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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 2024

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Boston 2024

Munich 2023

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Heat Transfer and Phase Change

Two Dimensional Finite Element Heat Transfer Analysis of a Buried Refined Bitumen Pipeline During Initial Start-up, Shutdown Following Initial Start-Up, and Normal Operation

R. Sisco
Worcester Polytechnic Institute, Worcester, MA, USA

This body of work uses the two dimensional finite element heat transfer capabilities of the conduction application mode within COMSOL to examine the temperature distribution in the fluid, pipe wall, insulation, and surrounding soil of a prototypical bitumen pipeline operating in a cold ... En savoir plus

Analysis of Burning Candle

J.S. Crompton, L.T. Gritter, S.Y. Yushanov, and K.C. Koppenhoefer
AltaSim Technologies LLC, Columbus, OH, USA

Analysis of burning candles is extremely complex; combustion produces a highly non-linear temperature profile through the flame in which local temperatures may exceed 1400 °C. Heat transfer includes radiation, conduction and convection components and the low melting point of the candle ... En savoir plus

Dimensionless versus Dimensional Analysis in CFD and Heat Transfer

H. Dillon[1], A.F. Emery[1], A. Mescher[1], and R.J. Cochran[2]
[1]University of Washington, Seattle, WA, USA
[2]Applied CHT, Seattle, WA, USA

Students in engineering and science are often exposed early in their studies to non dimensional analysis. When it comes to solving fluid flow/heat transfer problems, many solutions, particularly industrial ones, are based on finite element/finite volume using dimensioned quantities. In ... En savoir plus

Modeling Residual Stresses in Arc Welding

F. Roger[1], and A. Traidia[2]
[1]ENSTA Paristech, Paris, France
[2]AREVA NP, Saint Marcel, France

The prediction of mechanical response of assemblies during arc welding necessitates the knowledge of thermal history of the components and the constitutive behavior of the materials. COMSOL can simulate thermal and structural interaction but it needs to evaluate the time evolution of ... En savoir plus

Modeling of Shrinkage Behavior in Cement Paste Using Thermal-structural Interaction

T. Chen[1], and P.G. Ifju[1]

[1]University of Florida, Gainesville, Florida, USA

This paper describes using thermal-structural interaction to model the shrinkage behavior in cement paste under drying. An inverse method of combining the finite element analysis and the least-squares method is implemented to fit experimentally determined shrinkage in order to obtain ... En savoir plus

Model-Based Calibration System for Direct Thermal Printing

W. Vetterling[1], and Z. Peng[1]
[1]Zink Imaging, Inc., Bedford, Massachusetts, USA

This document describes a method for maintaining the long-term calibration of a full color direct thermal printer. An essential component of the system is a thermal model created using COMSOL Multiphysics that allows fitting of color data recorded at different temperatures and exposure ... En savoir plus

Control of Preheating Process of Casting Die as Distributed Parameter System

C. Belavý[1], G. Hulkó[1], K. Ondrejkovic[1], and P. Zajícek[1]
[1]Institute of Automation, Measurement and Applied Informatics, Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava, Bratislava, Slovak Republic

In the paper distributed parameter system models in the form of lumped-input/distributed-output systems are introduced and modeling of temperature fields of the die in the benchmark casting plant is presented. Temperature fields were modeled and studied using a finite element method ... En savoir plus

Modeling of Shrinkage Behavior in Cement Paste Using Thermal-structural Interaction

T. Chen[1], and P.G. Ifju[1]
[1]University of Florida, Gainesville, Florida, USA

This paper describes using thermal structural interaction to model the shrinkage behavior in cement paste under drying. An inverse method of combining the finite element analysis and the least-squares method is implemented to fit experimentally determined shrinkage in order to obtain ... En savoir plus

Negative Thermal Expansion Materials: Thermal Stress and Implications for Composite Materials

M.J. Jakubinek[1,2], C.A. Whitman[2,3], and M.A. White[1,2,3]
[1]Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada
[2]Institute for Research in Materials, Dalhousie University, Halifax, Nova Scotia, Canada
[3]Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada

There is considerable interest in the possibility of combining NTE materials with normal (positive) thermal expansion materials, to reduce the potential of failure of a material or component due to thermal stress fracture. Finite element analysis (FEM) is used to explore the overall ... En savoir plus

Optimization of a Thermal Actuator for Low Power/Low Cost Applications

R. Zúñiga-Quesada[1], M. Vílchez-Monge[1], P. Vega-Castillo[1]
[1]Instituto Tecnológico de Costa Rica, Cartago, Costa Rica

This work describes the study of a thermal actuator and modifications to the materials employed in order to decrease power consumption and implementation costs. For this study, we worked on improving the thermal actuator described in the work of T. Ebefors. The criteria for choosing the ... En savoir plus

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