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COMSOL Multiphysics Version 4.2

Virtual Geometry Tools

Virtual Geometry Tools

Version 4.2 includes new Virtual Geometry tools that allow for modification of CAD models without changing the underlying surface curvature. The overall effect is a mesh that accurately represents the geometry while keeping mesh size to a minimum. The picture shows an exhaust manifold that has been meshed using unprocessed CAD data (bottom left) and with the virtual geometry tools applied (bottom right).

Parametric Surfaces

Parametric Surfaces

The new Parametric Surfaces feature allows for creation of surfaces based on analytical expressions or look-up table data. The picture shows a flow simulation where imported elevation data was used to represent the gap of a rock fracture.

Report Generator

Report Generator

The new Report Generator creates HTML reports for models. Each report includes a table of contents with hyperlinks. The Report Generator uses a built-in Style Sheet, which you can customize to change the appearance of the report in a web browser.

Acoustic-Shell Interaction

Acoustic-Shell Interaction

A new multiphysics interface for Acoustic-Shell Interaction enables modeling of vibrating thin elastic structures and their induced sound pressure field. The picture shows a vibrating baffled membrane and the sound pressure level (dB) in the air that surrounds it.

Acoustic Coupler

Acoustic Coupler

The picture shows the thermoacoustics simulation of an acoustic coupler (ear canal simulator) with a damped Helmholtz resonator using the Acoustics Module. The model includes thermal conduction and viscous losses and allows for customizing the acoustic response.

Geomechanics Simulation

Geomechanics Simulation

Simulation of soil deformations when subject to load from a building using the new Geomechanics Module.

Turbulent Flow Simulation

Turbulent Flow Simulation

The model in this figure shows the simulation results of turbulent flow around the Ahmed body.

Free Molecular Flow

Free Molecular Flow

This model shows the new Microfluidics Module being used to model free molecular flow inside a semiconductor ion implanter, demonstrating that COMSOL can be used in the design process to minimize the pressure along the ion beam path.

High-Mach Number Fluid Flow

High-Mach Number Fluid Flow

The picture shows a benchmark model for turbulent compressible flow in a two-dimensional converging-diverging diffuser (Sajben diffuser). The flow enters the diffuser at a velocity of Ma = 0.46, accelerates through the converging part, and reaches supersonic conditions at the throat of the diffuser. The supersonic flow is terminated with a shock in the diverging part, after which the flow is subsonically decelerated.

EM Plane Wave Simulation

EM Plane Wave Simulation

The picture shows a model of a plane wave incident on a wire grating on a dielectric substrate. Coefficients for refraction, specular reflection, and first order diffraction are all computed as functions of the angle of incidence. This analysis is made possible by a new port boundary condition in the COMSOL RF Module.

Foil Wire

Foil Wire

This image shows the electric current simulation of a foil wire from a solar collector. An Electric Currents Shell physics interface is applied using the AC/DC Module in COMSOL.

3-port Circulator

3-port Circulator

The picture shows a t model for impedance matching of a lossy anisotropic ferrite 3-port circulator.

Li-ion Battery Simulation

Li-ion Battery Simulation

The picture shows the temperature field in the cooling channels and the Li-ion batteries of a battery pack for automotive applications. The model includes a high-fidelity electrochemical model of the batteries coupled to a thermal analysis for the batteries and the components in the battery pack and a fluid flow simulation in the cooling channels.

Catalytic Converter

Catalytic Converter

This image, created by using the Chemical Reaction Engineering Module, visualizes the temperature profile in a catalytic converter.

Decorative Electrodeposition

Decorative Electrodeposition

Thickness of the decorative deposited layer in a furniture fitting modeled with the Electrodeposition Module.

One Window Interface to SolidWorks®

One Window Interface to SolidWorks®

The LiveLink for SolidWorks product has been extended with a One Window Interface where a SolidWorks user can stay inside of the SolidWorks environment and work synchronously with COMSOL Multiphysics.

LiveLink™ for AutoCAD®

LiveLink™ for AutoCAD®

Electric current simulation of a foil wire from a solar collector based on a surface geometry created in AutoCAD. The synchronized geometry in the COMSOL model stays associative with the geometry in AutoCAD.

LiveLink™ for SpaceClaim®

LiveLink™ for SpaceClaim®

Thermal simulation of an exhaust manifold based on model in SpaceClaim using COMSOL and the LiveLink® for SpaceClaim®.