Comsol multiphysics 43_preview
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Transcript of Comsol multiphysics 43_preview
Highlights of
COMSOL Multiphysics 4.3
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.
COMSOL Multiphysics 4.3 Product Suite
Nonlinear Structural Materials Module
• Description: – Nonlinear Material Models for Structural
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.
Flattening of a pipe
with large strain
elastoplastic
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
drawing tools in COMSOL Multiphysics.
– Add-on to COMSOL Multiphysics.
• Applications: – Hydraulics
– Water distribution systems
– Energy: nuclear, hydropower, geothermal
– Cooling systems in combustion engines and
turbomachinery
– Heating systems
– Chemical process industry such as plant
distribution systems
– Oil refinery pipe systems
– Lubrication
Pipe system for geothermal
heating.
Cooling of a plastic mold of a
steering wheel – including
pipe flow in cooling channels.
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
– Bidirectional couplings can be made between pipes
and 2D and 3D solid or fluid domains, as well as
between flow, heat, and mass applications.
– Pipe cross-sections, automatic transition between
laminar and turbulent flow, surface roughness, and
different friction models.
– Preset options for valves, pumps, elbows, T-junctions.
A reactor simulation for synthesis
of phtalic anhydride under
autothermal conditions using the
Pipe Flow Module together with the
Chemical Reaction Engineering
Module.
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
• Civil-engineering structures
• Chemical process industry equipment
• Automotive parts
• Mechanical structures in aerospace applications
Galvanic corrosion of a
Magnesium Alloy (AE44) - mild
steel couple in brine solution (salt
water). The electrode material
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
format. Office 2007 and 2010 are
supported.
– 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
The report generator now
outputs to Microsoft Word
format, in addition to the
previous HTML format.
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
– Parasolid® R23, R24
– SolidWorks® 2012
This geometry of a lung was imported using
the CAD Import Module. The upgraded
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® and
Creo™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
– Single turn coil excitation.
– Multiturn coil excitation.
– 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.
Automatic coil excitation of a
saddle coil. Arrows and colors
represent the magnetic flux
density (B-field).
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
– User-defined cut plane far field plots
– Directivity calculation
• Dispersive materials – Drude-Lorentz, Debye, Sellmeier
• Porous media
• Transmission line equations
• Many new tutorial examples
Far field plots for 3D,
2D, and 3D cut
planes.
Dispersive
material models. Electromagnetic
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.
• New periodic boundary condition – Dynamic cyclic symmetry and Floquet periodicity condition
for solid mechanics and piezoelectric models.
• New mechanism for load cases – 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.
• Kinetic energy – 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.
Analysis of an
impeller using the
new dynamic cyclic
symmetry boundary
condition.
New tools for load
and constraint
cases.
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 – Deviatoric
– Potential
– User-defined
– Volumetric
Tension cut-off is now
available for soil plasticity
and concrete material
models.
Acoustics Module
Transfer impedance, microphone
response, and sound pressure
level (SPL) of a generic ear canal
coupler.
• 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
– New low-reflecting boundary for time and frequency domain
simulations.
• New Models
– Porous absorber
– Condenser microphone
– Generic 711 coupler, occluded ear canal simulator
– Acoustic scattering off an ellipsoid
MEMS Module
A piezoresistive pressure sensor
simulation showing stress-induced
potential difference produced by a four
terminal piezoresistor when the
membrane in which it is embedded is
deformed by an applied pressure.
• Piezoresistivity user interfaces – 3 new user interfaces for piezoresistivity in shells,
domains, or with boundary currents.
– Piezoresistive material library for single crystal and
polycrystaline p- and n-doped Silicon.
• S-parameter calculations – Compute S-parameters for piezoelectric, electric, and
electromechanical devices.
• 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
condition for solid mechanics and piezoelectric models.
A capacitive pressure sensor simulated
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
interface increases both accuracy and
stability.
A baffled turbulent mixer
simulation using the new
Turbulent Mixing user interface.
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
– Now separate boundary conditions with enhanced graphical
support which shows the intended flow direction during physics
set up.
The External Radiation Source
settings for the new Solar position
option. The solar irradiation
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
based inlet boundary conditions and shows how
the concentration dependent viscosity affects
the velocity profile.
A controlled diffusion micromixer
simulation with a concentration
dependent viscosity.
Plasma Module
Plasma Enhanced Chemical Vapor
Deposition (PECVD) simulation in
the Plasma Module. Shown is the
magnetic flux density in the plasma
as well as the accumulated growth
height of Silicon.
• 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
chemistry.
• Improved handling of cathode fall region in DC
discharges with mesh control edges.
• 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
Animation: Particle-particle
interaction illustrating
gravitational attraction.
Animation: Secondary emission of
particles in the oscillating
electromagnetic field of a schematic
multipactor. Visualization with new
comet tail plot.
• New built-in forces
– Brownian, thermophoretic, magnetophoretic, and Schiller-
Naumann drag force.
• Particle-particle interaction
– For continuously acting forces: Coloumb, Lennard-Jones,
and user defined.
• 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).
• Distribution functions for auxiliary dependent
variables
– Allows for mass and size distributions of particles.
Chemical Reaction Engineering Module
Dissociation in a Tubular Reactor:
Irreversible dissociation reaction of a species.
As the reactant is consumed, the
concentration in the gas phase increases,
which leads to an expansion of the gas
mixture, and an acceleration in the flow field.
• 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 – Uniform scaling of concentration variables improves greatly the
solver performance for models with many chemical species.
• New models – Protein adsorption
– 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
– Electrode, Depositing Electrode, and Corroding Electrode
options for modeling thin electrodes.
• Electrode Potential
– 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
negative electrode due to a parasitic lithium/solvent reduction
reaction.
New separator domain
property for Lithium-Ion Battery
and Battery with Binary
Electrolyte interfaces.
New All-Solid-State
Lithium-Ion Battery
example model.
Electrodeposition Module
Deposition of an inductor coil. The
geometry includes the extrusion of the
deposition pattern into an isolating
photoresist mask, and a diffusion
layer on top of the photoresist.
• 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
on moving boundaries.
• New models
– Inductor Coil
• Deposition of an inductor coil in 3D with moving mesh.
– 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
model equation is representative of
certain plasma simulations but is also
important in other physics disciplines.
Solving such problems with the time-
dependent optimizer can accelerate
computations significantly.
Time-dependent optimization: finding
the long-term periodic steady-state
solution to a nonlinear time-dependent
simulation.
Enjoy!