The Application Gallery features COMSOL Multiphysics tutorial and demo app files pertinent to the electrical, mechanical, fluid, and chemical disciplines. You can download ready-to-use tutorial models and demo apps with step-by-step instructions for how to create them yourself. The examples in the gallery serve as a great starting point for your own simulation work.

Use the Quick Search to find tutorials and apps relevant to your area of expertise. Log in or create a COMSOL Access account that is associated with a valid COMSOL license to download the MPH-files.


Flow Around an Inclined NACA 0012 Airfoil

This model simulates the flow around an inclined NACA 0012 airfoil at different angles of attack using the SST turbulence model. The results show good agreement with the experimental lift data of Ladson and the pressure data of Gregory and O’Reilly.

Three-Phase Flow Bubble

This model is a benchmark model for three-phase flow, commonly used in food processing, pharmaceutical industry and chemical processing. The results are validated against data reported in literature. A gas bubble rises through two layers of liquid, one heavier liquid and a lighter liquid resting on to of the heavier one. As the bubble travels from the heavier liquid, it entrains some of the ...

Pipe Erosion due to Contaminant Particles

The _Particle Tracing for Fluid Flow_ interface is used to compute the erosion of a pipe bend. The amount of material lost is computed using different erosion models.

Solar Panel in Periodic Flow

The coupling of fluid flow and structural mechanics is a challenging problem for several reasons. The fluid flow problem usually requires a specific kind of mesh that is not appropriate for structural mechanics. Additionally, one may want to include geometric features in the structural model that are not significant for the fluid flow model. This model computes the structural stresses and ...

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.

Sloshing Two-Phase Flow in an Automobile Fuel Tank

Sloshing occurs in the tanks of vehicles during rapid acceleration and braking. This can be significantly reduced by inserting internal baffles into the tanks, positioned in a way so that the amplitude of the sloshing oscillation is dampened. Simulation can help to estimate effective designs for the baffles. The model investigates the two-phase flow in a realistic tank geometry, while tracking ...

Flow of Oldroyd-B Viscoelastic Fluid

Many complex fluids of interest exhibit a combination of viscous and elastic behavior under strain. Examples of such fluids are polymer solutions and melts, oil, toothpaste, and clay, among many others. The Oldroyd-B fluid presents one of the simplest constitutive models capable of describing the viscoelastic behavior of dilute polymeric solutions under general flow conditions. Despite the ...

Laminar Flow in a Baffled Stirred Mixer

This model exemplifies the use of the Rotating Machinery interface, which allows you to model moving rotating parts in, for example, stirred tanks, mixers, and pumps. The Rotating Machinery interface formulates the Navier-Stokes equations in a rotating coordinate system. Parts that are not rotated are expressed in the fixed material coordinate system. The rotating and fixed parts need to be ...

Water Purification Reactor

Water treatment basins are used in industrial-scale processes in order to remove bacteria or other contaminants, such as for making water safe to drink. The Water Treatment Basin application exemplifies the use of apps for modeling turbulent flow and material balances subject to chemical reactions. You can specify the dimensions and orientation of the basin, mixing baffles, and inlet and outlet ...

Displacement Ventilation

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 ...