COMSOL's Multiphysics, V4.3b software now offers five new application-specific modules and expanded modeling and analysis tools.

The five new modules include:

Multibody dynamics — Lets users analyze the assembly of rigid and flexible bodies. Transitional and rotational displacements, as well as locking, can be simulated for a variety of joint types, including prismatic, hinge, cylindrical, screw, planar, ball, slot, and reduced slot joints.

Wave optics — Users can analyze electromagnetic-wave propagation in optically large structures, such as optical fibers and sensors, bidirectional couplers, plasmonic devices, metamaterials, laser beam propagation, and nonlinear optical components.

Molecular flow module — Capability to simulate rarefied gas flow in complex CAD geometries of vacuum systems, including such applications as mass spectrometers, semiconductor processing, satellite technology, particle accelerators, shale gas exploration, and flow in nanoporous materials.

Semiconductor — Provides a detailed analysis of semiconductor device operations at the fundamental physics level allowing for the modeling of PN junctions, bipolar transistors, MOSFETs, MESFETs, thyristors, and Schottky diodes.

Electrochemistry — Tailored user interfaces for electroanalysis, electrolysis, and electrodialysis, used in applications that include glucose sensors, gas sensors, chlor-alkali electrolysis, desalination of seawater, waste water treatment, and control of electrochemical reactions in biomedical implants.

New features of Multiphysics 4.3b include:

Geometry and mesh lets users make quick what-if studies by taking a 2D geometry from the cross section of a 3D geometry. A new curvilinear coordinate-system tool defines anisotropic materials in curved geometric shapes.

Interfacing and productivity – This One Window Interface with LiveLink for Inventor lets users work with Multiphysics from within the Inventor environment. New updates in LiveLink for Excel allow the import of multiple models and export of material data.

Electrical – A magnetics solver facilitates faster stationary and time-dependent magnetics simulations. A new electrical contact feature has been added to the AC/DC Module.

Mechanical – Bolt pretension and beam cross-section analysis can now be simulated in the Structural Mechanics Module.

Fluid – A frozen rotor feature in the CFD Module efficiently solves for the pseudo-steady flow field in rotating machinery for laminar and turbulent flow. A new thin screen feature for thin permeable barriers allows the simulation of wire gauzes, grills, and perforated plates.

Chemical – The thin impermeable barrier for mass-transport feature lets users represent thin walls as interior boundaries with a no-mass-flux condition on both sides..

Multiphysics 4.3b is available worldwide for download. For more information about the new release, visit www.comsol.com/4.3b.