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.

Simulation of Current Density for Electroplating on Silicon Using a Hull Cell

F. Lima[1], U. Mescheder[1], H. Reinecke[3]
[1]Hochschule Furtwangen University, Furtwangen, Baden-Wuerttemberg, Germany
[3]Institut für Mikrosystemtechnik, Freiburg im Breisgau, Baden-Wuerttemberg, Germany

Electrodeposition has a major advantage over other methods of thin film deposition. It allows deposition at atmospheric pressure and room temperature, requiring inexpensive equipment. However, there are several parameters which can influence an electroplated metal layer quality. The current density distribution is taken into consideration. The Hull cell is an electrodeposition tank with a ...

FEM Based Design and Simulation Tool for MRI Birdcage Coils Including Eigenfrequency Analysis

N. Gurler[1], Y. Ziya Ider[1]
[1]Department of Electrical and Electronics Engineering, Bilkent University, Ankara, Turkey

Designing a Radio Frequency (RF) birdcage coil used in Magnetic Resonance Imaging (MRI) at high frequencies where the wavelength is comparable with the coil dimensions is a challenging task. Before construction of the coil, not only calculating the capacitance value which is necessary for the coil to resonate at the desired frequency but also geometrically modeling the coil in a 3D simulation ...

Computational Modeling and Simulation of the Human Duodenum

B. Hari[1], S. Bakalis[1], P. Fryer[1]
[1]The University of Birmingham, School of Chemical Engineering, Edgbaston, Birmingham, United Kingdom

Worldwide attention in the computational modeling and simulation of the human intestine is increasing in order to help understand its complex behavior and improve health. Computational fluid dynamics is an essential tool to understand the mechanics and transport phenomena of the human intestine, thereby advancing the diagnosis and treatment of gastrointestinal related diseases. The aim of this ...

Thermal Simulations of a LED Light Using COMSOL Multiphysics

M. Maaspuro[1]
[1]University of Turku, Turku, FInland

An experimental LED light composed of a multi-chip LED-module, a LED driver and an efficient heat sink, was investigated using COMSOL Multiphysics software and the Heat Transfer Module. In an LED light heat is mainly generated in the LEDs but some amount of heat is generated also in the LED driver. The main target of the simulations was to resolve the junction temperatures of LEDs, the most ...

Ampacity Simulation of a High Voltage Cable Used in Offshore Wind Farms

E. Pelster[1]
[1]Wenger Engineering, Ulm, Germany

The ampacity of a cable depends on the cross section of its conductor. When selecting a cable design for a specific application it is of interest to choose the lowest possible conductor cross section in order to reduce material costs. Therefore an exact calculation of the ampacity is necessary (it is usually limited by the thermal resistance of the insulating cable materials). Commonly the ...

Ammonia Removal From Water by a Liquid-Liquid Membrane Contactor Under a Closed Loop Regime

E. Licon[1], S. Casas[1], A. Alcaraz[1], J.L. Cortina[1], C. Valderrama[1]
[1]Universitat Politécnica de Catalunya, Barcelona, Spain

Ammonia separation from water by membrane contactor was simulated on transient state and compared with experimental data. Aqueous low concentrated solution of ammonium with high pH has been pumped inside the hydrophobic hollow fibers, acid solution in the outside part. The system is in closed loop configuration. In order to simulate the separation process, equations were developed considering ...

Numerical Aspects of the Implementation of Artificial Boundary Conditions for Laminar Fluid-Structure Interactions

C. Boeckle[1], P. Wittwer[1]
[1]University of Geneva, Geneva, Switzerland

We discuss the implementation of artificial boundary conditions for stationary Navier-Stokes flows past bodies in the half-plane, for a range of low Reynolds numbers. When truncating the half-plane to a finite domain for numerical purposes, artificial boundaries appear. We present an explicit Dirichlet condition for the velocity at these boundaries in terms of an asymptotic expansion for the ...

Simulation of Impact Damage in a Composite Plate and Its Detection

V. Pavelko[1], I. Pavelko[1], M. Smolyaninovs[1], H. Pffeifer[2], M. Wevers[2]
[1]Riga Technical University, Riga, Latvia
[2]Catholic University Leuven, Leuven, Belgium

A problem of damage prediction in aircraft structure and its non-destructive evaluation is very important for aircraft structural health assessment. The analysis of the features of direct impact of thin-walled laminate component of aircraft was performed by COMSOL Multiphysics software. Mainly the GFRC and CFRC laminates were selected in form either thin separate plate or sandwich structure. The ...

Multiphysics Process Simulation of Static Magnetic Fields in High Power Laser Beam Welding of Aluminum

M. Bachmann[1], V. Avilov[1], A. Gumenyuk[1], M. Rethmeier[1]
[1]BAM Federal Institute for Materials Research and Testing, Berlin, Germany

The article deals with the application of the Hartmann effect in high power laser beam welding of aluminum. The movement of liquid metal in a magnetic field causes electric currents which build a Lorentz force that decelerates the original flow. The numerical model calculates the influence of a steady magnetic field on partial penetration keyhole laser beam welding of aluminum. Three-dimensional ...

Highly Concentrated Solar Radiation Measurement by Means of an Inverse Method

L. Mongibello[1], N. Bianco[2], R. Fucci[1], F. Moscariello[2]
[1]ENEA - Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Portici, Italy
[2]DETEC - Università degli Studi di Napoli Federico II, Napoli, Italy

This work focuses on the numerical analysis conducted on the prototype sensor for the measurement of highly concentrated radiative heat fluxes, based on an inverse heat transfer method, realized at the ENEA Portici Research Center in collaboration with the DETEC department of the University of Naples Federico II. The estimates of highly concentrated radiative heat fluxes on the target surface of ...

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