Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Self-Consistent Modeling of Thin Conducting Wires and Their Interaction with the Surrounding Electromagnetic Field

G. Eriksson[1]
[1]ABB AB, Corporate Research, Västerås, Sweden

It is demonstrated how the RF Module of COMSOL Multiphysics® can be used to approximately model thin conducting wires or cables and how they interact with a surrounding electromagnetic field. Despite being non-stringent the method can reasonably well predict currents induced by an applied electromagnetic field in wires, and networks of wires, as well as fields radiated from current-carrying ...

Design of an Electrodynamic Levitation System with COMSOL Multiphysics® Software - new

H. P. Ferreira[1], A. Endalecio[1], E. Rodriguez[1], R. M. Stephan[1]
[1]Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil

Levitation has found important applications in several areas of engineering, from microgravity to transportation systems. Electrodynamic levitation consists of the interaction of a varying in time magnetic field – provided by an alternating voltage supplying a coil or a moving permanent magnet. The main applications of this technique are MagLev trains and magnetic bearings. The electrodynamic ...

Creep Deformation Behavior of Heating Filaments in High Temperature Applications

B. Valentini [1],
[1] Plansee SE, Reutte, Austria

Resistive heating filaments used in high temperature applications at 2000°C and above are often made of refractory metals. The lifetime of such filaments is mainly limited by creep deformations which can in the worst case lead to a short circuit between filaments and other furnace components. With the aid of COMSOL Multiphysics software, the time-dependent creep deformation behavior of a heater ...

Modelling of a Differential Sensor in Eddy Current Non-destructive Evaluation

A. Rosell[1], and G. Persson[2]
[1]Volvo Aero Corporation, Trollhättan, Sweden
[2]Chalmers University of Technology, Göteborg, Sweden

Interaction between the probe and a defect in eddy current non-destructive evaluation is studied. Evaluation of sensor signal response is the basis for the calculation. In this work a differential sensor is considered and the problem regarded here is problem 8 from the testing of electromagnetic analysis methods (TEAM) workshops. The truncation, referring to the position of the outer ...

CAE-Based Design and Optimization of a Plasma Reactor for Hydrocarbon Processing

C. Soares [1], F. A. Cassini [1], N. Padoin [1],
[1] Universidade Federal de Santa Catarina, Florianópolis, SC, Brasil

Plasma reactors can be applied to the conversion of waste, biomass and fuels to synthesis gas (mixture of hydrogen and carbon dioxide) with efficiencies as higher as 90-95% and low energy demand, depending on the design optimization. In this work, a multi-step approach was applied to the investigation of the main physics involved in a rotating gliding arc (RGA) discharge reactor. COMSOL ...

Calibration of MHD Flow Meter using COMSOL Multiphysics

S. Sahu[1], R. P .Bhattachryay[1], E. R. Kumar[1]
[1]Institute for Plasma Research, Bhat, Gandhinagar, Gujarat, India.

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 linear dependency on flow velocity; can be used for flow velocity estimation. In case of conducting conduit the emf can be measured at the conduit wall. The main ...

2D Simulation of Cardiac Tissue - new

S. Esfahani[1]
[1]University of South Florida, Tampa, FL, USA

A two-dimensional atrial tissue model has been constructed in COMSOL Multiphysics® software to study the propagation of action potential and electrograms. The model presents the atrial electrograms recorded with a mapping catheter. A 2D atrial tissue model is simulated using the Courtemanche et al. cell model equations. PDE in coefficient form was used in COMSOL Multiphysics® to reproduce the ...

Electromagnetic Characteristics of Superconducting Coils Exposed to Travelling Magnetic Fields

Tianyong Gong [1],
[1] Southwest Jiaotong University, Chengdu, China

Two-generation superconducting coils carrying large current in alternating magnetic fields is very common in electrical applications such as HTS linear motor. So it is meaningful to study the characteristics of coated superconductors in the presence of travelling magnetic field. In this paper, by using the finite element simulation software COMSOL Multiphysics® software, the characteristics of ...

Dynamic Simulation of Magnetorheological Fluid Using COMSOL Multiphysics® Software

J. Thanikachalam[1], P. Nagaraj [1],
[1] Mepco Schlenk Engineering College, Sivakasi , India.

The present work deals with dynamic simulation of magnetic particles present in the carrier fluid when subjected to external magnetic field. Magneto rheological fluid comes under classification of smart materials, which contain pure CI iron particles, silicon oil as carrier fluid and additives. The yield stress of the magneto rheological fluid can be controlled by varying the external magnetic ...

Simulation Analysis of Electromagnetic Compatibility (EMC) of Enclosures

A. Eder [1], D. Hofinger [1], G. Ritzberger [1]
[1]Fronius International GmbH, Research & Development, Wels-Thalheim, Austria

The paper on EMC Simulation Analysis of Enclosures demonstrates a simulation method to analyze the shielding effectiveness of enclosures. From the early development stage on it is possible to analyze the effect of electromagnetic waves on shielding panels. Different types of openings have been virtually measured in a test chamber. Therefore the full Maxwell equations have been solved in the ...