La Bibliothèque de Modèles présente des modèles construits avec COMSOL Multiphysics pour la simulation d'une très grande variété d'applications, dans les domaines électrique, mécanique, fluidique et chimique. Vous pouvez télécharger ces modèles résolus avec leur documentation détaillée, notamment les instructions de construction pas à pas, et vous en servir comme point de départ de votre travail de simulation. Utilisez l'outil de recherche rapide pour trouver les modèles correspondant à votre domaine d'intérêt, et connectez vous avec votre compte COMSOL Access, associé à une licence COMSOL, afin de télécharger les fichiers modèles.
Heat Transfer Modulex

Interpolating Material Data on a Regular Shape as an Alternative to Building an Irregular Geometry

Creating irregular geometries can be a good solution, even the only option, for some types of applications. These files present a way to use a text file with material properties defined in coordinates to assign different materials even though there is only one regular domain. The same ... En Savoir Plus

Thermal Bridges in Building Construction — 2D Composite Structure

This example studies heat transfer in a composite two-dimensional structure. Four materials with distinct thermal conductivities k compose the structure. The top and bottom boundaries are facing environments respectively at 0°C and 20°C. The temperature distribution and the heat flux ... En Savoir Plus

Heat Transfer Modeling in Cellulosic Material Oxidation

Thermally induced transformations in solids may be modeled by using an Arrhenius law to express the dependence on temperature of the transformation rate. This tutorial model shows how to use the Irreversible Transformation subfeature, available under the Solid feature of the Heat ... En Savoir Plus

Light Diffusion in a Slab of Particles

This tutorial model shows how to use the Heat Transfer with Radiation in Absorbing-Scattering Media multiphysics interface to model light diffusion through a slab of particles, with the corresponding heating due to absorption and scattering. The numerical results are compared to an ... En Savoir Plus

Glazing Influence on Thermal Performances of a Window

During the design of a building, environmental issues have gained considerable influence in the entire project. One of the first concerns is to improve thermal performances. In this process, simulation software are key tools to model thermal losses and performances in the building. The ... En Savoir Plus

Thermoelectric Cooler, Lumped Thermal System

Thermoelectric coolers are widely used for electronics cooling in various application areas, ranging from consumer products to spacecraft design. The thermoelectric modules are a common application of thermoelectricity in cooling engineering. They consist of several thermoelectric legs ... En Savoir Plus

Radiative Cooling of a Glass Plate with Wavelength-Dependent Radiative Properties

A glass melt is cooled down by radiation to form the final shape. Wavelength dependence of radiative properties is considered in the first study; its effects on the temperature field is emphasized by comparison with results obtained in the second study wherein equivalent (constant) ... En Savoir Plus

Discrete Ordinates Quadrature Sets for Heat Transfer with Radiation in Participating Medium

This model compares quadrature sets used in the method of discrete ordinates. To assess the performance of quadrature sets in complex geometries, results of incident irradiation and energy balance and their dependency on rotating a square computational domain are quantified. En Savoir Plus

Thermal Performances of Roller Shutters

During the design of a building, environmental issues have gained considerable influence in the entire project. One of the first concerns is to improve thermal performances. In this process, simulation software are key tools to model thermal losses and performances in the building. The ... En Savoir Plus

Plate Heat Exchanger

The model has its emphasis on heat transport in a very small heat exchanger that is commonly used in the field of microelectromechanical systems (MEMS). In this case, it might be a reactive processes that needs heating. The heat exchanger itself is constructed by stacking several ... En Savoir Plus