Die Modell Galerie umfasst COMSOL Multiphysics Modelldateien aus einer Vielzahl von Anwendungsbereichen, die von Mechanik und Elektronik über Strömungen bis zur Chemie reichen. Sie können fertige Modelle herunterladen sowie Schritt-für-Schritt-Anleitungen, mit denen Sie die Modelle nachbauen können, und verwenden Sie die Modelle als Ausgangspunkt für Ihre eigenen Anwendungen. Nutzen Sie die Quick Search, um die für Ihren Fachbereich relevanten Modelle zu finden. Um die Dateien herunterzuladen, loggen Sie sich ein oder erzeugen Sie einen COMSOL Access Account, der mit einer gültigen COMSOL Lizenz assoziiert ist. Beachten Sie, dass viele der hier vorgestellten Beispiele auch über die in die COMSOL Multiphysics® Software integrierte Anwendungsbibliotheken zugänglich und im Menü Datei verfügbar sind.
Optical Scattering Off of a Gold Nanosphere
This model demonstrates the simulation of the scattering of a plane wave of light by a gold nanosphere. The scattering is computed for the optical frequency range over which gold can be modeled as a material with negative complex-valued permittivity. The far-field pattern and losses are computed.
Shell-and-Tube Heat Exchanger
Shell-and-tube heat exchangers are commonly used in oil refineries and other large chemical processes. In this model, two separated fluids at different temperatures flow through the heat exchanger, one through the tubes (tube side) and the other through the shell around the tubes (shell side). Several design parameters and operating conditions influence the optimal performance of a shell and ...
Thin-Film Resistance
In modeling of transport by diffusion or conduction in thin layers, we often encounter large differences in dimensions of the different domains in a model. If the modeled structure is a so-called sandwich structure, we can replace the thinnest geometrical layers with a thin layer approximation, provided that the difference in thickness is very large. This method can be used in many ...
Magnetic Field of a Helmholtz Coil
A Helmholtz coil is a parallel pair of identical circular coils spaced one radius apart and wound so that the current flows through both coils in the same direction. This winding results in a uniform magnetic field between the coils with the primary component parallel to the axes of the two coils. Applications of Helmholtz coils range from canceling the earth’s magnetic field to generating ...
Dielectric Slab Waveguide
A planar dielectric slab waveguide demonstrates the principles behind any kind of dielectric waveguide such as a ridge waveguide or a step-index fiber. This model solves for the effective index and fields of a dielectric slab waveguide and compares the solution to analytic results.
Capillary Filling — Phase Field Method
This example studies a narrow vertical cylinder placed on top of a reservoir filled with water. Because of wall adhesion and surface tension at the air/water interface, water rises through the channel. Surface tension and wall adhesive forces are often used to transport fluid through microchannels in MEMS devices or to measure, transport and position small amounts of fluid using micropipettes. ...
Bracket — Transient Analysis
The bracket models are used as an introduction to structural mechanics modeling with the Structural Mechanics Module. The following features are introduced: * The fundamentals: static linear analysis * Parametric study * Including initial strain * Modeling thermal expansion * Adding a rigid connector * Adding spring conditions * Modeling with the *Shell* interface * Transient analysis * ...
Acoustic-Structure Interaction
Liquid or gas acoustics coupled to structural objects such as membranes, plates or solids are important applications in many engineering fields. This model is a general demonstration of an acoustic fluid phenomenon in 3D that is coupled to a solid object. The walls of the solid object are impacted by the acoustic pressure. The frequency response from the solid is calculated, which is then fed ...
Transport and Adsorption
This model demonstrates how to model phenomena defined in different dimensions in a fully coupled manner using COMSOL Multiphysics. Whereas in most cases the reaction rate expression is defined as a function of the concentrations of the reactants and products, in adsorption reactions it is also necessary to model the surface concentrations of the active sites or surface complex. This implies ...
Flow Through a Pipe Elbow
This example models the flow in a 90-degree pipe elbow. The flow is simulated using the k-omega turbulence model. The result is compared to engineering correlations.