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.

Surface tension driven flow during oxygen top blowing of liquid copper

Marin, T.1, 2, Utigard, T.1
1 Univeristy of Toronto, Materials Science and Engineering
2 Universidad de Chile, Departamento de Ingenieria de Minas

The rate of liquid copper oxidation plays an important role in the separation of impurities from copper during fire refining. A finite elements numerical model using FEMLAB 3.1 for the oxidation of liquid copper during top blowing of oxygen/nitrogen mixtures is presented and compared to experimental results. In this model, surface tension driven flow arising from gradients of oxygen ...

FEMLAB/MATLAB model for complex electric swing adsorption (ESA) system with in-vessel condensation

Petkovska, M.1, Antov-Bozalo, D.1, Markovic A.1, Sullivan, P.2
1 Faculty of Technology and Metallurgy, University of Belgrade Karnegijeva 4, Belgrade, Serbia and Montenegro

The subject of this investigation is a recently developed Electric Swing Adsorption (ESA) system (adsorption cycle with electrothermal desorption step, which is performed by direct heating of the adsorbent particles by passing electric current through them), with an adsorber assembled of two annular, radial-flow, cartridge-type fixed-beds, with in-vessel condensation. Three FEMLAB models were ...

FEMLAB simulation of thermoplastics injection-molding

Varela, A.E., Suárez, M.
Universidad de Carabobo, Facultad de Ingeniería, Valencia, Venezuela

The thermoplastics injection-molding process of has become one of the most important polymer processing operations in the production of molded parts with geometric complexity and high precision. Modeling and computer simulation of this process is not an easy task. Commercial computer packages have been designed for the simulation of the injection molding process. These programs allow the ...

Simulation of the Convective Heat Transfer and Working Temperature Field of a Photovoltaic Module Using COMSOL Multiphysics®

E. Ruiz-Reina[1] and M. Sidrach-de-Cardona[1]
[1]Departamento de Física Aplicada II, Universidad de Málaga, Málaga, Spain

The aim of this work is the Finite Element Analysis (FEA), by  using COMSOL Multiphysics®, of the convective heat transfer and working temperature field of a photovoltaic module under different wind conditions.

Modeling of Chemo-Mechanical Coupled Behavior of Cement Based Material

D. Hu[1], F. Zhang[2], H. Zhou[3], and J. Shao[1]
[1]LML, UMR8107, CNRS, University of Lille I, Lille, France
[2]School of Civil Engineering and Architecture, Hubei University of Technology, Wuhan, China
[3]State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China

A lixiviation-mechanical coupled model is developed for fiber reinforced concrete within this framework; both the influence of chemical degradation on short and long term mechanical behavior and the influence of mechanical loading on the diffusion coefficient can be considered. The elastic mechanical properties are written as function of chemical damage. A Drucker–Prager typed criterion with ...

Multiphase Transport with Large Deformations Undergoing Rubbery-Glassy Phase Transition: Applications to Drying

T. Gulati[1], A. Datta[1]
[1]Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA

Drying of biomaterials such as foodstuffs involves mass, momentum and energy transport along with large shrinkage of the porous material, which have significant effects on their final quality. Foodstuffs exhibit non-linearity when undergoing large deformations that affect the transport process in a critical way. Thus, it becomes important to perform a two-way coupling of the multiphase transport ...

A Study on Nutrient Mass Transport through Porous Channeled Flat Sheet Membrane and Prediction of Maximum Scaffold Thickness for Viable Cell Culture (In-vitro) by 3D Modeling for Tissue Engineering Application

N. M. S. Bettahalli[1], B. J. Papenburg [2], D. S. Stamatialis [2], M. Wessling [3]
[1]University of Twente, Enschede, The Netherlands & BMS College of Engineering, Bangalore, India
[2]University of Twente, Enschede, The Netherlands
[3]RWTH Aachen University

Tissue engineering (TE) is a multidisciplinary field involving principles of engineering and life sciences to improve the health and quality of life by repairing, restoring, maintaining, or enhancing tissue and organ function using cells, scaffolds, and growth factors alone or in combination. There are several artificial tissues that are already being used which include fabricated skin, ...

Simulation and Experimental Analysis of Drug Release Rates from Magnetic Nanocomposite Spheres

L. Saeeednia[1], H. Mehraein[2], F. Abedin[1], K. Cluff[2], R. Asmatulu[1]
[1]Department of Mechanical Engineering, Wichita State University, Wichita, KS, USA
[2]Department of Bioengineering, Wichita State University, Wichita, KS, USA

Targeted drug delivery systems have been wildly studied in cancer therapy due to the toxicity of most of chemotherapeutic drugs. Nanoparticles can be attached to the small molecules of the drugs and serve as drug carriers to deliver the drug molecules into the area of interest. In this research, polymeric microspheres containing biodegradable poly(D, L-lactide-co-glycolide) (PLGA), magnetic ...

Drying of Corn Kernels: From Experimental Images to Multiscale Multiphysics Modeling

P. Takhar[1], and S. Zhang[2]

[1]Texas Tech University, Lubbock, Texas, USA
[2]Visualization Sciences Group Inc., Burlington Massachusetts, USA

This work demonstrated the importance and feasibility of experimental image to simulation workflow. The workflow is successfully applied to a food processing study, where multiphysics and multiscale modeling based on 3D experimental image reconstruction contributes to the preservation of corn, one of the major food sources for the world population.

Simulation of the Degradation of Methyl Red by Gliding Arc Plasma

S. Cavadias [1], B. Trifi [2], S. Ognier[1], and N. Bellakhal[3]
[1]Laboratoire de Génie des Procédés Plasma et Traitement de Surface, Ecole Nationale Supérieure de Chimie de Paris, Université Pierre et Marie Curie, Paris, France
[2]Laboratoire de Chimie Analytique et Electrochimie, Département de Chimie, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis, Tunisie
[3]Département de Chimie et de Biologie Appliquées, Institut National des Sciences Appliquées et de Technologie, B.P. N°676, 1080 Tunis Cedex, Tunis, Tunisie

The use of plasmas for the treatment industrial effluents provides a new alternative to the decontamination of wastewater. The strong oxidizing species (O,O3, OH) generated by the plasma, at room temperature, can oxidise organic pollutants present in the water. Our simulation deals with the degradation of methyl red by a Glidarc humid air plasma producing active species, mainly OH, that can ...

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