[行业软件]Comsol Multiphysics 5.5  Update 3中文 [复制链接]

The COMSOL team has released an update 3 to COMSOL Multiphysics 5.4. This update contains performance and stability improvements to COMSOL Multiphysics, COMSOL Server, and COMSOL Client.
Comsol Multiphysics是一种通用的高级数值建模软件，基于CAD和ECAD，用于建模和模拟基于物理的问题，允许您对基于物理的项目进行详细建模。使用具有模拟功能的专业工具，您将能够轻松计算物理事件，使机械，电气和其他化学品项目准备到最精细的细节，并通过可视化选项提高产品的功能效率。通过这种方式，您将能够在几分钟内创建方程式并设计自己的模型。
COMSOL Multiphysics 5.5.0.359

通过仿真优化和验证现实设备和流程
工程师和科学家们使用COMSOL Multiphysics软件软件来模拟设计，设备和工艺在工程，制造和科研的各个领域。

COMSOL Multiphysics软件是一个模拟平台，涵盖了所有的步骤，在建模工作流程-从定义的几何形状，材料属性，以及描述具体的现象，解决和后处理模型用于生产准确和可信的结果的物理过程。

要创建在专门的应用领域或工程领域使用的模型，你可以增加COMSOL Multiphysics软件与从产品套件的附加模块的任意组合。接口产品还可以将仿真与产品和工艺设计中使用的其他工程和数学软件集成。开发模型后，您甚至可以将其转换为具有专用用户界面的模拟应用程序，该应用程序可以设计用于研发部门以外的人员。
Comsol Multiphysics 5.5 general review

Powerful Parametric Sketching with Dimensions
The Design Module provides a new sketching tool that makes it easy to assign dimensions and constraints to planar drawings for 2D models and 3D work planes.

New Solver Technology for Acoustics Simulations
Ultrasound technology is becoming increasingly important in a wide range of applications spanning from process engineering and nondestructive testing to consumer electronics. New functionality based on the time-explicit discontinuous Galerkin method enables efficient multicore computations of ultrasound propagation in solids and fluids, including realistic materials featuring damping and anisotropy. The method also has low-frequency applications, such as in seismology. The included multiphysics capabilities can seamlessly combine linear elastic wave propagation in a solid and its transition to a fluid as an acoustic pressure wave, and back again. The new elastic wave functionality is available for users of the Structural Mechanics Module, MEMS Module, and Acoustics Module. The fluid-structure acoustics coupling is available in the Acoustics Module.

For frequency-domain simulations, a specialized solver for wave propagation analysis makes it possible to handle higher frequencies (shorter wavelengths) using the finite element method. The new solver can be used to analyze enclosed structures such as that of a car cabin interior as well as other acoustics simulations.

Introducing the Metal Processing Module
The new Metal Processing Module makes metal phase transformation analysis accessible within the COMSOL Multiphysics environment for applications within welding, heat treatment, and metal additive manufacturing.

Introducing the Porous Media Flow Module
The Porous Media Flow Module gives users within, for example, food, pharmaceutical, and biomedical industries a wide range of transport analysis capabilities for porous media. The new add-on product includes functionality for single- and multiphase flow in porous media, drying, and transport in fractures. The flow models cover linear and nonlinear flow in saturated and variably saturated media with special options for slow and fast porous media flows. The multiphysics simulation capabilities are extensive, with functionality that includes options for calculating effective thermal properties for multicomponent systems; poroelasticity; and transport of chemical species in solid, liquid, and gas phases.

Simplified Shape and Topology Optimization with the Optimization Module
Users working with mechanical, acoustics, electromagnetics, heat, fluid, and chemical analysis have been able to perform shape and topology optimization in COMSOL Multiphysics for many years. The Optimization Module now offers simplified setup of shape optimization with new built-in features such as moving boundaries parameterized by polynomials and built-in support for shell thickness optimization. A new smoothing operation for topology optimization ensures higher-quality geometry outputs that can be used for additional analysis and additive manufacturing. COMSOL Multiphysics now has general support for import and export of the additive manufacturing formats PLY and 3MF, in addition to the STL format that is already available.

Nonlinear Shell Analysis, Pipe Mechanics, and Random Vibration Analysis
A wide range of nonlinear analysis options are now available for shells and composite shells, including plasticity, creep, viscoplasticity, viscoelasticity, hyperelasticity, and mechanical contact. The mechanical contact modeling functionality has been extended to support any combination of solids and shells, including solid-shell, solid-composite shell, and membrane-shell. Depending on the type of analysis, these improvements will be available to users of the Structural Mechanics Module, Nonlinear Structural Materials Module, and Composite Materials Module.

For users of the Structural Mechanics Module, a new user interface for pipe mechanics provides functionality to perform stress analysis of pipe systems. The new functionality can handle a variety of pipe cross sections and can include effects from external loads, internal pressure, axial drag forces, and temperature gradients through the pipe wall.
Users of the Structural Mechanics Module can now perform random vibration analysis to study the response to loads that are represented by their power spectral density (PSD).

This allows users to include loads that are random in nature, such as turbulent wind gusts or road-induced vibrations on a vehicle. The loads can be fully correlated, uncorrelated, or have a specific user-given correlation.

The Multibody Dynamics Module provides new functionality for analyzing rigid and elastic chain drives with automatic generation of the large number of links and joints needed for modeling chain drives.

Compressible Euler Flow and Nonisothermal Large Eddy Simulations
Users of the CFD Module will get new interfaces for compressible Euler flow and nonisothermal large eddy simulations (LES). In addition, the flow interfaces for rotating machinery now support the level set and phase field methods as well as Euler–Euler and bubbly flow. The Heat Transfer Module comes with a new interface for lumped thermal systems, an equivalent circuit modeling approach for heat transfer simulations. Radiation in semitransparent (participating) media now supports multiple spectral bands, and a new open boundary formulation for convective flow reduces solution time by 30%.

Multiscale Wave and Ray Optics, Piezoelectric Shells, and PCB Ports
The Ray Optics Module can now be combined with the RF Module or Wave Optics Module for simultaneous full-wave and ray tracing simulations. This enables multiscale modeling, such as analyzing a waveguide beaming into a large room, where using a full-wave simulation would be computationally prohibitive. Combining the AC/DC Module and the Composite Materials Module, users can now analyze layered materials with both dielectric and piezoelectric layers in thin structures. In the RF Module, a set of new ports for vias and transmission lines makes setup much quicker and gives more control to the user for modeling of printed circuit boards.

Efficient Distribution of Standalone Applications
COMSOL Compiler enables you to create standalone applications based on COMSOL Multiphysics models with specialized user interfaces that have been built with the Application Builder. Compiled applications require only COMSOL Runtime — no COMSOL Multiphysics or COMSOL Server license is required. “Since the release of COMSOL Compiler last fall, we have seen great response from our Application Builder users with this new possibility of distributing their applications in standalone form,” said Daniel Ericsson, application product manager at COMSOL. The latest version of COMSOL Compiler has a new compile option for generating minimum-sized files for easier distribution. When the user launches an application for the first time, where the new compile option has been used, COMSOL Runtime is downloaded and installed, if needed, from COMSOL’s website. Only one instance of COMSOL Runtime is needed for applications using the same COMSOL version. COMSOL Runtime has a size of about 350 MB and an application file can be as small as a few MB.

COMSOL Software version 5.5 Update 3 - Released February 25, 2020

All COMSOL software products undergo stability improvements that are introduced as updates. The following list contains the most important improvements in COMSOL version 5.5 update 3 (including those of update 1 and update 2).


Update Detals
COMSOL Multiphysics
- For the PID Controller add-in, the coefficients of the proportional and integral terms have changed signs to conform with standard conventions, and it is no longer necessary to specify units for coefficients or terms with the value 0.
- The system requirements for the license manager have been expanded to now also support Debian 6, Red Hat Enterprise Linux/CentOS 6, and SUSE Enterprise Linux 11.4 and newer.
- Fixed a problem with the evaluation of time derivatives of dependent variables from a different frequency domain solution using the withsol operator during assembling.
- Improved the refresh action of the Application Libraries window.
- Disabled the Run Application button in the Application Libraries window for application previews.
- Upgraded the Tomcat server to version 7.0.99.
- Reduced window padding for applications running in a web browser.
- Pressing the X, Y, or Z key to control rotation in the Graphics window now works on macOS.
- The solver sequence now shows the storage format that will be used when running on a cluster.
- A problem has been fixed where a running COMSOL® instance could lose contact to the license server if the license file was changed on the license server.
- Performance improvements.
- A problem has been fixed in the COMSOL Installer that under certain conditions may cause the uninstallation of a LiveLink for CAD product.
- Removes a risk for client/server connection problems.
COMSOL Compiler
- For standalone applications compiled with the Download option, the download of COMSOL Runtime is more stable.
COMSOL Server
- Upgraded the Tomcat server to version 7.0.99.
AC/DC Module
- Stability improvement of divergence cleaning for boundary coils with symmetry cuts.
- Corrected a problem with the calculation of accurate concatenated flux for boundary coils.
Acoustics Module
- The computation of the arrival time of rays at the Receiver dataset has been improved to give more accurate results for direct sound and for rays that undergo reflections at a boundary near the receiver.
Batteries and Fuel Cells Module
- New electrode material (NMC 811) added to the Batteries & Fuel Cells material library.
CAD Import Module, Design Module and LiveLink Modules for CAD
- The CAD file import functionality has been extended to support new versions for the following file formats:
ACIS (.sat, .sab, .asat, .asab): 2020 1.0
AutoCAD (.dxf, .dwg): 2020
Inventor (.iam, .ipt): 2020
NX (.prt): 1872
SOLIDWORKS (.sldprt, .sldasm): 2020
CFD Module
- Fixed slip velocity definition in the Mixture Model multiphysics coupling for Phase Transport.
- Fixed drag coefficient definition for the Haider–Levenspiel model in the Mixture Model multiphysics coupling for Phase Transport.2
Composite Materials Module
- Extended the number of configurations that are supported for slits in composite materials.
File Import for CATIA V5
- Support has been added to import CATIA V5 (.CATPart, .CATProduct) version 2020 files.
Heat Transfer Module
- For radiation in semitransparent media, wavelength-dependent properties for 2D axisymmetric geometries are now enabled.
- The heat transfer coefficient for a spherical pellet bed in the Local Thermal Nonequilibrium multiphysics interface has been corrected.
- Fixed variables definition on isothermal domain interfaces for coupling with surface-to-surface radiation.
LiveLink for MATLAB
- Exporting animations from MATLAB now works when the server is running on another computer.
Nonlinear Structural Mechanics Module
- You can now compute plasticity in the Shell interface with multiple interfaces. Previously, applying plasticity on several domains associated with different materials generated an error about duplicate variables names.
Optimization Module
- The derivative-free optimization methods now support the Polynomial Boundary shape optimization feature.
Particle Tracing Module
- When using the Massless formulation and enabling out-of-plane degrees of freedom in the Charged Particle Tracing or Particle Tracing for Fluid Flow interfaces, you can now specify the out-of-plane velocity component in the Particle Properties Settings window. Previously, only the in-plane components would be shown.
- Fixed an error where the settings for the lognormal particle diameter distribution did not appear properly in the Release from Data File feature settings.
- Fixed an error in the equation display for the Boundary Load node in the Particle Tracing for Fluid Flow interface.
- Ensured that the acoustophoretic force can get the correct value of the frequency used to compute the acoustic pressure field, even if the frequency domain study for pressure acoustics does not immediately precede the time-dependent study for particle tracing (for example, if they are Study 1 and Study 3 in a model).
- The software now automatically disables the Symmetry node in the Charged Particle Tracing and Particle Tracing for Fluid Flow interfaces if the Massless formulation is used.
- Fixed an error that occurred when selecting an initial particle velocity distribution and then switching the formulation to Massless.
- When using the null collision method for Monte Carlo collision modeling with the Charged Particle Tracing interface, the choice to apply the collisions to only a single species is now respected.
- Fixed an error that occurred when using the options to include rarefaction effects and to specify a particle diameter distribution in the Particle Tracing for Fluid Flow interface.
- Improved the robustness of the Particle Counter and Ray Detector features when used with a parametric sweep over multiple parameter values.
Porous Media Flow Module
- The following additional domain conditions and boundary conditions are now available for the Heat Transfer in Fractures interface with licenses for the Subsurface Flow Module or the Porous Media Flow Module:
. Domains: Heat Source
. Boundaries: Temperature, Heat Flux, Heat Source, and Surface-to-Ambient Radiation
Ray Optics Module
- Fixed an error in the release of diffraction orders from a grating or cross grating when the reflectance or transmittance of a given order (but not both) is exactly zero.
- Fixed an error in the perturbation due to surface roughness for the Illuminated Surface feature in 2D.
- Fixed an error when the Include surface roughness check box was selected in some, but not all, of the Illuminated Surface nodes in a geometrical optics model.
- Fixed a crash when adding a Height attribute to the Optical Aberration plot, while also applying a filter to the rays.
- Adjusted the equation display for the Material Discontinuity node so that the symbols for the transmission and reflection coefficients are more consistent.
- For ray release features that display the total number of rays released in a conical distribution, the number shown is now correctly updated after changing the number of azimuthal or polar angles.
- Fixed an error in the equation display for the Diffraction Order node in the Geometrical Optics interface.
- When releasing rays with one of the conical distributions, Hexapolar or Specify polar and azimuthal distributions, you may now enter zero for the number of polar angles. This will cause a single ray to be released along the cone axis.
RF Module
- Fixed a bug resulting in Polar and Smith plot groups becoming empty when rendered in the web client.
Semiconductor Module
- Fixed an error in 5.5 update 1 that disallows the selection of the WKB tunneling option in Schottky contacts.
- Stability improvement for very rare cases of interference between the Plasma Module and the Semiconductor Module.
Structural Mechanics Module
- Corrected a problem where an error occurred when generating an Eigenfrequency solver sequence. This could happen on some computers if a comma was selected as the decimal separator in the system settings.
- Corrected a problem where the integration in the rms and m operators for random vibration could return erroneous results.


About Comsol Multiphysics 5.4. Its the latest release of its integrated environment for creating physics-based models and simulation applications. Version 5.4 marks the debut of the COMSOL Compiler for creating standalone COMSOL Multiphysics applications. Also new is the Composite Materials module for modeling layered materials.

The new COMSOL Compiler enables simulation specialists to create and distribute standalone executable COMSOL Multiphysics applications. The company explains that neither COMSOL Multiphysics nor a COMSOL Server license are required to run a compiled application. Developers can distribute applications with no further license fees.

The new Composite Materials module provides a dedicated set of modeling tools for working with layered materials. The company adds that by combining the Composite Materials module with new functionality for layered shells available in the COMSOL Heat Transfer and AC/DC modules, users can perform multiphysics analysis such as Joule heating with thermal expansion.

COMSOL Multiphysics version 5.4 also introduces numerous productivity improvements such as the ability to use multiple parameter sets in a model, including parametric sweeping over multiple parameter sets. Users can now also organize Model Builder nodes into groups and assign custom coloring schemes to geometry models. Among the various performance improvements is an updated memory allocation scheme that, the company says, gives several times faster computations in the Windows 7 and 10 operating systems for workstations with more than eight processor cores.

The AC/DC module features a new part library with fully parametric and ready-to-use coils and magnetic cores. The Computational Fluid Dynamics (CFD) module sees added functionality for large eddy simulations (LES) and, according to the company, significantly updated modeling tools for multiphase flow. Fluid flows also see functionality that enable fluid-structure interaction (FSI) for multiphase flow and multibody dynamics.

Electromagnetics enhancements include structural-thermal-optical-performance (STOP) analysis for ray optics. Structural simulations now provide shock response spectrum analyses and offer material activation for additive manufacturing. The Acoustics module sees acoustic ports and a new nonlinear acoustics Westervelt model.

Other version 5.4 highlights include a new topology optimization tool, new lumped models for batteries as well as an updated thermodynamics interface. Heat transfers now features heat radiation with diffuse-specular reflections and semi-transparent surfaces as well as a light-diffusion equation.

In this video, we show you how to model a dipole antenna in the COMSOL Multiphysics software. After watching this video, you will have a solid foundation for creating models of more complex antenna geometries, as the process for building different antenna models is essentially the same.







About COMSOL Inc. 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.

Product: Comsol Multiphysics
Version: 5.5.0 Build 292
Supported Architectures: x64
Website Home Page : www.comsol.com
Language: multilanguage
System Requirements: PC / macOs / Linux *
Supported Operating Systems: *
Size: 4.5 Gb



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Comsol Multiphysics 5.5

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