The results are compared with an analytical solution based on the flat piston approximation. A Tesla microvalve inhibits backwards flow using friction forces rather than moving parts. Corrosion Protection of a Ship Hull: This modeling technique can be used to complement realistic, but heavy-to-compute, 3D simulations with one or more simulations on 2D planar intersections.
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Principal curvature variables used for visualization and physics modeling. In this way, contour plots can be used to create curves in 2D, or extruded, revolved, or swept to surfaces in 3D.
This feature is available for 2D axisymmetric models and it introduces an extra dependent variable for the out-of-plane electron drift velocity.
COMSOL Release Highlights
This complements using Perfectly Matched Layers PMLs in the frequency-domain, by also providing infinite-domain absorption for time-dependent analysis. Two built-in algebraic models, Kays-Crawford and High-Schmidt number, automatically compute the Schmidt number.
The user interfaces have been improved with easier-to-understand terminology. Loudspeaker Driver using a Lumped Model. It is available in the Solid Mechanics user interface where, for each physical bolt, a Bolt selection subfeature is available.
The picture is from the Concrete Beam example tutorial in the Geomechanics Module.
Comsol Multiphysics 4.3a
coomsol A new equivalent fluid model called Boundary layer approximation is available for pressure acoustics. A 2D geometry used to illustrate the new tool for automatic mesh refinement of reentrant corners as well as boundary-layer meshing of interior boundaries. In addition to 3D, Virtual Operations are now also available for 2D modeling. The Apparent Heat Capacity Method modifies the four material properties of density, heat capacity, thermal conductivity, and the ratio xomsol specific heats, by smoothing the discontinuous jump at the phase change temperature and adding a distributed latent heat contribution to the heat capacity at the phase change temperature.
COMSOL b Multiphysics Software - Release Highlights
Common glass is transparent for light at co,sol wavelengths but opaque for infrared and ultraviolet light. The goal is to maximize the ratio of the pressure drop for the forwards and backwards flow across the device.
From here, simulation can be used together with experiment to calculate parameters such as exchange current densities and activation overpotentials.
An important application for the Electromechanics multiphysics interface is simulation of biased MEMS devices. Pseudo-time stepping is a method used for robust convergence muliphysics a steady-state solution for fluid flow. This assumes that the two surfaces can be represented in the contact region by two radiating, parallel plates. An example of Electrodeposition on a Resistive Patterned Wafer models time-dependent copper deposition on a resistive wafer in a cupplater reactor.
Solution time information is now available for each model together with information comxol which hardware configuration was used. In the second method, the load is created as the superposition of a few basic load cases. The visualizations show the electric potential at different snapshots in time.
In addition to the previously available Layer thickness and thermal conductivity, you can now also use a Thermal resistance option for Thin Thermally Resistive Layers. Turbulent reaction modeling is based on the so-called eddy dissipation concept EDC. This is available for the Electrostatics capacitance extractionElectric Currents resistance extractionand Magnetic and Electric Fields user interfaces. A new material, humid air, is available in the Liquids and Gases material library.
The Apparent Heat Capacity Method makes modeling phase change of materials easier. This new modeling example explores the convective flow effects in a cell with a rotating wafer. In addition, Thermoacoustic modal analysis is now available.
The analytical Circular Port feature for 3D models provides predefined modes similar to what was previously available for the Rectangular Port feature. This avoids the need to mesh the thickness of thin coils resulting in excessive mesh count and memory usage. The operation has built-in heuristics to determine how to collapse the selected face.
A split and recombine micromixer channel showing mixing of a tracer fluid by multi-lamination. Topics 3D Printing A.
Microfluidics Module New Model Tutorial: