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.

Turbulent Mixing of a Trace Species

This tutorial model demonstrates how mixing can be visualized in a stirred vessel by seeding a trace species from a point. The flow is modeled using the Rotating Machinery, Fluid Flow physics which solves Navier-Stokes equations on geometries with rotating parts, for example impellers. The transport of the trace species is modeled using the Transport of Diluted Species physics.

The Magnus Effect

The Magnus effect explains the curl that soccer players can give the ball, resulting in the enjoyable goals that we can see in every World Cup™. This model looks at the Magnus effect in the laminar and turbulent flow regimes for transient and stationary flows. It also discusses the simulation results and relates them to experimental measurements on soccer balls found in the literature.

Displacement Ventilation of Air in a Room

In general, there are two classes of ventilation: mixing ventilation and displacement ventilation. In displacement ventilation, air enters a room at the floor level and displaces warmer air to achieve the desired temperature. Heating sources in the room can include running electronic devices, or inlet jets of warm air. A potential issue with the displacement ventilation approach is that ...

Turbulent Flow over a Backward-Facing Step

The backward facing step is an interesting case for studying the performance and solution strategy of a turbulence model. In this case, the flow is subjected to a sudden increase of cross-sectional area, resulting in a separation of flow starting at the point of expansion. Spatial variations in the velocity field cause production of turbulence outside the wall region and its interaction with ...

Flow in a Bubble Column Reactor

This example illustrates multiphase flow modeling in a bubble column reactor. The reactor is filled with water and gas bubbles are injected from the bottom. Due to buoyancy, the bubbles rise, inducing a circulating motion of the liquid. Furthermore, as the bubbles rise through the water, gas dissolves from the bubbles into the liquid. The example uses the macroscopic, two-phase flow model ...

Swirl Flow Around a Rotating Disk

Swirl flow is an application that involves steady rotational flow around an axis. Rather than modeling this process in 3D, COMSOL Multiphysics provides a 2D axisymmetric interface where the flow in the rotational direction is still included in the equations. This example shows the effect of a rotating cylinder on the flow in a container. Such applications are often used in chemical kinetic ...

Flow in an Airlift Loop Reactor

This example illustrates multiphase flow modeling in an airlift loop reactor. The reactor is filled with water and air bubbles are injected at the bottom through two frits. Due to buoyancy, the bubbles rise, inducing a circulating motion of the liquid. The model specifically investigates the effect of including bubble-induced turbulence.

Phase Separation

Phase separation occurs when a binary system is quenched from its stable, homogeneous one-phase state into the two-phase region of its phase diagram. The spontaneous separation of two immiscible fluids is sometimes referred to as spinodal decomposition. Each phase tends to separate into pure components. This benchmark model takes two initially mixed, immiscible phases and observes their ...

Separation Through Electrocoalescence

Applying an electric field across a suspension of immiscible liquids may stimulate droplets of the same phase to coalesce. The method known as electrocoalescence has important applications, for instance, in the separation of oil from water. To model electrocoalescence, you need to solve the Navier-Stokes equations, describing the fluid motion, as well as track the interfaces between the ...

Syngas Combustion in a Round-Jet Burner

The model simulates non-premixed turbulent combustion of syngas (synthesis gas) in a simple round-jet burner. Syngas is a gas mixture, primarily composed of hydrogen, carbon monoxide and carbon dioxide. The name syngas relates to its use in creating synthetic natural gas. In the model, syngas is fed from a pipe into an open region with a slow co-flow of air. Upon exiting the pipe, the syngas ...

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