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Numerical Analysis of Propeller-induced Low-frequency Modulations in Underwater Electric Potential Signatures of Naval Vessels in the Context of Corrosion Protection Systems

D. Schaefer[1], J. Doose[2], A. Rennings[1], and D. Erni[1]
[1]General and Theoretical Electrical Engineering (ATE), Faculty of Engineering, University of Duisburg-Essen, Duisburg, Germany
[2]Technical Center for Ships and Naval Weapons (WTD 71), Bundeswehr, Eckernförde, Germany

Since October 2009 the laboratory of ATE has carried out collaborative research with the WTD 71 that aims for prediction, reduction and optimization of ...

Multiphysics Modeling of a Gas Bubble Expansion

B. Chinè [1], and M. Monno[2]
[1]Laboratorio MUSP, Macchine Utensili e Sistemi di Produzione, Piacenza, Italy and Instituto Tecnologico de Costa Rica, Cartago, Costa Rica
[2]Politecnico di Milano, Dipartimento di Meccanica, Milano, Italy

Modeling and simulation softwares are very useful tools when we have to analyse and understand the different phenomena occurring during metal foams ...

Simulation and Verification of Coupled Heat and Moisture Modelling

N. Williams Portal[1], M. van Aarle[2], and J. van Schijndel[2]
[1]Department of Civil and Environmental Engineering, Chalmers University of Technology, SE-412 96 Göteborg, Sweden
[2]Department of Architecture, Building and Planning, Technical University of Eindhoven, Eindhoven, The Netherlands

This paper includes the implementation and comparison of two types of moisture potentials for the combined transport: the natural logarithmic of the ...

Transient Electromagnetic-Thermal FE-Model of a SPICE-Coupled Transformer Including Eddy Currents with COMSOL Multiphysics 4.2

H. Neubert[1], R. Disselnkötter[2], and T. Bödrich[1]
[1]Technische Universität Dresden, Institute of Electromechanical and Electronic Design, Dresden, Germany
[2]ABB AG, Forschungszentrum Deutschland, Ladenburg, Germany

Current transformers are used to measure currents in power grid systems. They are characterized by strong interactions between external electrical ...

Experimental and Numerical Study of Microbial Improved Oil Recovery in a Pore Scale Model by using COMSOL

M. Shabani Afrapoli, L. Shidong, S. Alipour , and O. Torsaeter
Department of Petroleum Engineering and Applied Geophysics
NTNU
Trondheim, Norway

A number of visualization experiments are carried out at the laboratory temperature with oil, brine and bacteria suspension for evaluating the ...

Optimization of a Multiphysic Device – A Comparison of a Finite-Element- and a Equation-based Simulation

M. Jungwirth, and B. Hansbauer
University of Applied Sciences
Wels, Austria

To avoid overheating and malfunction of an electrical system it is necessary to optimize the power-loss of each component. The power dissipation mostly ...

Modeling of a Switchable Permanent Magnet Magnetic Flux Actuator

I. Dirba, and J. Kleperis
Institute of Solid State Physics of University of Latvia
Riga, Latvia

A simple magnetic circuit consisting of ferromagnetic core material, air gap, permanent magnets and current coils can be used to form magnetic ...

Multiphysics Design of ESS-Bilbao Linac Accelerating Cavities Using COMSOL

J. L. Munoz, and I. Rodriguez
ESS-Bilbao
Bilbao, Spain

A proton linac drives particles using the electric field of a high power RF standing wave in a resonant cavity. The design of these cavities involve ...

Simulation of Brine Reflux and Geothermal Circulation in Large Carbonate Platforms: An Attempt to Predict Dolomite Geo-Bodies

M. Pal, and C. Taberner
Shell International Exploration and Production B.V.
Rijswijk, The Netherlands

Significant volumes of the worlds proved reserves are in dolostone reservoirs. Scope for recovery and success/upside of new exploration plays depend on ...

Simulation and Verification of a Capacitive Proximity Sensor

T. Schlegl, and H. Zangl
Graz University of Technology
Graz, Austria

State of the art proximity sensors are most often based on optical or tactile methods. Although these sensor systems are widely used (e.g. clamping ...