Model Gallery

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.

Plate Heat Exchanger - new

The model has its emphasis on heat transport in a very small heat exchanger which is commonly used in the field of Micro Electro Mechanical Systems, MEMS. In this case it might be a reactive processes that needs heating. The heat exchanger itself is constructed by stacking several pleated sheets or plates on top of each other whilst leaving a gap in between. The fluid used to transfer heat ...

Convective Cooling of a Potcore Inductor - new

The inductor is a common component in a variety of electrical devices. Its applications include power transformation and measurements, and it can also be used together with capacitors to create oscillators. In small devices with many components, such as in laptops, heat generation can be a problem and must be accounted for in the design. This axi-symmetric model studies the heat transfer in ...

Heat Transfer in a Surface-Mount Package for a Silicon Chip - new

All integrated circuits—especially high-speed devices—produce heat. In today’s dense electronic system layouts heat sources are many times placed close to heat-sensitive ICs. Designers of printed-circuit boards often need to consider the relative placement of heat-sensitive and heat-producing devices, so that the sensitive ones do not overheat. One type of heat-generating device is a ...

Disk-Stack Heat Sink - new

This problem follows a typical preliminary board-level thermal analysis. First perform a simulation of the board with some Integrated Circuits (ICs). Then, add a disk-stack heat sink to observe cooling effects. Finally, explore adding a copper layer to the bottom of the board in order to even out the temperature distribution. This exercise highlights a number of useful modeling techniques such ...

Heated Vertical Plate

This model shows the application of COMSOL Multiphysics in modeling the non-isothermal flow of gases at relatively low flow velocities. Here, a vertical plate is held at a constant temperature, which is higher than that of the surrounding air. When the warm plate heats the air near its surface, the air starts rising upward due to its change in density. The model assumes that the work done ...

Non-Isothermal Flow Around a Cooling Device

This model shows the application of COMSOL Multiphysics in the modeling of non-isothermal laminar flow of fluids (in this case a gas). The model assumes that the expansion work done by the gas is negligible, that the variations in temperature are obtained through external heating, and that the fluid is an ideal gas. The model treats the steady flow of a gas over a fin, which is heated by an ...

Thermal Modeling of a Power Transformer

This model describes the temperature distribution in a coil-shaped power transformer which is cooled by forced flow of transformer oil from the bottom. The properties of the oil varies strongly with temperature, making modeling of the fluid flow in combination with the heat transfer necessary. The results show the position of the "hot spot", and that there is an unexpected radial flow component ...

Parasol - new

This model illustrate how to model thermal effects of the sun as an external radiative source and considers wavelength-dependent surface emissivities. Two styrofoam coolers are exposed to ambient conditions. A parasol provides shade for one of the coolers for most of the day. The temperature of the beverage cans in the coolers is computed over time.

Thermoelectric leg - new

A thermoelectric leg is a fundamental component of a thermoelectric cooler (or heater). For example, a thermocouple is a thermoelectric module typically made of two thermoelectric legs: one made of p-type and of one n-type semiconductor material which are connected in series electrically and in parallel thermally.

Thermal Bridges In Building Construction—2D Composite Structure - new

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 through the structure are compared with published data. This example corresponds to the case 2 described in ...

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