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Ici vous trouverez les présentations issues des Conférences COMSOL à travers le monde. Réalisées par des utilisateurs de COMSOL Multiphysics, ces présentations explorent tous les domaines actuels d'innovation. Les applications couvrent pratiquement tous les secteurs industriels et impliquent des phénomènes électriques, mécaniques, fluidiques et chimiques. Utilisez la recherche rapide pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt.

Consultez les proceedings de la Conference COMSOL 2020

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Bengaluru 2023

Munich 2023

A General Method for Solving Equations - The Dynamical Functional Particle Method

M. Gulliksson, and S. Edvardsson
Mid Sweden University, Sundsvall, Sweden

Given any equation L(u)=0, e.g. a partial differential equation, it can be considered to be the stationary solution of a time dependent equation (in fact, time need only to be fictitious time not real time). Our approach is to choose the time dependence in analogy with an oscillating ... En savoir plus

Finite Element Modeling of the Stress Field in a Cell-Seeded Microchannel

G. Zhu, and Y. Li
Lawrence Technological University, Southfield, MI, USA

Fluids used in biomedical microelectromechanical systems (BioMEMS) devices often exhibit very different flow behavior from those in bulk solutions, which in turn affects the behavior of cells and biomolecules in the device. In this work, we investigate an integrated microfluidic system ... En savoir plus

Modeling of Transport and Reaction in a Catalytic Bed Using a Catalyst Particle Model

F. Allain, and A.G. Dixon
Worcester Polytechnic Institute, Worcester, MA, USA

A packed bed reactor consisting of spherical catalyst particles in a tube was simulated numerically. The steady-state pseudo-heterogeneous model consisted of a pseudo-continuum representation for the heat and mass transfer in the reactor tube. The reaction source terms were evaluated by ... En savoir plus

Simulation of a Magnetophoretic Device for the Separation of Colloidal Particles in Magnetic Fluids

S.K. Fateen, and M. Magdi
Cairo University, Giza, Egypt

Magnetophoresis of non-magnetic particles is the induced motion of non-magnetic particles suspended in magnetic media on the application of a magnetic field gradient. Magnetophoresis can be used in special separation devices to separate colloidal particles based on their sizes. ... En savoir plus

Conducting Finite Element Convergence Studies Using COMSOL 4.0

M.K. Gobbert, and D.W. Trott
University of Maryland, Baltimore, MD, USA

We will show how to carry out convergence studies of the FEM error on a sequence of progressively finer meshes in COMSOL Multiphysics on the example of Lagrange elements of varying polynomial degrees, which will also bring out the benefit of using higher order elements. The sample ... En savoir plus

Super-resolving Properties of Metallodielectric Stacks

N. Katte[1], J. Haus[1], J.B. Serushema[1], and M. Scalora[2]
[1]University of Dayton, Dayton, OH, USA
[2]Charles M. Bowden Research Center, Redstone Arsenal, AL, USA

We show that diffraction can be suppressed in a one-dimensional metallodielectric stack (MDS) at visible wavelengths to achieve super-resolution imaging. In our calculations we use two popular techniques, which can be adapted to investigate the imaging properties of MDSs. The two methods ... En savoir plus

Numerical Simulation of a Joule Heating Problem

S.M.F. Garcia[1], and P. Seshaiyer[2]
[1]U.S. Naval Academy, Annapolis, MD, USA
[2]George Mason University, Fairfax, VA, USA

In this work we consider a 1-D mathematical model that describes a heating problem combined with electrical current flows in a body which may undergo a phase change as a result of the heat generated by the current, so-called Joule heating. The model consists of a system of nonlinear ... En savoir plus

Modeling Microfluidic Separations Using COMSOL Multiphysics

B.A. Finlayson[1], and R.A. Shaw[2]
[1]University of Washington, Seattle, WA, USA
[2]National Research Council of Canada, Winnipeg, MB, Canada

Infrared spectroscopy can be used to identify chemicals in a stream provided the signal is strong enough. A microfluidic device is modeled here with the objective of separating serum components so as to enhance the metabolite/protein concentration ratio. Serum contains creatinine (a ... En savoir plus

Implementation of the Perfectly Matched Layer to Determine the Quality Factor of Axisymmetric Resonators in COMSOL

M.I. Cheema, and A.G. Kirk
McGill University, Montreal, QC, Canada

Due to the inseparability of the wave equation, numerical methods are needed to develop an accurate electromagnetic model for various axisymmetric resonators such as micro-discs and micro-toroids. Our purpose is the implementation of a perfectly matched layer to determine the quality ... En savoir plus

Robust and Reliability-based Design Optimization of Electromagnetic Actuators Using Heterogeneous Modeling with COMSOL Multiphysics and Dynamic Network Models

H. Neubert[1], A. Kamusella[1], and T-Q. Pham[2]
[1]Technische Universität Dresden, Germany
[2]OptiY e. K. Aschaffenburg, Germany

For an exemplary electromagnetic actuator used to drive a Braille printer, a design optimization was performed. The optimization involves stochastic variables and comprises nominal optimization, robustness analysis and robust design optimization. A heterogeneous model simulates the ... En savoir plus

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