Technical Papers and Presentations

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.

Transient Pseudo-3D Model of Multi-Beam Laser Thermal Treatment System

J. Brcka
Technology Development Center
TEL US Holdings, Inc.
Albany, NY

Laser thermal treatment (LTT) systems have applications in IC fabrication for improving low-k dielectrics properties, polymer curing and resist processing. This contribution deals with a transient model of fast scanning and pulsing laser multi-beam system used in semiconductor processing. General Heat Transfer application mode formulation with multi-scale modelling approaches are employed. The ...

Finite Element Convergence and Speed-Up Studies Using COMSOL Multiphysics and LiveLink™ for MATLAB® with Large Assembly Models

H. Pourzand[1], A.H. Aziz[1], A. Singh[1]
[1]Pennsylvania State University, State College, PA, USA

COMSOL Multiphysics along with its LiveLink™ for MATLAB® is used to investigate the needed number of elements and the required order of Lagrangean p element for a number of different simulation models. For this task, convergence study, speed up testing and interactive meshing is performed on a large assembly model which is also imported using the LiveLink™ for SolidWorks®. As a test bench, ...

Accelerating R&D with COMSOL: A Personal Account

Erik Birgersson[1]

[1]Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore

This presentation gives an account of how COMSOL Multiphysics® software has helped to accelerate research and development. It has been used to simulate energy systems such as fuel cells, biomedical systems such as hydrogels and human skin, and monolithic catalytic converters. Each of these systems requires a mathematical model that can accurately represent the relevant physics, and which can be ...

Adaptive Finite Element Method for Image Processing

Bazan, C.1, Blomgren, P.2
1 Computational Science Research Center, San Diego State University
2 Department of Mathematics & Statistics, San Diego State University

An adaptive finite element strategy is employed to solve the Perona-Malik model as modified by Catté, Lions, Morel and Coll for image processing by (often highly) nonlinear diffusion. FEMLAB® and MATLAB® are used to implement the experiments and they prove to be very suitable tools to run this type of problem. Refinement and coarsening of the grids are used as needed and the approach leads to ...

Use of COMSOL as an Educational Tool Through its Application to Ground Water Pollution

A. Modaressi-Farahmand-Razavi[1]
[1]MSS-Mat Laboratory, CNRS, Ecole Centrale Paris, Châtenay Malabry, France

Ensuring the quality of underground water and controlling its quantity is of major concern for the population. Therefore, this subject attracts many students from different specialties at different levels of their curriculum. In fact, the pedagogic objectives of the course may be different according to the level or/and interest of the students and COMSOL is used due to its versatility. In this ...

Modeling the Bacterial Clearance in Capillary Network Using Coupled Stochastic-Differential and Navier-Stokes Equations

A. Atalla[1], and A. Jeremic[1]
[1]McMaster University, Hamilton, Ontario, Canada

The capillary network is a complex-interconnected structure. A single blood cell traveling from the arteriole to a venule via a capillary bed passes through, on average, 40−100 capillary segments. The cardiovascular systems responsible of delivering blood to the tissue under sufficient pressure to exchange materials. This is a two way process, at which nutrients, Oxygen, and other ...

Computation of Space-Time Patterns via ALE Methods

V. Thümmler1, and A. Weddemann2
1Department of Mathematics, Bielefeld University, Bielefeld, Germany
2Department of Physics, Bielefeld University, Bielefeld, Germany

Partial differential equations which exhibit solutions that are spatial temporal patterns are often found in biological and chemical systems, e.g. when describing pattern formation in reaction-diffusion systems.Special classes of such patterns are relative equilibria and relative periodic orbits, which are solutions that in an appropriately co-moving frame of reference are stationary and ...

Using COMSOL for Smart Determination of Material Properties Using Inverse Modeling Techniques

J. van Schijndel, S. Uittenbosch, and T. Thomassen
Eindhoven University of Technology
Eindhoven, Netherlands

The paper presents the development of a method that determines building material and surface properties using relative simple and low-budget experiments, The method comprehends an optimal design of an experimental set up for smart determination of heat and moisture properties using both normal and inverse modeling techniques. It is concluded that the suggested methodology of the inverse ...

Bone Remodeling Following Total Hip Replacement: Short Stem Versus Long Stem Implants

M.S. Yeoman[1], A. Cizinauskas[1], C. Lowry[2], G. Vincent[3], S. Collins[3], D. Simpson[3]
[1]Continuum Blue, Tredomen, Ystrad Mynach, United Kingdom
[2]Corin Group, Cirencester, United Kingdom
[3]Imoprhics, Manchester, United Kingdom

Bone resorption around hip stems, in particular periprosthetic bone loss, is a common observation post-operatively. A number of factors influence the amount of bone loss over time and the mechanical environment following total hip replacement (THR) is important. Conventional long stem prostheses have been shown to transfer loads distally, resulting in bone loss of the proximal femur. More ...

Influência da Camada de Ar Sobre a Deformação de uma Embalagem de Líquido com Cartão Tipo LPB - new

I. Neitzel[1], K. B. Matos[1], L. R. Pesch[1]
[1]Faculdade de Telêmaco Borba - FATEB, Telêmaco Borba, Paraná, Brasil

As embalagens de produtos alimentícios são hoje em dia predominantemente feitas com cartão tipo LPB (Liquid Packaging Board) e usualmente estocadas de forma empilhada, tanto nas prateleiras como nos depósitos dos supermercados. O LPB é um compósito multicamadas de construção complexa, envolvendo, tipicamente, papel produzido com fibras virgens, polietileno e alumínio. O alimento líquido ...

Quick Search