Comsol Multiphysics 5.4 Update 2

The Comsol team has introduce an update 2 of latest release of COMSOL Multiphysics. The last version 5.4 includes two new products provides performance improvements and additional modeling tools.
All COMSOL software products undergo stability improvements that are introduced as updates. The following list contains the most important improvements in COMSOL version 5.4 update 2 (including those of update 1).
- Fixed an issue with radio buttons being unresponsive in the Model Builder for macOS.
- Fixed an issue where applications would fail to launch on long running instances.
- Improved the implementation so that report file paths supplied by the user during method calls are stored in the model.
- Made performance improvements for long parametric sweeps.
- Fixed a problem where file resources could be lost when computing in the Test Application window.
- Made various stability and performance improvements.
- Fixed an issue with the COMSOL Server installer on localized Windows versions.
- Fixed an issue where replaced applications failed to launch on secondary servers.
- Implemented more robust handling of server-side network timeouts.
- Renamed the Executable button and the corresponding Settings window to Compiler.
- Renamed the Compile button, used for compiling applications, to Create Executable.
- Added sensitivity analysis support to the Terminal feature, applicable to the Electric Currents, Electrostatics, Electrostatics, Boundary Elements, and Magnetic and Electric Fields interfaces.
- Made various usability improvements.
- Corrected the global postprocessing variables generated by the Port condition in 2D axisymmetric models.
- Fixed an issue when only one frequency was used in a study together with the Port Sweep functionality.
- Corrected the density and viscosity used for the Inlet boundary condition in the Darcy's Law interface when used with the Multiphase Flow in Porous Media multiphysics coupling node.
- Corrected the implementation for the use of multiple Mass Source nodes in the Phase Transport interface.
- Made various stability improvements.
- Corrected the heat capacity ratio (Cp/Cv) function from the Thermodynamics interface.
- Fixed a problem where, in the Layered Shell interface, spurious stresses could appear in elements with large variations in normal orientation. This issue, which could occur for imported meshes or together with virtual geometry operations, is now fixed.
- Improved the implementation so that the vertical faces are now included in boundary net selections for drill layers in ODB++ files.
- Fixed the isobaric compressibility coefficient definition when user-defined density is used.1
- Fixed moving mesh support in the shell features.1
- Enabled Surface-to-Surface Radiation multiphysics coupling for the Slip Flow and High Mach Number Flow interfaces.1
- Corrected the expression for Zmean (mean figure of merit) in the Thermoelectric Effect multiphysics coupling.1
- Fixed the out-of-plane thickness contribution to heat flux interface features in 2D geometries.1
- Corrected diffusive heat flux postprocessing variables definition when employing the Heat Transfer with Radiative Beam in Absorbing Media multiphysics coupling.
- Corrected the ambient temperature definition in the Ambient Thermal Properties node when the Temperature list is set to either User-defined coefficient for deviation or User-defined correction.
- Corrected coefficients of a few Legendre polynomials of order higher than 4.
- Fixed out-of-plane thickness to unity and disabled out-of-plane features when a multiphysics coupling involving a radiation interface is active.
- Fixed out-of-plane thickness contribution for turbulent nonisothermal flow with wall functions or automatic wall treatment.
- Fixed the Opaque Surface feature for the Radiative Beam in Absorbing Media interface.
- Fixed density definition in the Phase Change Material node when it is used under the Solid feature with a moving mesh.
- Removed redundant selection filter in the postprocessing dataset of a layered material in order to obtain more concise models.
- Defined overriding between the Irreversible Transformation and Phase Change Material subfeatures.
- Fixed an issue with the mass flow rate definition in the Interior Fan feature.
- Fixed the definition of energy balance postprocessing variables in cases with a multiphysics coupling defining heat sources on boundaries.
- Fixed the thermal conductivity definition in the Phase Change Material node when it is used under the Solid feature with a moving mesh.
- Fixed a migration issue for models containing Heat Transfer with Radiation in Participating Media interfaces built in version 5.3a and earlier.
- Updated the thermal conductivity definition when different material properties are specified for the damaged tissue in the Thermal Damage subfeature.
- Canceled contribution of work done by pressure changes for incompressible flow with Boussinesq approximation for the Nonisothermal Flow interface.
- Removed the possibility to define an out-of-plane thickness in heat transfer interfaces in 1D, 2D, and 2D axisymmetric geometries when heat transfer is coupled with a radiation interface.
- Added display of the radiation direction in the Prescribed Radiosity feature.
- Added functionality so that the LiveLink interface and the embedded one-window simulation environment now support SOLIDWORKS 2019.
- Corrected an error in the Souza-Auricchio model for shape memory alloys.
- Corrected a problem when a user-defined creep law was created using a Potential in the Creep node. In previous versions, a factor of two was applied to the off-diagonal terms in the potential expression in order to account for the symmetry in the stress tensor. This factor was based on the assumption that the potential expression was written in terms of only the upper-diagonal parts of the stress tensor. With this update, the potential is assumed to be written on a standard form, so that the shear strain rates are directly computed as the derivative of the potential with respect to corresponding stress tensor element.
- Fixed a problem so that the Heat Source, Convective Heat Losses, and Radiative Heat Losses features for the Particle Tracing for Fluid Flow interface now respect domain selections.
- Improved handling of diffuse scattering or emission of particles or rays from interior boundaries.
- Corrected the coefficient in the Saffman lift force to account for a corrigendum to the original Saffman paper.
- Added auxiliary dependent variables on particles to the Add/Replace Expression menu during results processing.
- Made improvements so that Pipe Connection features in old models that use the Nonisothermal Pipe Flow interface will import as is, with a warning that the feature is obsolete and will be removed in future versions.
- Changed the functionality so that the Boltzmann Equation, Two-Term Approximation interface is now only available in 0D components. The old version, which was available in 1D, is now retired. Existing models using the 1D version of the interface can still be opened and modified.
- Implemented additional safeguard against division by zero errors when using the Ray Termination feature.
- Improved the functionality to set automatically the frequency model input for refractive indices that depend on ray frequency or wavelength. If you had previously set the model input manually, for example to comp1.gop.f0, then, after updating, go to Common Model Inputs, right-click Frequency (Hz) -minput.freq and choose Reset to Default.
- Corrected the equation display for Poisson's equation in the Semiconductor interface.
- Fixed an error that could occur when adding Adhesion in a Solid Mechanics interface that already contains a Plasticity node.
- Fixed an error that could occur when using Compact History in a model containing a Solid-Beam Connection multiphysics coupling.
- Improved performance for postprocessing with Shell datasets.
- Corrected an error occurring during the generation of default solver sequences for multiphysics models that contain a Damage node in the Solid Mechanics interface.
- Included losses from the Thin-Film Damping feature when computing power dissipation and quality factor in the Solid Mechanics interface.
- Made stability improvements.
- Corrected the definition of the Permeability and Kozeny-Carman formulation for Richards' equation to use the relative permeability for calculating the transmissibility.
- Corrected velocity contribution due to gravity with specified acceleration for the Fracture Flow feature.
COMSOL has announced the latest version of COMSOL Multiphysics: version 5.4. The release comes with two new products, COMSOL Compiler and the Composite Materials Module, along with performance improvements and additional modeling tools.
COMSOL Compiler is an interesting new product that plays to the efforts to democratize simulation. It allows users to create standalone COMSOL Multiphysics applications, which can run without COMSOL Multiphysics or a COMSOL Server license. In addition, the latest version of the COMSOL Multiphysics software brings enhanced usability and new physics-specific modeling features, as well as the new Composite Materials Module for modeling thin, layered structures.
COMSOL is a global provider of simulation software for product design and research to technical enterprises, research labs, and universities. Its COMSOL Multiphysics product is an integrated software environment for creating physics-based models and simulation applications. A particular strength is its ability to account for coupled or multiphysics phenomena. Add-on products expand the simulation platform for electromagnetics, structural, acoustics, fluid flow, heat transfer, and chemical applications. Interfacing tools enable the integration of COMSOL Multiphysics simulations with all major technical computing and CAD tools on the CAE market. Simulation experts rely on COMSOL Server to deploy applications to their design teams, manufacturing departments, test laboratories, and customers throughout the world. Founded in 1986, COMSOL has 19 offices worldwide and extends its reach with a network of distributors.
Comsol Multiphysics
5.4 Update 2 (Build 295)
x64

english
PC / MacOsx / Linux
*
4.4 Gb

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