Papers & Presentations

Showing results 1 - 20 of 192

AC/DC Systems

Modeling Magnetic Configurations for Improved Separations of Magnetic and Non-Magnetic Materials Modeling Magnetic Configurations for Improved Separations of Magnetic and Non-Magnetic Materials

Magnetic separation of magnetic liquid phases/particles from non-magnetic liquid phases/particles are needed for applications such as cleaning up oil spills by separating oil and water liquid phases or separating magnetic materials from...
COMSOL Conference 2012, Boston
S. Khushrushahi1 , T.A. Hatton1 , M. Zahn1
1 Massachusetts Institute of Technology, Cambridge, MA, USA

Computation of Capacitance, Inductance, and Potential Distribution of Integrated-Circuit Interconnects for Unshielded Four Conductors with Three Levels Systems     Computation of Capacitance, Inductance, and Potential Distribution of Integrated-Circuit Interconnects for Unshielded Four Conductors with Three Levels Systems

In this paper an attempt has been made to design and analyze integrated circuit interconnects for unshielded four conductors with three levels system using Finite Element Method (FEM). The computational and simulation work has been...
COMSOL Conference 2012, Boston
S.M. Musa1 , M.N.O. Sadiku1 , J.D. Oliver1
1 Prairie View A&M University, Prairie View, TX, USA

COMSOL Aided Design of an Extraction Pipe for the Electron Beam from a Plasma Focus Device COMSOL Aided Design of an Extraction Pipe for the Electron Beam from a Plasma Focus Device

The electron beam emitted backward by Plasma Focus devices is being investigated as a radiation source for IORT (Intra-Operative Radiation Therapy) applications. A Plasma Focus device is being developed to this aim. The electron beam is...
COMSOL Conference 2012, Milan
M. Valentinuzzi1 , E. Ceccolini1 , D. Mostacci1 , M. Sumini1 , F. Rocchi2
1 Montecuccolino Nuclear Engineering Laboratory, University of Bologna, Bologna, Italy
2 UTFISSM-PRONOC, ENEA, Bologna, Italy

Model of an Interdigitated Electrodes System for Cell Counting Based on Impedance Spectroscopy Model of an Interdigitated Electrodes System for Cell Counting Based on Impedance Spectroscopy

A model of a cell counter sensor based on Impedance Spectroscopy (IS) has been implemented in COMSOL Multiphysics. The cell counter is a silicon-based microdevice consisting in 3D electrodes placed in a wide microchannel: cells flow in...
COMSOL Conference 2012, Milan
E. Bianchi1 2 , F. Bellati1 , E. Rollo2 , G. Dubini1 , C. Guiducci2
1 Politecnico di Milano, LaBS, Laboratory of Biological Structure Mechanics, Milano, Italy
2 Swiss Federal Institute of Technology (EPFL), Laboratory of Life Sciences Electronics - Swiss Up Chair, Lausanne, Switzerland

Coupled Electric-Thermal-Fluid Analysis of High Voltage Bushing Coupled Electric-Thermal-Fluid Analysis of High Voltage Bushing

Modern power transmission systems are in general designed to operate at high voltages in order to reduce resistive losses generated by high currents. This, however, tends to increase the risk for dielectric breakdown or flashovers if the...
COMSOL Conference 2012, Milan
G. Eriksson1
1 ABB, Corporate Research, Västerås, Sweden

Contactless Power and Data Transfer for Multiple Nonlinear Loads Contactless Power and Data Transfer for Multiple Nonlinear Loads

For the design of an inductive power and data transfer electromagnetic calculation are carried out. A transfer system is considered for loads that are distributed across some distances. For example, such loads are adjustable speed drives...
COMSOL Conference 2012, Boston
H.P. Schmidt 1 , U. Vogl1
1 UAS HAW Amberg-Weiden, Amberg, Germany

Calibration of MHD Flow Meter using COMSOL Multiphysics Calibration of MHD Flow Meter using COMSOL Multiphysics

There is limited option for non-intrusive flow measurement of liquid metals at high temperature. Liquid metal flowing in a conduit along with the transverse magnetic field induces emf in the liquid metal. The emf developed; which has...
COMSOL Conference 2012, Bangalore
S. Sahu1 , R. P .Bhattachryay1 , E. R. Kumar1
1 Institute for Plasma Research, Bhat, Gandhinagar, Gujarat, India.

Modeling, Simulation, and Control of Dual Electromagnet Active Magnetic Levitation Modeling, Simulation, and Control of Dual Electromagnet Active Magnetic Levitation

Introduction: The dual electromagnet configuration of Active Magnetic Levitation system (AML) where the electromagnets are locate opposite to each other, constitutes and single axis of the Active Magnetic Bearing. The same configuration...
COMSOL Conference 2012, Milan
A.K. Pi?at1
1 AGH University of Science and Technology, Kraków, Poland

Nonstandard High Voltage Electric Insulation Models Nonstandard High Voltage Electric Insulation Models

The design of modern electric insulation devices for medium and high voltage (HV) applications requires computational work that goes beyond solving just a Laplace equation for the electric potential, and limiting the electric field below...
COMSOL Conference 2012, Milan
T. Christen1
1 ABB, Corporate Research, Zürich, Switzerland

Numerical Modeling of a MEMS Sensor with Planar Coil for Magnetic Flux Density Measurements Numerical Modeling of a MEMS Sensor with Planar Coil for Magnetic Flux Density Measurements

The silicon cantilever with the planar coil was applied to the magnetic flux density measurements. The influence of shape and dimensions of planar coil on magnetic energy density was described. In cause of magnetic anisotropy of analyzed...
COMSOL Conference 2012, Milan
J. Golebiowski1 , S. Milcarz1
1 Department of Semiconductor and Optoelectronics Devices, Technical University of Lodz, Lodz, Poland

Electromagnetic Parameters Extraction for Integrated-Circuit Interconnects for Open Three Conductors with Two Levels Systems Electromagnetic Parameters Extraction for Integrated-Circuit Interconnects for Open Three Conductors with Two Levels Systems

The accurate estimate of values of electromagnetic parameters are essential to determine the final circuit speeds and functionality for designing of high-performance integrated circuits and integrated circuits packaging. In this paper, a...
COMSOL Conference 2012, Boston
S.M. Musa1 , M.N.O. Sadiku1 , J.D. Oliver1
1 Prairie View A&M University, Prairie View, TX, USA

Assessing COMSOL Performances on Typical Problems Faced by Turbo-Generator Manufacturers Assessing COMSOL Performances on Typical Problems Faced by Turbo-Generator Manufacturers

Multiphysics processes manifest in turbo-generators due to the leakage electromagnetic field of the stator and rotor end winding and its associated effects at machine frontal end. Such processes are a compilation of coupled phenomena...
COMSOL Conference 2012, Milan
E.A. Badea1 , J. Oesterheld1 , S. Friedel2 , M. Olsson3
1 Alstom Schweiz, Birr, Switzerland
2 COMSOL, Zürich, Switzerland
3 COMSOL, Stockholm, Sweden

SWRO (Desalination) Biofilm Remediation Technology Utilizing Centrifugal Micro-Fluids SWRO (Desalination) Biofilm Remediation Technology Utilizing Centrifugal Micro-Fluids

Water-and-energy supply is a global issue of paramount importance. The demand for safe potable water is quickly exceeding the limits of natural regional water resources. Like oil, water is a finite resource; unlike oil, however, water has...
COMSOL Conference 2012, Boston
E.M. Glenn1
1 University of California, Irvine, CA, USA

Superconducting RF Cavity Performance Degradation after Quenching in Static Magnetic Field Superconducting RF Cavity Performance Degradation after Quenching in Static Magnetic Field

Performance degradation of a superconducting RF cavity after quenching in an external magnetic field was calculated using COMSOL. This degradation is due to the increased resistance of a superconducting surface with trapped magnetic flux....
COMSOL Conference 2012, Boston
I. Terechkine1 , T. Khabiboulline1 , D. Sergatskov1
1 Fermi National Accelerator Laboratory, Batavia, IL, USA

Methodology for Calculation Scattering Parameters in a Transmission-Line Transducer Methodology for Calculation Scattering Parameters in a Transmission-Line Transducer

Transmission-line transducers are used for the measurement of absorption and reflection of different materials, such as: liquids, granular medium, and ground. A simplified methodology for calculation of scattering parameters of such...
COMSOL Conference 2012, Milan
E.J.P. Santos1 , L.B.M. Silva1
1 Laboratory for Devices and Nanostructures, Departamento de Eletrônica e Sistemas, Universidade Federal de Pernambuco, Várzea, Recife, PE, Brasil

Magnetotelluric Response Distortion Over Rugged Topography Magnetotelluric Response Distortion Over Rugged Topography

Topographic effects on magnetotelluric responses may be severe on rugged terrains. Finite elements simulation is a valuable tool to quantify this effect, due to its capability to match real morphologies. To do the estimate of the...
COMSOL Conference 2012, Milan
D. Rizzello1 , P. Canepa1 , E. Armadillo1
1 DISTAV - University of Genova, Genova, Italy

FEM Modeling of Electric Field and Potential Distributions of MV XLPE Cables Containing Void Defect FEM Modeling of Electric Field and Potential Distributions of MV XLPE Cables Containing Void Defect

Introduction: Failure in cable insulation is generally preceded by a degradation phase that may last several years. A significant cause of cable system failures is the breakdown of electrical insulation between the electrodes. The...
COMSOL Conference 2012, Milan
M. Alsharif1 , P. Wallace2 , D. Hepburn2 , C. Zhou2
1 Department of Physics, Faculty of Arts, Sebha University, Sebha, Libya
2 School of Engineering & Computing, Glasgow Caledonian University, Glasgow, United Kingdom

Finite Element Simulation of Induction Heating of a Tubular Geometry Finite Element Simulation of Induction Heating of a Tubular Geometry

In Pressurised Heavy Water Reactors (PHWRs), the fuel bundles are located inside horizontal pressure tubes made of Zr 2.5 wt% Nb alloy. During reactor operation, pressure tubes undergo corrosion reaction with the heavy water coolant...
COMSOL Conference 2012, Bangalore
K. Madhusoodanan1 , J. N. Kayal1 , P. K. Vijayan1
1 Bhabha Atomic Research Centre, Trombay, Mumbai, India

Electric Field Density Distribution for Cochlear Implant Electrodes Electric Field Density Distribution for Cochlear Implant Electrodes

Cochlear Implants are implantable devices which bypasses the non-functional inner ear and directly stimulates the hearing nerve with electric currents thus enabling deaf people to experience sound again. Implant electrode array design is...
COMSOL Conference 2012, Milan
N.S. Lawand1 , J. van Driel2 , P.J. French2
1 Electronic Instrumentation Laboratory (EILab), Faculty of Electrical Engineering, Mathematics and Computer Science (EEMCS), Delft University of Technology, Delft, The Netherlands
2 Delft University of Technology, Delft, The Netherlands

Electro Thermal Performance Prediction of Radio Frequency Ablation System for Efficient Cancer Treatment Electro Thermal Performance Prediction of Radio Frequency Ablation System for Efficient Cancer Treatment

Cancer causes significant human deaths. Radiofrequency ablation is an encouraging procedure for cancer treatment. The objective is to demonstrate the multiphysics simulation methodology. This paper summarizes the problem , governing...
COMSOL Conference 2012, Bangalore
C. Thiagarajan1 , V. Gnanasekar2
1 ATOA Scientific Technologies Pvt Ltd, Whitefield, Bangalore, Karnataka, India.
2 Perfint Healthcare Pvt. Ltd, T.Nagar, Chennai, India.


1 2 3 4 5 6 7 8 9 10