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.

The Design of a Multilayer Planar Transformer for DC/DC Converter with a Resonant Inverter - new

M. Puskarczyk[1], R. Jez [1]
[1]ABB Corporate Research Center, Krakow, Poland

Multilayer planar transformers are widely implemented in power electronic applications. The design process of these elements is complicated due to the complexity of a magnetic circuit and high frequency interactions between windings. Additionally, an analytical approach to the analysis (based on mathematical formulas) can be uncertain. The applied FEM method of the analysis can be a solution to ...

Modeling of Ultrasonic Transducers and Ultrasonic Wave Propagation for Commercial Applications Using Finite Elements with Experimental Visualization of Waves for Validation - new

D. R. Andrews[1]
[1]Cambridge Ultrasonics, Over, UK

Finite element (FE) modelling of ultrasonic propagation using COMSOL Multiphysics® simulations can be used to create images of waves. Unfortunately, in time-stepping solutions, it is possible for numerical instabilities to grow large and dominate the solution adversely. Any design of transducer that is based upon poorly-configured FE models is unlikely to perform as expected and will almost ...

Exploratory FEM-Based Multiphysics Oxygen Transport and Cell Viability Models for Isolated Pancreatic Islets

P. Buchwald
Diabetes Research Institute and the Department of Molecular and Cellular Pharmacology, University of Miami, Miller School of Medicine, Miami, FL, USA

Cellular-level oxygen consumption and cell viability models incorporating physiologically realistic assumptions and fully scaled 2D/3D geometries have been implemented in COMSOL Multiphysics for isolated pancreatic islets. Oxygen consumption was assumed to follow Michaelis-Menten–type kinetics and to cease when local concentrations fell below a critical threshold. Results are in good agreement ...

CVD Graphene Growth Mechanism on Nickel Thin Films - new

K. Al-Shurman[1], H. Naseem[2]
[1]The Institute for Nanoscience & Engineering, University of Arkansas, Fayetteville, AR, USA
[2]Department of Electrical Engineering, University of Arkansas, Fayetteville, AR, USA

Chemical vapor deposition is considered a promising method for synthesis of graphene films on different types of substrate utilizing transition metals such as Ni. However, synthesizing a single-layer graphene and controlling the quality of the graphene CVD film on Ni are very challenging due to the multiplicity of the CVD growth conditions. COMSOL Multiphysics® software is used to investigate ...

Development of a 10 kW Microwave Applicator for Thermal Cracking of Lignite Briquettes

B. Lepers [1], G. Link [1], J. Jelonnek [1]
[1] Karlsruhe Institute of Technology, Institute for Pulsed Power and Microwave Technology, Karlsruhe, Germany

Introduction: The use of microwave energy for thermal cracking (from thermal stress and water pore pressure) of lignite-coal briquettes increases the lignite friability [1] and is beneficial for later chemical treatment inside a gasifier (for methanol production for example). An adequate use of microwave energy can improve the overall efficiency of the gasification process based on lignite ...

Models of Simple Iron Cored Electromagnets - new

J. Mammadov[1]
[1]University of Manchester, Manchester, UK

This report mainly discusses the implementation and results of a project proposal, “Modelling using Finite Element Methods”. The report is devoted to implementation, which is a model of an electromagnet. The software tool that is used to model the electromagnet is COMSOL Multiphysics®, a commercial FEA package provided by the University of Manchester, Computer Science School. Additionally, the ...

Modelling and Simulation of a Single Particle in Laminar Flow Regime of a Newtonian Liquid

D. Jamnani[1]

[1] Alpha Project Service, Vadodara, Gujarat, India

The interaction of a single particle in straight rectangular channel in laminar flow is modelled explicitly using the set of Navier Stokes equation for the fluid motion and Newton momentum equation for the particle motion in Cartesian coordinate system. The evaluation of integral force acting on the particle along with the behaviour of streamlines as a function of Reynolds number ReP < 120 is ...

Analysis of Hydrodynamic Plain Journal Bearing

Ravindra Mane[1], Sandeep soni[1]
[1]Department of Mechanical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India

This paper presents the 3D model of hydrodynamic plain journal bearing using COMSOL Multiphysics®. Using 3D Model, pressure distribution in plain journal bearing is obtained by steady state analysis of plain journal bearing. Generalized Reynolds equation is used for analyzing hydrodynamic journal bearing by COMSOL Multiphysics® as well as by analytical method by applying Sommerfeld boundary ...

Heat Transfer Modeling and Analysis of a Rotary Regenerative Air Pre-heater

R. K. Krishna, R. Ramachandran, and P. Srinivasan
Birla Institute of Technology and Science
Rajasthan, India

An attempt has been made to sustain the efficiency of an air pre-heater(APH) in the long run. The APH is modeled using COMSOL Multiphysics in 3D and fed with real life conditions. Upon Heat transfer analysis, the temperature profile was found out and from that, the regions undergoing maximum thermal fatigue stress was identified. The plates of the APH to the periphery are subjected to maximum ...

Modeling Convection during Melting of a Phase Change Material

D. Groulx, and R. Murray
Mechanical Engineering
Dalhousie University
Halifax, NS

COMSOL Multiphysics can be used to model a latent heat energy storage system. A 2D numerical study was performed to simulate melting of a PCM including both conduction and convective heat transfer. The heat transfer in fluids and laminar flow physics interfaces were used. To model natural convection, proper volume force was applied to the PCM. The viscosity was input as a piecewise, continuous ...