La Bibliothèque d'Applications présente des modèles construits avec COMSOL Multiphysics pour la simulation d'une grande variété d'applications, dans les domaines de l'électromagnétisme, de la mécanique des solides, de la mécanique des fluides et de la chimie. Vous pouvez télécharger ces modèles résolus avec leur documentation détaillée, comprenant 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 et applications correspondant à votre domaine d'intérêt. Notez que de nombreux exemples présentés ici sont également accessibles via la Bibliothèques d'Applications intégrée au logiciel COMSOL Multiphysics® et disponible à partir du menu Fichier.
Vibrating Micromirror with Viscous and Thermal Damping: Transient Behavior
Micromirrors are used in certain MEMS devices to control optic elements. This example model illustrates a mirror that is initially actuated for a short time and then exhibits damped vibrations. It simulates a vibrating micromirror surrounded by air and uses the Thermoviscous Acoustics, ... En savoir plus
Inertial Focusing Between Two Parallel Walls
For more than 50 years, it has been known that neutrally buoyant particles in a flow channel tend to converge to specific locations in the channel cross section. For a cylindrical pipe, or two parallel planes carrying a Poiseuille flow, the equilibrium position is about 0.6 times the ... En savoir plus
DC Characteristics of a MESFET
In a MESFET, the gate forms a rectifying junction that controls the opening of the channel by varying the depletion width of the junction. In this model we simulate the response of a n-doped GaAs MESFET to different drain and gate voltages. For a n-doped material the electron ... En savoir plus
Newtonian Telescope Structural Analysis
This tutorial demonstrates a structural analysis of a simple telescope. The deformation of the telescope structure under gravity is examined and the effect on image quality is demonstrated. En savoir plus
Viscous Damping of a Microperforated Plate in the Slip Flow Regime
This tutorial model is of a micro perforated plate (also known as MPP) backed by a vibrating structure. This is a typical configuration in, for example, a MEMS microphone. The vibrating structure is not modeled explicitly, but just assigned a vibration velocity. The vibrating structure ... En savoir plus
Four-Point Bending Test of an IGBT Module
The four-point bending test is a conventional test method used to test the mechanical properties of materials subjected to bending. It is one of the main reliability tests for semiconductors. This model demonstrates the stress analysis of an IGBT module subjected to a four-point bending ... En savoir plus
Circularly Polarized Antenna for GPS Applications
One way to generate circular polarization from a microstrip patch antenna is to truncate the patch radiator. This model is tuned around the GPS frequency range. The axial ratios are calculated to show the degree of circular polarization. En savoir plus
Boltzmann DC Glow Discharge
This application models a DC glow discharge. The electron energy distribution function (EEDF) and electron transport properties are computed with the Boltzmann Equation, Two-Term Approximation interface. Since input parameters for the Boltzmann Equation, Two-Term Approximation interface, ... En savoir plus
Kirsch Infinite Plate Problem
This model describes a static stress analysis to obtain the stress distribution in the vicinity of a small hole in an infinite plate. The model is a classic benchmark and is described in Mechanics of Material, by D. Roylance. The stress level is then compared with the theoretical values. En savoir plus
Optical Yagi–Uda Antenna
This model demonstrates the use of boundary element method in the Electromagnetic Waves, Boundary Element interface to model an optical Yagi-Uda antenna. The antenna is driven by an electrical point dipole, which is implemented through the background field. The field distribution around ... En savoir plus