Comsol Multiphysics 5.3.1.275 (03 May 2018)

COMSOL, the leading provider of multiphysics modeling and simulation software, has released an updated COMSOL Multiphysics 5.3 software, is a general-purpose software platform, based on advanced numerical methods, for modeling and simulating physics-based problems.


All COMSOL software products undergo stability improvements that are introduced as updates. The following list contains the most important improvements in COMSOL version 5.3a update 3 (including those of update 1 and 2).

COMSOL SOFTWARE VERSION 5.3a UPDATE 3 - Released May 3, 2018:

COMSOL Multiphysics
- Corrected an issue where running Client-Server with a Floating Network License (FNL) would consume too many licenses or give an error message.
- Fixed a license problem affecting COMSOL Multiphysics for some cluster configurations.
- Improved the default plots for the PDE, Boundary Elements interface.
- Fixed a problem with highlighting of search results in the Documentation window.
- Corrected an issue that made it impossible to copy and paste text from the Help window in the COMSOL Desktop environment.
- Added the Moving Mesh node, available as a subnode to Component > Definitions, to the model tree when selecting Modify model configuration for a study step. The available options are: Solve for and Disable in solvers.
- Improved handling of the Prescribed Normal Mesh Velocity boundary conditions on deforming domains. The change makes domain volume changes consistent with the prescribed normal velocity.
- Increased robustness for Deforming Domain features. The default mesh smoothing method has changed from Laplace to Yeoh. The Yeoh method is more robust at a small additional computational cost.
- Moving Mesh nodes, added under Definitions > Moving Mesh, now include an Override section that contains information about how such nodes override each other. It is also possible to move such nodes and to copy and paste them.
- Added the capability for PDE-based Mathematics interfaces to be active on domains that are part of an Absorbing Layer feature.
- Corrected a problem with Geometry selections so that those that are dependent on a parameter maintain the same dependence when used under Results.
- Fixed a problem with using Function Switch nodes that accessed file resources.
- Corrected user-defined model inputs so that they now show all components instead of only the in-plane components.
- Fixed a problem with search parameters in the Application Libraries window.
- Japanese-language versions of the Software License Agreement and the Introduction to COMSOL Multiphysics PDF documents are now made available when installing the software in Japanese.
- Improved search functionality in the Application Library window. You can now search using strings such as @dataset, @numerical, @export, and @report in order to search explicitly for models and applications that contain a specific type of data set, for example.
- Improved accuracy of ray interactions with moving boundaries when the geometry shape order is greater than 13.
- Improved the performance of postprocessing integration where the integrated expressions contain the with or withsol operators.
- Fixed an issue with unintended reset of the preference settings when switching to software rendering.
- Fixed an issue with the Snap to Grid feature so that it now works as expected when drawing and moving 2D geometry objects.
- Corrected an issue with a stress tensor component that occurred when using the External Stress-Strain Relation feature in the Solid Mechanics interface together with an External Material feature of the type General Stress-Deformation. The issue was that the stress tensor component solid.S13 could appear as an undefined variable. This update makes it possible to reference both of the stress tensor component variables solid.S13 and solid.S31.
- Improved performance in some cases for physics-controlled boundary layer meshing.
COMSOL Server
- Improved the alignment of custom thumbnails in the COMSOL Server Application Library page.
- Fixed an issue when uploading apps larger than 4 GB.
Acoustics Module
- Corrected an issue with the Wall condition so that Rayleigh roughness can be used in combination with a user-defined absorption coefficient.
- Fixed a problem with the definition of the fluid bulk modulus postprocessing variable in the Poroelastic Waves interface.
CAD Import Module
- Fixed a problem where the automatic check-in of the CADREADER license file feature was delayed in some environments. The CADREADER license file feature enables the ability to import CAD data files in the CAD-interfacing products.
CFD Module
- Corrected a problem with the shape function order for certain Bubbly Flow variables when used in combination with P2+P2 and P3+P3 elements.
- Corrected a few problems that could occur when using phase-specific turbulence models and the Euler-Euler interface.
- Fixed a problem with the Interior Fan condition for the Reacting Flow multiphysics coupling.
- Fixed a problem with the Interior Fan and Screen conditions for turbulent nonisothermal flow models.
- Added support for the Stokes flow property in the Electrodeposition Module.
Chemical Reaction Engineering Module
- Corrected definitions of (partial molar) species properties used in the Chemistry and Reaction Engineering interfaces when coupled to the Thermodynamics interface. Updated evaluation and display of results for the Membrane Dialysis example app.
- Corrected the reaction rate constant for surface reactions imported from the CHEMKIN software.
Electrochemistry Module
- Improved the default plots for the Primary Current Distribution interface.
- Corrected a sign error in the potential shift for models using an Ion-Exchange Membrane Boundary node.
ECAD Module
- Fixed a problem that prevented layers whose elements have no datatype set to be recognized during the import of GDS files.
Fatigue Module
- Corrected a problem where the Matrix Histogram plots were not generated for a Cumulative Damage interface.
Heat Transfer Module
- Added missing support for the new stabilization version in time-dependent studies for the Conjugate Heat Transfer multiphysics interface.
- Corrected Periodic and Continuity conditions for radiative intensity for P1 and the Rosseland approximation.
- Fixed handling of the out-of-plane thickness for the migration of the Inflow Heat Flux feature.
- Added missing user input for thickness in the Thin Layer feature when the Thermally thick approximation is selected together with the Thermal resistance option.
- Corrected the Opaque surface boundary option in the Slip Flow physics interface when the Radiation in participating media option is enabled.
- Corrected the stabilization formulation for the Radiative Beam in Absorbing Media interface.
- Swapped the meaning of what is up and down in the geometry of the Continuous Casting tutorial model to achieve a more realistic rendering.
- Updated the Circular Tube tutorial model to use the Inflow condition at the inlet.
- Added comparison with theoretical values in the Nonisothermal Turbulent Flow over a Flat Plate tutorial model.
- Fixed a problem with the stabilization formulation for models where a Translational Motion feature is combined with a user-defined coordinate system.
- Corrected the temperature dependency for general thin layers material.
- Added support for multiple instances of the Medium Properties feature in the Radiative Beam in Absorbing Media physics interface.
- Corrected an issue with the pair Continuity feature so that it now supports identity pairs with a boundary that is part of both the source selection and the destination selection.
- Fixed a problem with the Heat Continuity feature for moving mesh.
- Fixed a problem with the Moist Air Fluid type in the Thin Film and Fracture features.
- Fixed a problem with the numerical stabilization implementation for general thin films.
- Fixed a problem with the energy flux definition in thermal shells.
- Added the rhoref variable in the Phase Change Material and Moist Air features.
- Fixed an error in the formulation for the Screen feature when used in conjunction with the Nonisothermal Flow or Conjugate Heat Transfer interfaces.
LiveLink for Inventor
- Fixed an issue that in some cases prevented objects with visibility turned off to be excluded from synchronization.
- Fixed an issue that in some cases prevented faces in a selection from being transferred during synchronization.
- Fixed an issue with the synchronization of assemblies with unresolved and excluded components.
- Fixed an issue that in some cases prevented selections defined in a component to be loaded into an assembly.
LiveLink for MATLAB
- Fixed an issue with mphsave on Windows operating systems that prevented saving a file to an unmapped network drive.
- Fixed a problem with mphplot that prevented older versions of the MATLAB software to work with COMSOL Multiphysics software version 5.3a.
LiveLink for Revit
- Fixed a problem related to installing the LiveLink for Revit product on a Chinese-language operating system.
LiveLink for SOLIDWORKS
- Improved performance when opening a file that contains selections with a large number of entities in the selection.
- Fixed an issue that in some cases prevented selections defined in a part to be loaded into the assembly.
- Added support for creating selections of Surface features, for example, Surface-Loft.
- Fixed an issue with creating selections that contain certain assembly features, for example, Cut-Extrude.
- Fixed an issue that prevented material selection to be generated during synchronization of curve objects.
Microfluidics Module
- Improved results, stabilization, and convergence of the Free Surface feature. The necessary compensations to the Surface Tension force in the Contact Angle feature have been added.
Nonlinear Structural Mechanics Module
- Corrected an error in the Storakers hyperelastic material model.
Optimization Module
- Fixed a problem that made it impossible to solve optimization models that have no physics-based study step.
Particle Tracing Module
- Fixed an error that occurred when using secondary particle emission and the Continuous Random Walk drag model in 2D without out-of-plane degrees of freedom.
Plasma Module
- Corrected links to context-sensitive help for the Plasma, Time Periodic interface.
- Fixed an issue with the electric potential for certain boundary conditions in the Plasma Module. In the Plasma, Time Periodic interface, for axisymmetric models, the Time Periodic to Time Dependent study now produces the same electric potential for the Metal Contact and Terminal features as the Time Periodic study.
Ray Optics Module
- Corrected some transformations of the Stokes parameters and phase when tracing polarized rays through a graded-index medium.
- Fixed an error that occurred when the Illuminated Surface feature was used to release rays into an adjacent domain with a complex-valued refractive index.
Rotordynamics Module
- Corrected an error in the computation of axial force in the Radial Roller Bearing feature.
Semiconductor Module
- Added support for including a Perfectly Matched Layer feature in a model containing a Schrödinger Equation interface with only a Semiconductor Module license.
Structural Mechanics Module
- Improved the Membrane interface formulation for cases where an additive strain decomposition was selected in a geometrically nonlinear study. A nonlinear strain formulation is now used instead of a previous linear strain formulation.
- Corrected an "Undefined Variable" error in the Thin Film Damping interface.
- Added support for generalized plane strain when combining piezoelectric and linear elastic materials.
- Corrected some problems that would occur when using friction in a Bolt Thread Contact feature.
- Corrected an error that occurred when using the Thermal Expansion feature with the Tangent coefficient of thermal expansion option.
Subsurface Flow Module
- Fixed an issue when plotting results in the Two-Phase Flow Experiment app available with the Subsurface Flow Module.

About Comsol Multiphysics. You can use COMSOL Multiphysics and the suite of add-on products for any combination of electrical, mechanical, fluid flow, or chemical applications. The software lets you simulate any physics-based system that can be described with partial differential equations (PDEs). Version 5.3 provides simulation specialists with notable performance improvements and powerful app design and deployment capabilities with new modeling and development tools, solvers, and user-driven features. In many cases, users will experience a speedup of ten times or more in software responsiveness, such as in preprocessing tasks for handling models with several thousand boundaries and domains. With version 5.3 the boundary element method (BEM) is available for modeling electrostatics and corrosion effects. The Boundary Element method enables users to simulate models with infinite domains and voids, as well as to quickly set up simulations that combine wires, beams, surfaces, and solids in the same model. Typical uses for this functionality include the modeling of electrical cathodic protection, cables, or capacitive sensors. The algebraic multigrid (AMG) solver allows for solving large fluid flow problems with a single mesh level. The simulation process is more robust for problems such as fluid-structure interaction in a solar panel. Users handling large CFD models will benefit from the new algebraic multigrid (AMG) solver implemented in version 5.3. The AMG solver requires only a single mesh level and is now the default option for many fluid flow and transport phenomena interfaces. Users modeling turbulent flows can benefit from more robust computations with the automatic treatment of walls. This feature blends high-fidelity low-Reynolds formulation with wall functions. A Powerful Suite of Development Tools for Increased Productivity: The Model Builder now more rapidly handles geometry and mesh operations for models with large arrays and complicated solid operations in 3D. A new option for automatic geometry defeaturing through virtual geometry operations is now available to users. With the introduction of model methods in version 5.3, it is easy to automate repetitive operations directly in the Model Builder. The Application Libraries feature more than 50 new and updated tutorial models, allowing users to quickly adopt new features, tools, and modeling techniques. The tutorials span several areas, from permanent magnet motors, cables, and horn antennas, to supersonic flows, electronics cooling, and vibration and noise in a gearbox. More Functionality for App Design and Deployment: The Application Builder allows simulation specialists to create apps based on their multiphysics models. The app interface can be easily customized and accessed via a browser or a Windows client, which connects to a local installation of COMSOL Server. Updates to COMSOL Server include comprehensive log files for user activity as well as a centralized cluster administration setting in the COMSOL Server web interface for easy setup of running apps on clusters. In the Application Builder, app designers can now define customized actions when clicking on plots in graphics objects, enabling the easy creation of interactive apps.

About COMSOL Inc. COMSOL, Inc., a high tech engineering software company, provides software solutions for modeling and simulation of real world multiphysics systems. It offers COMSOL Desktop graphical user interface, a set of predefined user interfaces with associated modeling tools; and electrical, mechanical, fluid, chemical, multipurpose, and interfacing modules. The company serves engineers, researchers, and lecturers working for technical enterprises, manufacturing departments, research labs, and universities. COMSOL, Inc. was founded in 1986 and is based in Burlington, Massachusetts. COMSOL, Inc. operates as a subsidiary of COMSOL AB.

Product: Comsol Multiphysics
Version: 5.3a Build 275 (03 May 2018)
Supported Architectures: x64
Website Home Page :

Code:

http://www.comsol.com

Language: english
System Requirements: PC / MacOsx / Linux
Supported Operating Systems: [You must be registered and logged in to see this link.]
Size: 4.2 Gb