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Voyez comment la modélisation et la simulation sont utilisées par les industries La modélisation et la simulation multiphysiques pilotent l'innovation dans tous les grands secteurs d'activité et dans le monde universitaire — comme en témoignent les nombreuses utilisations présentées dans des articles et des posters techniques présentés par des ingénieurs, chercheurs et scientifiques à la Conférence COMSOL chaque année. Inspirez-vous des récents proceedings réunis ci-dessous, ou, pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt, utilisez la recherche rapide.

Consultez les proceedings de la Conference COMSOL 2024

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A Moisture Transfer Model for Drying of Grain

K. Lund[1]
[1]Kurt Lund Consulting, Del Mar, California, USA

A kernel of grain is modeled as an isothermal sphere, with descriptive differential equations scaled or rendered into non-dimensional form, where moisture transfer is governed by internal diffusivity, not by surface conditions. The time dependent problem is solved with COMSOL and the ... En savoir plus

Pseudo-3D Multiphysics Simulation of a Hydride Vapor Phase Epitaxy Reactor

M. Hackert-Oschätzchen[1], M. Penzel[1], P. Plänitz[2], A. Schubert[1][3]
[1]Chemnitz University of Technology, Chemnitz, Germany
[2]GWT-TUD, Dresden, Germany
[3]Fraunhofer Institute for Machine Tools and Forming Technology IWU, Chemnitz, Germany

Gallium nitride (GaN) and its related nitride alloys with special physical properties are in technical areas of high interest. The growing of gallium nitride boules on non-native sapphire or silicon carbide requires complicated mechanisms of defect reduction in the lattice structure. ... En savoir plus

Surface to Surface Radiation Benchmarks

J. v. Schijndel [1], R. v. Eck [1], M. Klep [1],
[1] Eindhoven University of Technology, Eindhoven, Netherlands

The paper presents a student guide on how to implement surface to surface radiation within COMSOL Multiphysics® software for case studies found within the built environment. We included four benchmarks: (1) Radiation in a triangular cavity with infinite length; (2) Radiation between two ... En savoir plus

Modeling Voltammetry of a Rotating Disk Electrode

A. Giaccherini [1], A. Lavacchi [2],
[1] INSTM, Firenze, Italy
[2] ICCOM - CNR, Firenze, Italy

In this work we report a numerical model of a Rotating Disk Electrode (RDE) voltammetry in a finite size domain. Thus, explaining the discrepancy of the diffusion coefficient obtained from the experimental rotating speed, with respect to the literature data. We achieved a very good ... En savoir plus

Coupled Heat and Mass Transfer Model to Simulate Hygrothermal Behavior of Bio-Based Materials

M. Asli [1], F. Brachelet [1], A. Chauchois [1], E. Antczak [1]
[1] Université d'Artois, Béthune, France

This poster presents a numerical modeling approach for hygrothermal behavior of bio-based materials. The mathematical model describes the heat and moisture transfer through a wall of bio-based materials. The studied wall is subjected to both convective heat transfer and moisture flux ... En savoir plus

Optimization of Jet Mixer Geometry and Mixing Studies

A. Egedy[1], B. Molnar[1], T. Varga[1], T. Chován[1]
[1]Department of Process Engineering, University of Pannonia, Veszprém, Hungary

The primary aim of using jet as mixer, like in case of other mixing devices, is to increase the heat and mass transfer between the phases. Beside the injection position the geometry of the jet mixer and the injection nozzle has a major effect on the injection. In our study COMSOL ... En savoir plus

Computational Modeling of the Impact of Solar Irradiance on Chemical Degradation of Painted Wall Hangings in a Historical Interior

Z. Huijbregts[1], A. van Schijndel[1], H. Schellen[1], K. Keune[2], M. Eikema Hommes[3,4]
[1]Eindhoven University of Technology, Eindhoven, The Netherlands
[2]University of Amsterdam, Amsterdam, The Netherlands
[3]Cultural Heritage Agency, Amsterdam, The Netherlands
[4]Delft University of Technology, Delft, The Netherlands

The historic Hofkeshuis in Almelo (The Netherlands) locates a unique work of art: three walls in the rear salon of the private house are covered with an 18th century series of painted wall hangings (Figure 1). The simple and similar pigmentation of the paintings, their original hanging, ... En savoir plus

Heat Drain Device on Ultrasound Imaging Probe

G. Vigna[1], L. Spicci[1]
[1]Esaote SPA, Florence, Italy

Self-heating is a problem to consider for Ultrasound Imaging probes. Since the probe is in contact with the skin, it’s necessary to find a solution to lower the front face temperature in order to avoid patient discomfort, even at the most demanding operating condition. One solution ... En savoir plus

Maximizing Wireless Power Transfer Using Ferrite Rods within Telemetric Devices for Rodents

B. M. Badr [1], R. Somogyi-Csizmazia [1], K. R. Delaney [1], N. Dechev [1],
[1] Department of Mechanical Engineering, University of Victoria, Victoria, BC, Canada

A number of medical and research applications require implantable devices to locally stimulate internal organs and communicate the internal vital signals to the outer world. Wireless power transfer (WPT) technique is used to supply power to these devices. The power is transferred ... En savoir plus

COMSOL Multiphysics® for Building Energy Simulation (BES) Using BESTEST Criteria

A.W.M. (J.) Van Schijndel [1], D. P. M. Jacobs [1],
[1] Eindhoven University of Technology, Eindhoven, Netherlands

Pioneering Computational Models for the Built Environment Energy performance is becoming more important in the build environment. With better insulated buildings, the possibility of moisture problems and thermal bridges increases. There for, it is not only important to determine the ... En savoir plus

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