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.

On A Particle Tracking Technique To Predict Disinfection In Drinking Water Treatment Systems

B.A. Wols[1,2], J.A.M.H. Hofman[1,2], W.S.J. Uijttewaal[2], and J.C. van Dijk[2]
[1]KWR Watercycle Research Institute, Nieuwegein, The Netherlands
[2]Delft University of Technology, Niewegein, The Netherlands

Disinfection of drinking water is required to prevent the outbreak of water-borne diseases. Different treatment steps are available to disinfect the water, such as chlorination, ozonation or UV irradiation. The hydrodynamics of these processes play an important role in their performance. COMSOL Multiphysics was used to simulate the water flow in disinfection installations. Moreover, a particle ...

Convergence Rates For Models With Coupled 1D / 2D Subdomains

A. Bradji[1], E. Holzbecher[2], and M.S. Litz[2]
[1]Department of Mathematics, University of Annaba, Algeria
[2]Georg-August Universität Göttingen, Germany

It is well known that the convergence rate of a numerical model is significantly reduced, when the genuine character of the setting with differential equation and boundary condition is not given anymore. Here we examine the decrease of convergence order for models using COMSOL in which the problem set-up includes a coupling between a 1D and a 2D subdomain. In terms of physics we are dealing with ...

Microfluidic Design of neuron-MOSFET based on ISFET

A. Jain[1], and A. Garg[2]
[1]BITS Pilani, Goa Campus, India
[2]Bhartiya Vidyapeeth College, New Delhi, India

An ISFET is an ion-sensitive field effect transistor used to measure ion concentrations in a solution; when the ion concentration changes, the current through the transistor will change accordingly. Here, the solution is used as a gate electrode. A voltage between substrate and the oxide surfaces arises due to an ions sheath. The surface hydrolization of the OH groups of the gate materials ...

MEMS Comb Drive Gap Reduction Beyond Minimum Feature Size: A Computational Study

N. Osonwanne, and J.V. Clark
Purdue University, West Lafayette, IN, USA

In this paper we present a method to reduce the comb drive gap in micro electro mechanical systems (MEMS) beyond the minimum fabrication feature size. The benefit of reducing the gap space between comb drive fingers is to increase its sensitivity to changes in capacitance due to displacements. The minimum feature size of standard fabrication foundries is 2 microns. To reduce the gap beyond a ...

Lithium-Ion Battery Simulation for Greener Ford Vehicles

D. Bernardi
Ford Motor Company

Dr. Bernardi is a Research Engineer with Ford Motor Company in Dearborn, MI. Her research focuses on the analysis and simulation of electrochemical energy-storage and conversion systems. In particular, Dr. Bernardi develops mathematical models that predict system behavior and identify governing physicochemical processes. Experimental investigations support model development, analysis, and ...

Electromagnetic and Coupled Field Computations: A Perspective

S. V. Kulkarni
Indian Institute of Technology
Bombay, India

S. V. Kulkarni a Professor in Electrical Engineering Department, Indian Institute of Technology, Bombay, India. Previously, he worked at Crompton Greaves Limited and specialized in the design and development of transformers up to 400 kV class. He has authored book \"Transformer Engineering: Design and Practice\" published by Marcel Dekker, Taylor & Francis Group. The author of more than 120 ...

3D FEM-analysis of a Micromachined Wind Sensor Based on a Self-heated Thermistor Array

A. Talic[1], S. Cerimovic[2], M. Mutapcic[2], R. Beigelbeck[1], and F. Keplinger[2]
[1]Institute for Integrated Sensor Systems, Austrian Academy of Sciences, Wiener Neustadt, Austria
[2]Institute of Sensor and Actuator Systems, Vienna University of Technology, Vienna, Austria

We present COMSOL-based analyses and design optimizations of a micromachined wind sensor. The sensor relies on eight germanium thermistors embedded in a thin silicon nitride membrane, where two orthogonally arranged ensembles, each consisting of four thermistors, are connected to form a double Wheatstone-bridge. In operation, each bridge is supplied by a constant current and the self-heating of ...

Micro Mechanical Exploration of Composites for Superior Properties

R. C. Thiagarajan, and K. V. Chiranjeevi
ATOA Scientific Technologies Private Limited
Bangalore, India

The predictive engineering of materials is matured from predicting properties from known morphology or constituents to engineering novel morphology for superior properties. The focus of this paper is about implementation of computational material mechanics modeling method in COMSOL Multiphysics software for engineering the constituents for superior properties. A brief review of property ...

Non Linear Mechanical and Poromechanical Analyses: Comparison with Analytical Solutions

M. Souley, and A. Thoraval
INERIS
Ecole des Mines
Parc de Saurupt, France

The long-term behaviour of the underground excavations is a social and economic challenge particularly in the contexts of post-mining or radioactive waste storage. Numerical modelings are currently used to understand and forecast the complex behaviour of rock mass around the underground cavities. In order to accurately perform these multiphysics modelings at high space and time scales, it is ...

Material Selection and Computational Analysis on DOHC V16 Engine’s Mounting Bracket Using COMSOL Multiphysics

M. V. A. Nag[1]
[1]G.R.I.E.T., Hyderabad, AP, India

Reduction of the engine vibration and the dynamic forces transmitting from engine to the automotive body structure has always been an important part of automotive research. Automobile engineers face the task of creating a mechanism to absorb these vibrations and provide a smooth ride. The usage of Motor Mounts is the best solution for dampening the effects of vibrations and oscillations. This ...