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New Products• Nonlinear Structural Materials Module • Nonlinear material models for structural mechanics. • Elastoplastic, hyperelastic, viscoplastic, and creep material models. • Large strain plastic deformation.• Pipe Flow Module • 1D flow, heat, and mass transport in 2D and 3D pipe networks. • Direct coupling between pipe flow and volumetric CFD. • Pipe cross-sections, friction models, valves, pumps, elbows, T-junctions.• Corrosion Module • Corrosion and corrosion protection simulations based on electrochemical principles. • Galvanic, pitting, and crevice corrosion. • Cathode protection.
Major New Features• Geometry and Mesh – Faster meshing for imported CAD files and the LiveLink products for CAD. – Mesh selections for creating new boundaries and domains for any imported mesh.• Electromagnetics – AC/DC: 3D rotating machinery and automatic coil excitation. – RF: New polar plots for far field in 2D and 3D.• Structural Mechanics – New nonlinear solver for mechanical contact and highly nonlinear simulations. – Load cases for easy setup of multistep simulations.• CFD – Turbulent mixing for mass transport simulations.• Heat Transfer – Solar irradiation from latitude, longitude, date, and time.• Particle Tracing – Brownian force and particle-particle interactions. – Secondary emission and sticking probabilities.
Nonlinear Structural Materials Module Flattening of a pipe• Description: with large strain elastoplastic – Nonlinear Material Models for Structural deformation. Mechanics and MEMS. – Add-on to the Structural Mechanics Module or MEMS Module. A few of the listed material models were previously available in the Structural Mechanics and MEMS Modules.• Applications: – Any structural deformations where deformations are large enough or operating conditions are such, e.g. high temperature, that material nonlinearities become important. Animation: Flattening of a pipe (animation in presentation mode). Necking of a metal bar. This example is a classical benchmark for large strain plastic deformation.
Nonlinear Structural Materials Module• Features & User Interfaces: – Elastoplastic Material Models • Isotropic, Kinematic, and Perfectly Plastic Hardening • Large-strain plasticity, for elastic and hyperelastic materials • Orthotropic Hill Plasticity • Tresca and von Mises Yield Criterion • User-defined Flow Rules – Viscoplastic Material Model • Anand – Creep Material Models • Coble, Deviatoric, Garofalo, Nabarro- Herring, Norton, Norton-Bailey, Potential, User-defined, Volumetric, Weertman – Hyperelastic Material Models • Arruda-Boyce, Money-Rivlin: two, five, and nine parameters, Murnaghan, Neo- Hookean, Ogden, St Venant-Kirchoff, User- defined
Pipe Flow Module• Description: – Flow, heat, and mass transport in pipe networks. – The pipe systems are modeled as geometrical 1D lines or curves embedded in 2D or 3D and are created using the existing Cooling of a plastic mold of a drawing tools in COMSOL Multiphysics. steering wheel – including – Add-on to COMSOL Multiphysics. pipe flow in cooling channels.• Applications: – Hydraulics – Water distribution systems – Energy: nuclear, hydropower, geothermal – Cooling systems in combustion engines and turbomachinery – Heating systems – Chemical process industry such as plant Pipe system for geothermal distribution systems heating. – Oil refinery pipe systems – Lubrication
Pipe Flow Module• Features & User Interfaces – Seven Physics user interfaces: • Pipe Flow, Single Phase • Water Hammer • Non-Isothermal Pipe Flow • Heat Transfer in Pipes • Reacting Pipe Flow* • Transport of Diluted Species in Pipes* • Pipe Acoustics, Transient** *=more advanced user interfaces available when combined with other transport modules **=when combined with the Acoustics Module A reactor simulation for synthesis – Bidirectional couplings can be made between pipes of phtalic anhydride under and 2D and 3D solid or fluid domains, as well as autothermal conditions using the between flow, heat, and mass applications. Pipe Flow Module together with the – Pipe cross-sections, automatic transition between Chemical Reaction Engineering Module. laminar and turbulent flow, surface roughness, and different friction models. – Preset options for valves, pumps, elbows, T-junctions.
Corrosion Module• Description: – Corrosion and corrosion protection simulations based on electrochemical principles. – Galvanic, pitting, crevice corrosion, and more. – Cathode protection. – Add-on to COMSOL Multiphysics.• Applications: – Corrosion and corrosion protection of: • Off-shore structures such as oil rigs • Ships and submarines Galvanic corrosion of a • Civil-engineering structures Magnesium Alloy (AE44) - mild • Chemical process industry equipment steel couple in brine solution (salt • Automotive parts water). The electrode material • Mechanical structures in aerospace applications removal is represented with a moving mesh.
Corrosion Module• Features & User Interfaces: – Primary, Secondary, and Tertiary Current Distribution – Corrosion and Moving Mesh: • Secondary Currents • Tertiary Currents, Nernst-Planck Equation – Thin shell electrodes – Influence of material transport and material concentration on corrosion and corrosion protection including diffusion, migration and fluid flow effects – Include effects of heat transfer on material transport and corrosion rates – AC impedance simulations
Mesh and Geometry• Mesh selections for creating new boundaries and domains for any imported mesh.• Virtual Geometry operations now also available for 2D modeling.• Export geometry, mesh, and deformed mesh to the STL file format.• Extrude and revolve directly from 3D surfaces.• Move and change the order of geometric primitives and operations in the Model Builder tree. Modify the boundary and domain subdivision of an imported mesh with new mesh selection operations.
Studies and Solvers• New user interface for parametric sweep with multiple parameters – Sweep for multiple parameters with dedicated visualization and postprocessing tools. – Choose between sweeping for Specified combinations only or All combinations.• New Cluster Sweep and Batch Sweep – User interface for starting and stopping jobs for individual parameter combinations. – Accessing parametric sweep results before completion of full sweep.• New nonlinear solver – Double dog-leg solver addresses larger class of highly nonlinear simulations.• Modify the physics tree and variables for each study step – Disable and enable Physics settings per study step to create customized analysis sequence .
Results and Visualization• Report Generator News – The report generator now outputs to Microsoft Word file format, in addition to the previous HTML The report generator now format. Office 2007 and 2010 are outputs to Microsoft Word format, in addition to the supported. previous HTML format. – The report generator now adapts to local languages.• New plot types – 3D and 2D far field plots for RF and acoustics applications – Comet tail plot for particle tracing – 2D histograms – Sector symmetry data set and plots A particle tracing simulation of a mixer visualized with the new comet tail plot.
COMSOL Desktop• The Model Library supports partially stored example models – Many more tutorial models easily accessible without occupying precious hard drive space. – Download large tutorials and new tutorials on demand with the Model Library Update.• Control storage of solutions in memory and number of processors used directly from the Preferences window.• Sort Physics settings for Domain, Boundary, Edge, and Point based on Space Dimension.• Updated GUI layout with new easy-to- reach placement of buttons in settings windows.
CAD Import Module• Faster meshing for imported CAD files with the CAD Import Module and the LiveLink products for CAD, particularly when using Virtual Geometry operations.• The CAD Import Module and the LiveLink products for CAD now supports the following new and updated file formats – Creo™ Parametric 1.0 (new) – ACIS® (SAT) R22 – CATIA® V5 R21 (needs license for Import for CATIA V5) – Inventor® 2012 This geometry of a lung was imported using – Parasolid® R23, R24 the CAD Import Module. The upgraded – SolidWorks® 2012 meshing algorithm creates a mesh in 30 seconds on an workstation with an Intel Xeon W3503 2.4GHz processor. Geometry courtesy of Prof. Thomas Royston and Ying Peng, Acoustics & Vibrations Laboratory, University of Illinois at Chicago.
LiveLink for SolidWorks®• Automatically link parameter names from SolidWorks to COMSOL for easier set up of parametric sweeps.• Control associativity per geometric entity type to improve performance for synchronizing large models.• One Window Interface – Particle Tracing is now available in the One Window Interface. – Selections and selection highlighting improvements. – Virtual Geometry operations are now available. – Display of progress information for solution process in a docked window. – Connection to external server or cluster is now available.• The LiveLink for SolidWorks now supports the following new and updated file formats – Creo™ Parametric 1.0 (new) – ACIS® (SAT) R22 – CATIA® V5 R21 (needs license for Import for CATIA V5) – Inventor® 2012 – Parasolid® R23, R24 – SolidWorks® 2012
LiveLink for Pro/ENGINEER® andCreo™Parametric• Automatically link parameter names from Pro/ENGINEER or Creo Parametric to COMSOL for easier set up of parametric sweeps.• The LiveLink for Pro/ENGINEER and the LiveLink for Creo Parametric now supports the following new and updated file formats – Creo™ Parametric 1.0 (new) – ACIS® (SAT) R22 – CATIA® V5 R21 (needs license for Import for CATIA V5) – Inventor® 2012 – Parasolid® R23, R24 – SolidWorks® 2012
LiveLink for Inventor®• Automatically link parameter names from Inventor to COMSOL for easier set up of parametric sweeps.• File based CAD import now supports the following new and updated file formats: – Creo™ Parametric 1.0 (new) – ACIS® (SAT) R22 – CATIA® V5 R21 (needs license for Import for CATIA V5) – Inventor® 2012 – Parasolid® R23, R24 – SolidWorks® 2012
AC/DC Module• Automatic coil excitation for 3D coils Automatic coil excitation of a saddle coil. Arrows and colors – Single turn coil excitation. represent the magnetic flux – Multiturn coil excitation. density (B-field). – Arbitrary shaped coils including toroid, helicoid, saddle.• 3D rotating machinery – Brushless motors and generators, radial and axial flux machinery, brushed DC electric motors. – Dedicated mixed electromagnetic potential formulation for rotating machinery. A DC motor simulated with the 3D rotating machinery user interface. Visualized are: B- field, coil current, axial torque, and rotational angle.
RF Module• New far field plots – Fast 2D and 3D far field plots Far field plots for 3D, – User-defined cut plane far field plots 2D, and 3D cut – Directivity calculation planes.• Dispersive materials – Drude-Lorentz, Debye, Sellmeier• Porous media• Transmission line equations• Many new tutorial examples Dispersive Electromagnetic material models. wave propagation through porous media.
Structural Mechanics Module• New nonlinear solver for mechanical contact and highly nonlinear simulations. – New “double dog-leg“ solver is latest addition to COMSOL’s nonlinear solvers and is the new default for mechanical contact simulations. Analysis of an• New periodic boundary condition impeller using the – Dynamic cyclic symmetry and Floquet periodicity condition new dynamic cyclic for solid mechanics and piezoelectric models. symmetry boundary• New mechanism for load cases condition. – Tag loads or constraints with new load and constraint groups. – Control activation of load cases in Study settings.• Membrane – Elastic membrane for very thin structures with negligible bending stiffness. New tools for load and constraint• Kinetic energy cases. – Kinetic and elastic potential energy now available for all structural mechanics Physics user interfaces.• Silent boundaries – New low-reflecting boundary for time and frequency domain simulations.• Rigid connector for shells – Combine rigid connectors for shells and solids.
Geomechanics Module• Large Strain Plasticity for Elastoplastic Material Models• Tension Cut-Off – Tension cut-off is now available for the soil plasticity and concrete materials models: Drucker-Prager, Mohr-Coloumb, Matsuoka- Nakai, Lade-Duncan, Bresler-Pister, Ottosen, and William-Warnke.• Creep Material Models Tension cut-off is now – Deviatoric available for soil plasticity – Potential and concrete material – User-defined models. – Volumetric
Acoustics Module• Thermoacoustics – Thermoacoustic-shell interaction user interface: Combine the Acoustics Module with the Structural Mechanics Module for bidirectionally coupled thermoacoustic-shell simulations. – Thermoacoustic modal analysis.• Pipe acoustics – Combine the Acoustics Module with the Pipe Flow Module for transient acoustics in 1D pipes.• New far-field calculation with dedicated far-field plots in 1D, 2D and 3D.• New periodic boundary conditions with cyclic symmetry and Floquet periodicity for pressure acoustics, thermoacoustics, solid mechanics, elastic, and poroelastic waves.• Silent boundaries Transfer impedance, microphone – New low-reflecting boundary for time and frequency domain response, and sound pressure simulations. level (SPL) of a generic ear canal• New Models coupler. – Porous absorber – Condenser microphone – Generic 711 coupler, occluded ear canal simulator – Acoustic scattering off an ellipsoid
MEMS Module• Piezoresistivity user interfaces – 3 new user interfaces for piezoresistivity in shells, domains, or with boundary currents. A piezoresistive pressure sensor – Piezoresistive material library for single crystal and simulation showing stress-induced polycrystaline p- and n-doped Silicon. potential difference produced by a four• S-parameter calculations terminal piezoresistor when the – Compute S-parameters for piezoelectric, electric, and membrane in which it is embedded is electromechanical devices. deformed by an applied pressure.• Upgrades to the Electromechanics user interface – New linear elastic dielectric and linear elastic material material models -- control which domains have active electric and elastic physics settings.• Coordinate visualizations – Visualize the different material orientations in stacks of piezoelectric materials.• New periodic boundary condition – Dynamic cyclic symmetry and Floquet periodicity A capacitive pressure sensor simulated condition for solid mechanics and piezoelectric models. using the Electromechanics user interface of the MEMS Module.
CFD Module• Turbulent Mixing – The user interfaces for Transport of Diluted Species and Transport of Concentrated Species feature a new Turbulent Mixing sub-feature. The sub-feature models the additional mixing caused by turbulence by adding turbulent diffusivity to the molecular diffusivity.• Updated Vacuum Pump boundary condition – Now a separate boundary condition with enhanced graphical support which shows the intended flow direction during physics set up.• Time-dependent rotational speed for Rotating Machinery: 𝜔 = 𝜔(𝑡).• Updated turbulent drift in the Mixture Model A baffled turbulent mixer interface increases both accuracy and simulation using the new Turbulent Mixing user interface. stability.
Heat Transfer Module• Automatic computation of solar position based on astronomical data.• Interior thin-walls for non-isothermal and conjugate heat transfer flow simulations.• Enthalpy and internal energy are now calculated using state integrals. This gives increased accuracy for heat and energy balances. This improvement is included in all heat transfer interfaces in all modules.• Updated Fan and Grille boundary conditions The External Radiation Source – Now separate boundary conditions with enhanced graphical settings for the new Solar position support which shows the intended flow direction during physics option. The solar irradiation set up. direction is automatically computed from location, date, and local time. Isotherms in a structure separating two floors of a building. Comparison with European standard EN ISO 10211:2007 for thermal bridges in building constructions.
Microfluidics Module• Transitional flow – The transitional flow user interface is now available in 3D. – Choose velocity space resolution by selecting from a list of predefined quadrature settings. – Optimized solver suggestions for controlling trade-off between memory usage and solution time.• Controlled diffusion micromixer example – New version of this model comes with flow-rate A controlled diffusion micromixer simulation with a concentration based inlet boundary conditions and shows how dependent viscosity. the concentration dependent viscosity affects the velocity profile.
Plasma Module• New solver for inductively coupled plasmas (ICP) – Drive plasmas with fixed total power. – Addresses larger class of plasma simulations.• New models: – Plasma Enhanced Chemical Vapor Deposition (PECVD). – Electronegative inductively coupled plasma, oxygen Plasma Enhanced Chemical Vapor chemistry. Deposition (PECVD) simulation in the Plasma Module. Shown is the• Improved handling of cathode fall region in DC magnetic flux density in the plasma discharges with mesh control edges. as well as the accumulated growth height of Silicon.• Ion angular energy distribution function (IAEDF) with 2D histograms.• Grouping of variables for results processing.• Reduced electric field study type for the Boltzmann interface.
Particle Tracing Module• New built-in forces – Brownian, thermophoretic, magnetophoretic, and Schiller- Naumann drag force.• Particle-particle interaction Animation: Particle-particle – For continuously acting forces: Coloumb, Lennard-Jones, interaction illustrating and user defined. gravitational attraction.• Secondary emission of particles – Emission may depend on incident velocity and energy.• Sticking expressions and coefficients – Particle stick to walls with a given probability or user-defined expression.• New release mechanisms – Release particles with combinations of initial positions and velocities: spherical and hemispherical.• 2D histograms – Visualize ion angular energy distribution function (IAEDF). Animation: Secondary emission of• Distribution functions for auxiliary dependent particles in the oscillating electromagnetic field of a schematic variables multipactor. Visualization with new – Allows for mass and size distributions of particles. comet tail plot.
Chemical Reaction Engineering Module• Reaction engineering for porous media – Reaction engineering chemistry can now be exported to the following interfaces for transport in porous media: Free and Porous Media, Heat Transfer in Porous Media, and Transport of Diluted Species in Porous Media.• Equilibrium reactions in reacting systems – Equilibrium reactions in reacting systems can now be exported to the Transport of Concentrated Species and Nernst-Planck interfaces.• CHEMKIN® import – Greatly improved CHEMKIN import with support for hundreds of reactions.• Increased performance for simulations with many chemical species Dissociation in a Tubular Reactor: – Uniform scaling of concentration variables improves greatly the Irreversible dissociation reaction of a species. solver performance for models with many chemical species. As the reactant is consumed, the concentration in the gas phase increases,• New models which leads to an expansion of the gas – Protein adsorption mixture, and an acceleration in the flow field. – Dissociation in a tubular reactor – Compression ignition chemistry in an engine, with more than 300 reactions
Batteries & Fuel Cells Module• New Separator domain property – Available for Lithium-Ion Battery and Battery with Binary Electrolyte interfaces. – Electrolyte volume fraction, electrolyte conductivity, salt diffusivity, transport number, active dependence, and effective transport parameter correction.• Shell Electrode interface New separator domain – Electrode, Depositing Electrode, and Corroding Electrode property for Lithium-Ion Battery options for modeling thin electrodes. and Battery with Binary• Electrode Potential Electrolyte interfaces. – Give reference electrodes or points for electrode potential.• New models – All-Solid-State Lithium-Ion Battery • Shows how to use the Tertiary Current Distribution interface to model the currents and electrolyte mass transport in a thin-film all-solid-state lithium-ion battery. – Capacity Fade of a Li-ion Battery • Demonstrates how to use the new Events interface to simulate battery capacity loss during cycling. The battery is switched between constant voltage and constant current operation, both during charge and discharge. Cycleable lithium is lost in the New All-Solid-State negative electrode due to a parasitic lithium/solvent reduction Lithium-Ion Battery reaction. example model.
Electrodeposition Module• Shell Electrode interface – Electrode and Depositing Electrode options for modeling thin electrodes.• Electrode Potential – Give reference electrodes or points for electrode potential.• Moving boundary smoothing – Moving boundary smoothing of Depositing Electrode Surface ensures robust material build-up of thick deposited layers.• Boundary stretch compensation – New boundary stretch compensation for mass conservation Deposition of an inductor coil. The on moving boundaries. geometry includes the extrusion of the• New models deposition pattern into an isolating – Inductor Coil photoresist mask, and a diffusion • Deposition of an inductor coil in 3D with moving mesh. layer on top of the photoresist. – Electrodeposition on a Resistive Patterned Wafer • Copper deposition on a resistive wafer in a cupplater reactor. Shows the benefit of using a current thief for a more uniform deposit thickness. – Superfilling Electrodeposition • Shows that concentration of a surface catalyst is increased due to the area contraction of a moving boundary.
Optimization Module• Time-dependent sensitivity and optimization – Time-dependent sensitivity and optimization is now generally available. – New tutorial example for time-dependent optimization of the nonlinear model equation – This example shows how to find the long- term periodic steady-state solution to a nonlinear time-dependent simulation. The Time-dependent optimization: finding model equation is representative of the long-term periodic steady-state certain plasma simulations but is also solution to a nonlinear time-dependent important in other physics disciplines. simulation. Solving such problems with the time- dependent optimizer can accelerate computations significantly.