The Thermal Contact feature can be applied to internal boundaries as well as to pairs in an assembly. New magnetics solver Periodic structures for electromagnetic waves Chemical: A moving-coil loudspeaker where a lumped parameter analogy represents the behavior of the electrical and mechanical speaker components. Multi-wavelength heat radiation Heat transfer with phase change Thermal contact Electrical: Geometry selections provide a very robust associative mapping technique for selections used in a parametric sweep when there are potentially large, topological changes. Optical systems with geometric dimensions much larger than the wavelength can be simulated accurately with the Wave Optics Module, whereas ray tracing approximations of light waves cannot. File import for the latest versions of several leading CAD packages are now supported:
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Co,sol with interfaces for surface and homogeneous chemical reactions, material transport in dilute and porous media, flow in free and porous media, electric currents, and heat transfer, the Electrochemistry Module covers an extensive range of applications involving electrochemical reactions.
Directional Coupler A model of a nultiphysics coupler formed from two interacting waveguides was developed using the Wave Optics Module. The design can be optimized by distributing a specific amount of material within the modeling domain.
New Models The following models are new to the model library of the Corrosion Module: The Stop Condition feature now comsol multiphysics 4.3b a table of multiple stop expressions.
Released May 3rd, The results are verified against published work. By default the Collapse Faces operation tries to ignore ccomsol resulting merged vertex or edges. The following models in the Optimization Module Model Library now use the Comsol multiphysics 4.3b study node to set up the optimization:. Multipurpose Back to Top. This model has been recreated using the new Magnetic Field Formulation physics user interface.
Cyclic Voltammetry A model of cyclic voltammetry was developed using the Electrochemistry Module. Merge Edges The Merge Edges operation comsol multiphysics 4.3b you to specify the edges to keep and remove, respectively, when collapsing a face.
This new example shows how to use an anisotropic hyperelastic material for modeling collagenous soft tissue in arterial walls. The swept mesher now automatically analyzes the geometry model in order to minimize the comsol multiphysics 4.3b of source and destination surfaces that need to be manually defined. E Reflected visible light passes through the glass. An automatically generated swept mesh of a circuit board model. Helicopter Swashplate Mechanism A model of the swashplate mechanism to control orientation of helicopter rotor blades was developed using the Multibody Dynamics Module.
A homopolar generator is composed of an electrically conductive rotating disc placed in a uniform magnetic field that is perpendicular to the plane of rotation. A new Electroanalysis user interface enables simulation of mass transport of diluted species in electrolytes using the diffusion-convection equation, by solving for electroactive species concentrations.
Thermal expansion is now available in the Piezoelectric Devices user interface. The Material Export Settings allows you to specify the material name and material property data to include in your library.
System Requirements – 4.3b Interfacing Product Suite
The Heat Transfer in Porous Media user interface has been reworked with a new domain feature. The electrical current and the heat cross from one part to the other only at the contact surface. The user can now choose to have the solver steps before multuphysics after the stop added as solutions. View Screenshot View Additional Screenshot.
The operation automatically determines the short edges to collapse, if any. Electrical Contact The new Electrical Contact feature calculates the electric current between two surfaces in contact with a conductance that varies with surface properties combined with mechanical contact pressure.
There are four flow regimes depending on the value of the Knudsen number Kn: The Rotating Cylinder Hull model showing the comsol multiphysics 4.3b potential and the tertiary overpotential.
This feature is available for frequency domain studies only and includes TE and TM mode types.
COMSOL Multiphysics b Release Highlights
The Comsol multiphysics 4.3b Heat Capacity Method makes modeling phase change of materials easier. The new user interface comes with a library of different engineering end-impedance models. Electroanalysis The new Electroanalysis user interface provides equations, boundary conditions, and rate expression terms for modeling mass transport of diluted species in electrolytes using the diffusion-convection equation, by solving for electroactive species concentrations.
Area Center of gravity Moments of inertia Principal axis directions Comsol multiphysics 4.3b rigidity Torsional section multiphysicss Distribution of stresses from bending, torsion and shear Shear center Shear area Warping constant Warping section modulus It is also possible to evaluate the stress distribution in the cross section, given a set of section forces: The collision probability is determined by the Collision cross section and Background number density.