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.

Statistical Sensitivity Analysis of Li-ion Pouch Battery Cell Dimension and Design

A. Samba[1], N. Omar[2], H. Gualous[3], Y. Firouz[2], O. Capron[2], M. Abdel MonemO[2], J. Smekens[2], P. Van den Bossche[2], J. Van Mierlo[2]
[1]VUB ETEC, Brussel, Belgium and UCBN, LUSAC, Cherbourg, France
[2]VUB ETEC, Brussel, Belgium
[3]UCBN, LUSAC, Cherbourg, France

Multi-Scale and Multi-Dimensional (MSMD) modeling approaches have been proposed to simulate the thermal, electrical distributions and concentration behaviors of large size pouch cell. This approach is based on coupling of the energy balance with the Newman’s electrode model. Newman’s 1D electrochemical model is often used for small size batteries but not sufficient enough for large size where ...

Use of FEM in the Design of an HTS Insert Coil for a High Field NMR Magnet - new

E. Bosque[1]
[1]Applied Superconductivity Center, National High Magnetic Field Laboratory, Tallahassee, FL, USA

High temperature superconductors (HTS) allow larger current densities through coil wound electromagnets, which produce higher magnetic fields. A high field HTS insert demonstration magnet is being built with high field homogeneity (~1 ppm) for application in nuclear magnetic resonance (NMR). The HTS NMR system is inserted into the bore of an existing high field magnet. A compensating Helmholtz ...

Development of a Micro Ultrasonic Transducer - new

F. F. Dall'Agnol[1], A. C. F. de Mattos[1]
[1]Center for Information Technology Renato Archer (CTI), Campinas, SP, Brazil

We simulate a Capacitive Micromachined Ultrasound Transducer (CMUT) using COMSOL Multiphysics® software. The CMUT is an electromechanical system, therefore, we couple the physics of electrical and structural mechanics to describe its dynamics. We obtain the distributions of the electric field and the stress as a function of time. Finally, we derived the time evolution of the device for several ...

Computational Fluid Dynamics (CFD) Simulation of Multiphase Flow in Biogas Digester

V. S. Kshirsagar[1], P. M. Pawar[1]
[1]SVERI's College of Engineering, Pandharpur, Maharashtra, India

Effective suspension and settling are critical for controlling biomass retention in a biogas digester. This paper developed a Computational Fluid Dynamics (CFD) model to simulate the hydrodynamic characteristics of multiphase flow in biogas digester. This is carried out by using COMSOL Multiphysics® software for understanding the behavior of slurries of different viscosity. This study helps to ...

Development of a Thermal Model Using COMSOL Multiphysics® Software

A. Oukaira [1], A. Lakhssassi [1],
[1] Department of Computer Science, Université du Québec en Outaouais à Hull, Gatineau, QC, Canada

The Purpose of this paper is to develop a thermal model using COMSOL Multiphysics® software that aims to get an idea of the heat flow around the ASIC, as well as to address the thermal issues for integrated circuits at the tongue board. However, we need sources of heat simulations to map the tab to establish its thermal mapping. This led us to perform simulations at each ASIC of the tab that ...

Determination of the Load-dependent Thermal Conductivity of Porous Adsorbents

O. Kraft [1], J. Gaiser [1], M. Stripf [1],
[1] University of Applied Sciences, Karlsruhe, Baden-Würtemberg, Germany

Standard measuring techniques for thermal conductivity cannot be readily applied to determine the load-dependent thermal conductivity of porous adsorbents, because the local ad- and desorption inside the specimen and the thickness of the specimen are not considered. Hence, in this work a new measuring procedure combining the transient hot bridge (THB) with a three dimensional finite element ...

COMSOL Multiphysics Modeling of a 20-W Microwave Electrothermal Thruster

E. Gao, and S. Bilen
The Pennsylvania State University, University Park, PA, USA

The Microwave Electrothermal Thruster (MET) is a space electric propulsion device that uses an electromagnetic resonant cavity within which a free-floating plasma is ignited and sustained, heating a propellant gas that is that exhausted out of a gas-dynamic nozzle. For an empty cavity it is fairly straightforward to accurately calculate the cavity’s resonant frequency and describe the ...

Study of Artificial Molecular Engines Action Through COMSOL Multiphysics® Program

L. Moro[1], F. Lugli[1], and F. Zerbetto[1]

[1]Department of Chemistry “G. Ciamician”, Università di Bologna, Bologna, Italy

Rotaxanes are a class of molecules recently developed in laboratory that have been heralded as possible molecular motors. The motor is constituted by a linear molecule (thread) and a ring-shaped molecule (macrocycle), which is free to move along the thread, switching between two, or more, energetically stable interaction points (stations). Molecular motors start their functioning far from ...

Study of Hard-and Soft- Magnetorheological Elastomers (MRE’s) Actuation Capabilities

J. Roche[1], P. Von Lockette[1], and S. Lofland[2]
[1]Mechanical Engineering Dept., Rowan University, Glassboro, NJ
[2]Physics and Astronomy Dept., Rowan University, Glassboro, NJ

In this study, magneto-rheological elastomer (MRE) composite beams made of Barium hexaferrite (BaM) and Iron (Fe) powders combined with a highly-compliant matrix material were simulated using COMSOL\'s Solid Mechanics and AC/DC modules. The goal of the work was to develop models capable of predicting the actuation behavior of hard- and soft-magnetic MREs. This work simulates the bending of ...

Virtual Prototype of a Dielectric Window for High-Power Microwave Tubes - new

A. Leggieri[1], D. Passi[1], F. di Paolo[1]
[1]Dipartimento di Ingegneria Elettronica, Università degli Studi di Roma Tor Vergata, Rome, Italy

This paper describes the Virtual Prototype of a Dielectric Window or High Power Microwave Vacuum Tubes and Linear Accelerators. Design formulas are provided and Computer Aided Design techniques based on COMSOL Multiphysics® software are proposed. The virtual prototype considers the Thermo-mechanical effects due to the joule effect induced by the power which crosses the DW and the Thermal contact ...