COMSOL Multiphysics

• COMSOL now supports Simplified Chinese as one of the languages that you can choose to localize the COMSOL Desktop environment.
• A Deselect Box button is now available to deselect (clear) all selections inside a rubberband box.
• Improved stability and GUI performance.
• Support for system fonts now works correctly.
• Improved support for running COMSOL on computers with non-Latin usernames.
• The convergence plot is now correct when using the double dogleg solver in a continuation sweep.
• Plot while solving now updates only on the innermost study level.
• The unit for Planck's constant (a predefined physical constant) now displays correctly.
• New strings are available to distinguish "second" meanings in local languages: order (second is between first and third) versus time unit (a second is one 60th of a minute).
• Corrected unit of measurement of inward flow condition in non-3D models using Transport of Diluted Species.
• Keyboard accelerators now work correctly when running COMSOL on Ubuntu 12.04.
• The eigenvalue solver now gives a warning if not all eigenvalues are found.
• Reuse solution for previous step now works correctly for auxiliary sweeps of linear iterative solvers.
• Disabled study steps are now shown with the correct indentation in the model tree.
• The Time-explicit solver now correctly stores the solution at converged time steps if there is an error.
• Plot while solving now works correctly when running from the API with a graphics server.
• Settings window sections can now be expanded and collapsed using arrow keys in the Windows version of the COMSOL Desktop.
• It is now possible to update model libraries also after choosing not to install models during the initial software installation.
• Changing the order of table entries now works correctly when defining polygons using tables.

AC/DC Module

• External Current Density will no longer be applicable together with E-J characteristic.
• Several GUI stability improvements.
• The Thin low permittivity gap condition now works together with a moving mesh.

Acoustics Module

• Several GUI stability improvements.

CFD Module

• The unit of the drag coefficient in the Euler-Euler Model interface is now correct.
• Performance improvements for Reacting Flow, low-Re k-epsilon.
• Stability improvements for some analyses in Spallart-Allmaras turbulence model.
• Stability improvements for Wire gauze.
• Stability impovement for Laminar outflow conditions for some solver selections.

Chemical Reaction Engineering Module

• Corrected unit of measurement of the Equilibrium Constant in the Reaction Engineering interface.
• CHEMKIN kinetic data import corrected for third-body reactions.
• Several GUI stability improvements.

Electrochemistry Module

• Stability improvements to moving boundary problems in 2D axisymmetric models.

Fatigue Module

• The elastic solution with notch assumption in the strain-based fatigue has been corrected. A distinction between tensile and compressive stresses is now made.

Heat Transfer Module

• Discontinuous (default) and continuous Lagrange elements are now available for damage integral dependent variables discretization.
• Variable definition for boundary heat source variable is now synchronized with the user input.
• Use of prefix in variables names now prevents duplicate variable names when multiple pair temperature continuity conditions are active on the same boundary.
• Duplicate plot groups in postprocessing menus have been removed.
• Saturation pressure computation is more accurate, especially for temperatures far from 100 °C.
• Corrected revolution angles in the default plot of the 2D axisymmetric version of Heat Transfer in Thin Shells.

MEMS Module

• Modified the material properties of Quartz to include both right- and left-handed properties defined according to the two commonly used standards.
• Corrected a problem which caused pressure follower loads to be applied in the wrong direction in some circumstances within the Electromechanics interface.
• Fixed an issue with the expression for the time averaged heat source variable created by the Thermoelasticity interface.

Molecular Flow Module

• It is now possible to apply the Number Density Reconstruction feature to Axial Symmetry boundaries.

Optimization Module

• The BOBYQA optimization solver now correctly disregards unsupported constraints.
• The BOBYQA optimization solver now respects the setting for maximum number of simultaneous function evaluations also for the initial evaluation.
• The handling of axisymmetric or renamed coordinates with the Least-squares optimization objective has been corrected.

Particle Tracing Module

• The Coulomb and Lennard-Jones Particle-particle interaction forces now take into account the out-of-plane position when the Include out-of-plane degrees of freedom property is active.
• The equation display for the Monte Carlo collision model option in the Elastic Collision Force has been corrected.
• The out-of-plane velocity now correctly takes into account changes in the particle mass when the Include out-of-plane degrees of freedom property is active.
• The out-of-plane particle velocity is now updated correctly when the Include out-of-plane degrees of freedom property is active and the Bounce option is used in the Wall boundary condition.
• Field-dependent forces can now be assigned to a subset of domains.
• Equation display for normal Inlet velocity is now correct.

Pipe Flow Module

• Pumps, bends, and valves in the Pipe Flow Module now work with moving meshes.
• Corrected problem with when adding wall layers to rectangular pipe shapes.

Plasma Module

• Importing a Chemkin thermo or transport file now works correctly in the Plasma Module physics interfaces.
• Units for the forward rate constant in the Electron impact reaction and Reaction features are now correct.

RF Module

• Second-order scattering boundary condition can now be used in 2D axisymmetry.
• Stability and accuracy improvements.

Semiconductor Module

• Fixed an issue with certain options for the initial conditions when the Semiconductor interface is coupled to the Heat Transfer in Solids interface.
• Corrected the variable displayed next to the user input for the Relative Acceptor Energy for the Incomplete Ionization settings in the Semiconductor Material Model node.
• Improved the smoothing settings for 1D default plots.
• Nonfunctional user inputs in the User Defined Recombination feature no longer appear in the user interface.

Structural Mechanics Module

• It is now possible to model friction together with rigid domains.
• Using rigid connectors in a Shell interface now works as expected also if the model contains a Solid Mechanics interface.
• When using a Rigid Connector with a Mass and Moment of Inertia subnode in the Shell interface, generation of the solver sequence could fail for a Transient solver.
• Coriolis forces in frequency domain analysis have been corrected.

ECAD Import Module

• Fixes issue with parsing of certain ODB++ archives.
• Fixes issue with decompression of certain ODB++ archives.

LiveLink™ for Excel®

• The LiveLink add-in is now correctly installed for 64-bit version of Excel.
• The LiveLink add-in can now be loaded by 64-bit Click-to-Run version of Excel 2013.
• Materials with uppercase letters now appear correctly in the Material Browser after export from an Excel spreadsheet.
• The correct unit is now displayed for stress tensor in the settings for material export.
• Material property names are now used to generate the function names for field-dependent material properties.
• Several stability improvements.

LiveLink™ for SolidWorks®

• Fixes problem with disappearing COMSOL Multiphysics tab in SolidWorks after de-activating and re-activating the LiveLink add-in.
• Several stability improvements and corrections for the bidirectional and the One Window interfaces.

LiveLink™ for Inventor®

• Selections for materials are now synchronized for surface bodies in assembly components.
• Assemblies with surface bodies in components are now synchronized.
• Selections for materials are now synchronized for surface bodies in part files.
• Fixes problem with unloading of certain add-ins when loaded in Inventor at the same time as the LiveLink add-in.
• Several stability improvements and corrections for the bidirectional and the One Window interfaces.