysics and to simulate the process of waterflooding. It is analyzed in two dimensions. We use layered reservoir in our study. The numerical implementation is validated, comparing with analytical ...