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.

Heat Output From Space Heating Radiator With Add-On-Fan Blowers

P-O. Johansson, and J. Wollerstrand
Lund University, Lund, Sweden

In a hydronic space heating system the heat output arises from natural convection and radiation from the radiators. In order to increase the heat output, without replacing the radiators with larger ones, or increasing the temperature level, the radiator can be equipped with add-onfan blowers. In the latter case, the heat output from the radiator will increase due to increased convection. This ...

Numerical Simulation of Magnetic Drug Targeting with Flow – Structural Interaction in an Arterial Branching Region of Interest

A. Morega, A. Dobre, and M. Morega
University Politehnica of Bucharest, Bucharest, Romania

We report a numerical study on the blood – magnetic carrier aggregate flow in an external magnetic field, for applications such as magnetic drug targeting. The arterial system morphology is complex and patient-related therefore more realistic numerical simulations request medical image-based reconstruction to generate computational domains. Simpleware package is used to generate the ...

Two-Dimensional FEM Analysis Of Brillouin Gain Spectra In Acoustic Guiding And Acoustic Antiguiding Single Mode Optical Fibers

Y.S. Mamdem[4], X. Pheron[2], F.Taillade[3], Y. Jaouën[4], R. Gabet[4], V. Lanticq[1,3], G. Moreau[1], A. Boukenter[5], Y. Ouerdane[5], S. Lesoille[3], and J. Bertrand[2]
[1]EDF R&D, Chatou, France
[2]ANDRA, Chatenay-Malabry, France
[3]LCPC, Paris, France
[4]Telecom ParisTech, Paris, France
[5]Laboratoire Hubert Curien, Saint-Etienne, France

We present a full modal -analysis of optical and acoustic properties based on two-dimensional finite-element method (2D-FEM) for Brillouin Gain spectrum (BGS) determination in optical fibers with COMSOL. This model enables us to predict precisely the BGS of any kind of silica fiber knowing well the geometry of doping composition. The results of numerical modeling have shown good agreement in ...

Robust and Reliability-based Design Optimization of Electromagnetic Actuators Using Heterogeneous Modeling with COMSOL Multiphysics and Dynamic Network Models

H. Neubert[1], A. Kamusella[1], and T-Q. Pham[2]
[1]Technische Universität Dresden, Germany
[2]OptiY e. K. Aschaffenburg, Germany

For an exemplary electromagnetic actuator used to drive a Braille printer, a design optimization was performed. The optimization involves stochastic variables and comprises nominal optimization, robustness analysis and robust design optimization. A heterogeneous model simulates the static and the dynamic behavior of the actuator and its non-linear load. It consists of a network model in ...

A Finite Element Model For Structural And Aeroelastic Analysis Of Rotary Wings With Advanced Blade Geometry

E. Piccione, G. Bernardini, and M. Gennaretti
University Roma Tre Dept. of Mechanical and Industrial Engineering, Via della Vasca Navale, Rome, Italy

Objective of this paper is the development and implementation of a finite element model, in a COMSOL Multiphysics context, for the prediction of the aeroelastic behavior of rotor blades. In particular, the attention is focused on new generation blades characterized by curved elastic axes, with the presence of tip sweep and anhedral angles. The blade structural model implemented is based on ...

Structural Analysis: Going Beyond Standard Load Cases

I. Kjelberg
CSEM sa, Switzerland

Dr. Ivar Kjelberg is Senior Project Manager for Mechatronics in the Systems Engineering Division of CSEM SA in Neuchâtel, Switzerland. He obtained the diploma as \"Ingénieur Physicien\" from the Ecole Polytechnique Fédéreale EPFL in Lausanne, Switzerland in 1979, and a PhD at the local Institute for Plasma Physics (CRPP-EPFL) in 1986. He started his career at CSEM in 1988 and has since occupied ...

Ultrasound Piezo-Disk Transducer Model For Material Parameter Optimization

L. Spicci, and M. Cati
Esaote SpA, Florence, Italy

The technology involved in high performance ultrasound imaging probes needs a reliable model to help in new projects development and performance simulations. To achieve a useful model, it is necessary to use correct values for all material parameters involved in the electro-acoustical performances of the piezoelectric material, but unfortunately some of these parameters are known only with high ...

Transient Finite Element Analysis of a SPICE-coupled Transformer with COMSOL Multiphysics

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

The operation of transformers is characterised by strong dynamic interactions between the magnetic system and the electric circuits that are connected to the primary and econdary windings. Transient finite element modelling (FEM) of the transformer with coupling to SPICE circuit models containing the electrical sources and loads is a powerful means for analysis and design. This paper describes ...

Finite Element Analysis Of Permeation Tests On Articular Cartilage Under Different Testing Conditions Using COMSOL Multiphysics

G. Spatafora[1], and F. Boschetti[1][2]
[1]Structural Engineering Department, Politecnico di Milano, Milan, Italy
[2]IRCCS Istituto Ortopedico Galeazzi, Milan, Italy

Articular cartilage is composed by a charged solid matrix (proteoglycan and collagen fibres) and an interstitial fluid phase. The permeability of articular cartilage is a function of compression load applied on the tissue, the solid matrix underwent a compaction that decreased its value for increasing deformation. The study of the permeability is very useful to understand the onset and ...

A Multiphase Model to Analyze Transport Phenomena In Convective Drying

S. Curcio, and M. Aversa
Department of Engineering Modelling, University of Calabria, Rende, Italy

In the modern food industry one of the most important problems to face is to preserve products from deterioration: a widely used solution is the convective foods drying. Drying is based on a simultaneous transfer of both heat and water that takes place when dry and warm air flows around a moist and cold food sample. The aim of the present work is the development a fundamental multiphase approach ...