Galeria de Modelos

A Galeria de Modelos possui arquivos do COMSOL Multiphysics de várias áreas de aplicação incluindo elétrica, mecânica, escoamento e química. Você pode baixar modelos prontos e também tutoriais passo-a-passo para montar seu modelo, e usá-lo como ponto de partida para o seu próprio modelo. Use a função de busca "Quick Search" para encontrar modelos na sua área de interesse e faça o login ou o seu cadastro no COMSOL Access, cadastrando a sua licença do COMSOL, para poder baixar os arquivos.

Simulation of a Microrobot, 2D version

In this example, one of the legs of a silicon micro robot is modeled in COMSOL Multiphysics. A technique based on polyimide V-groove joints is used to get each of the legs to move. The polyimide has a relatively high coefficient of thermal expansion, and this causes the leg to bend slightly when the polyimide is heated. In the COMSOL Multiphysics simulation, a heat transfer model is coupled ...

Molecular Flow in an RF Coupler

This model computes the transmission probability through an RF coupler using both the angular coefficient method available in the Free Molecular Flow interface and a Monte Carlo method using the Mathematical Particle Tracing interface. The computed transmission probability determined by the two methods is in excellent agreement with less than a 1% difference. This model requires the Particle ...

1D Plane Slider bearing

This benchmark model computes the load-carrying capacity of a one dimensional hydrodynamic slider bearing. The results are compared with analytic expressions obtained by solving the Reynolds equations directly in this simple case.

Reaction Chain

This model describes the simultaneous transport of three solutes in a chain reaction within a variably saturated flow field. Involved are advection, dispersion, sorption, biodegradation, decay, and volatilization. The parent solute decays to a daughter product, which generates another tracked daughter. Built on the flow field described in Sorbing Solute, the transport scenario described here ...

Capacitance in a Microstrip

To illustrate how to calculate lumped parameters of capacitance, this model calculates such in a microstrip. The example shows the two different ways of calculating this: with a static analysis and with a time-harmonic analysis.

Heat-Sink Investigations using the Component Library

A common method for investigating a process or system is to first study the individual components in detail. You would then start by setting up detailed models for the various components and then merge them to describe the system as a whole. With COMSOL Multiphysics you can easily merge individual models to investigate how they interact as components in a system. This exercise illustrates ...

Eigenmodes of a Two-Speaker System in a Living Room

The placement of furniture in a living room affects the acoustic characteristics of a room. This model returns the eigenfrequencies around 90 Hz and the response at any point in the living room for frequencies up to 500 Hz. It includes absorbing and damping characteristics from some of the furniture.

Diverging Duct

When the diameter of a pipe suddenly increases, the area available for flow increases. Fluid with relatively high velocity will decelerate into a relatively slow moving fluid. Depending on the Reynolds number, this can cause turbulence and much of the excess in kinetic energy is converted into heat and therefore wasted. If the change of the cross-section is gradual, the kinetic energy can be ...

Thick Wall Cylinder Benchmark Problem

A thick wall cylinder is exposed to both internal and external pressure and thermal load. The model is both plane and axisymmetric. The results are compared to the analytic solution.

Molecular Flow Through an S-bend

This model computes the transmission probability through an s-bend geometry using both the angular coefficient method available in the Free Molecular Flow interface and a Monte Carlo method using the Mathematical Particle Tracing interface. The computed transmission probability by the two methods is in excellent agreement with less than a 1% difference. This model requires the Particle Tracing ...

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