COMSOL Multiphysics是一款大型的高级数值仿真软件。广泛应用于各个领域的科学研究以及工程计算，被当今世界科学家称为“第一款真正的任意多物理场直接耦合分析软件”。模拟科学和工程领域的各种物理过程，COMSOL Multiphysics以高效的计算性能和杰出的多场双向直接耦合分析能力实现了高度精确的数值仿真。

COMSOL 公司于1986 年在瑞典成立，目前已在全球多个国家和地区成立分公司及办事机构。 COMSOL Multiphysics起源于MATLAB的Toolbox，最初命名为Toolbox 1.0。后来改名为Femlab 1.0（FEM为有限元，LAB是取自于Matlab），这个名字也一直沿用到Femlab 3.1。从2003年3.2a版本开始，正式命名为COMSOL Multiphysics。

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COMSOL Multiphysics以其独特的软件设计理念，成功地实现了任意多物理场、直接、双向实时耦合，在全球领先的数值仿真领域里得到广泛的应用。

在全球各著名高校，COMSOL Multiphysic已经成为教授有限元方法以及多物理场耦合分析的标准工具，在全球500强企业中，COMSOL Multiphysic被视作提升核心竞争力，增强创新能力，加速研发的重要工具。

2006 年 COMSOL Multiphysics再次被NASA技术杂志选为"本年度最佳上榜产品"， NASA技术杂志主编点评到，"当选为 NASA科学家所选出的年度最佳CAE产品的优胜者，表明COMSOL Multiphysics是对工程领域最有价值和意义的产品。"

COMSOL Multiphysics 4.0版本的亮点

1、全新的COMSOL Desktop提供简洁的操作界面，对建模过程的控制和组织更加的简单和方便。

2、模型创建工具可以快速创建模型、求解和可视化后处理，快速访问模型的每一个设置。

3、扩展CAD协同功能：

o LiveLink™ for Pro/ENGINEER®

o LiveLink™ for SolidWorks®

o LiveLink™ for Autodesk® Inventor®

4、扩展CAD导入模块对 Parasolid® 的支持，CAD导入过程中可以对3D几何模型进行操作和修补。

5、支持多参数、多维度实体几何参数扫描。

6、新增求解器：

o 用于频率响应分析和时域分析的模式求解器（常用于结构和声学仿真）。

o 用于电磁场时谐分析的AWE求解器。

o 预定义分析组合：非线性频率响应求解器（常用于小波分析和预应力结构分析）。

o 用于参数评估的非线性最小二乘法求解器。

o 用于集群计算的MUMPS和SPOOLES直接求解器。

7、求解器设置、求解器序列、网格设置和结果可视化等功能得到优化。

8、用户可以对仿真结果多个特征同时进行显示。

9、支持Windows Compute Cluster Server 2003, Windows HPC Server 2008和Linux集群系统。

COMSOL Multiphysics 4.3 with Update 1

COMSOL Multiphysics version 4.3 contains many new functions and additions to the COMSOL product suite. We have strived to achieve backward compatibility with the previous version and to include all functionality that is available there. COMSOL 4.3 is compatible with COMSOL 3.5a, COMSOL 4.0, COMSOL 4.0a, COMSOL 4.1, COMSOL 4.2, and COMSOL 4.2a with a few exceptions.

COMSOL announces the 4.3 release of COMSOL Multiphysics, its industry-leading software environment for modeling and simulating any physics-based system. COMSOL Multiphysics 4.3 empowers engineers, researchers, and scientists with powerful new modeling tools and fast simulations that further establish COMSOL as a leading innovator in simulation for electrical, mechanical, fluid flow, and chemical applications. Major new capabilities introduced in version 4.3 include three new discipline-specific add-on modules, fast and powerful meshing, a new “Double Dogleg” solver for mechanical contact and highly nonlinear simulations, and numerous user-inspired enhancements.

Enhancements and upgraded functionality span the entire COMSOL product suite. With the debut of three new discipline-specific add-on modules – the Nonlinear Structural Materials Module, the Pipe Flow Module, and the Corrosion Module – COMSOL now offers 30 products for the simulation of multiphysics www.renrensucai.com phenomena. The newest modules expand the COMSOL Multiphysics simulation platform with all-new user interfaces that help users solve the unique design challenges in each of these areas accuratel.

User-inspired Developments

COMSOL users played a vital role in developing this new version. Their requests, suggestions, and feedback contributed significantly to the features that were ultimately implemented, making COMSOL Multiphysics 4.3 a true community effort.

The combined talent of COMSOL developers and users not only make this a major release, but many of the requested enhancements further increased the integration of COMSOL Multiphysics with the larger CAE community. For example, core modeling capabilities in version 4.3 have been updated and expanded significantly. Meshing is now both faster and more powerful, particularly when working with virtual geometry operations for shielding the automatic mesher from unnecessary geometric detail. Users working with imported meshes can now group existing mesh elements into new domains and boundaries, which makes it easy to assign boundary conditions and material properties wherever desired.

Users can now run multiple-parameter sweeps with easy specification of one, two, or more parameters – sweeping for all of them or just a subset of them. Visualizations of results from these parameter sweeps can be easily selected to include combinations of the swept parameters in a single presentation. New Cluster Sweep and Batch Sweep user interfaces facilitate defining massively parallel and independent parametric sweeps.

Version 4.3's modules for electrical, mechanical, fluid flow, and chemical simulations have all been updated with exciting new features and capabilities. Responding to multiple requests, COMSOL implemented a user interface within the AC/DC Module for modeling 3D rotating machinery. Users benefiting from this new functionality include those working on applications for generators, brushless motors, radial and axial flux machinery along with brushed DC electric motors.

Users of the Structural Mechanics and MEMS Modules will appreciate a new solver for mechanical contact and highly nonlinear simulations -- the “Double Dogleg” solver. New tools for tagging load cases have also been included for easier setup of extensive structural mechanics studies. The CFD Module introduces new, easy-to-use interfaces and added functionality for mass transport simulations influenced by turbulent mixing, while the Particle Tracing Module now incorporates particle-particle interaction and Brownian forces into its extensive list of supported functionalities.

Nonlinear Structural Materials Module

The new Nonlinear Structural Materials Module augments the mechanical capabilities of the Structural Mechanics and MEMS Modules by adding nonlinear material models. When the mechanical stress in a structure becomes large, certain nonlinearities in the material properties force the user to abandon linear material models. This situation also occurs in some operating conditions, such as high temperature. The new module adds elastoplastic, viscoplastic, creep, and hyperelastic material models. These are based on a new, extended framework for the constitutive laws which users can easily extend for their unique needs.

Pipe Flow Module

The new Pipe Flow Module will interest engineers who design and optimize the pipe and channel networks used in turbines, building ventilation systems, chemical and material manufacture processes, and in the oil and gas industry. The module enables efficient simulations of 1D fluid flow, heat and mass transfer, hydraulic transients, and acoustics. The Pipe Flow Module's simulation results can be integrated into 2D and 3D models of network components, yielding the velocity, pressure variation, and temperature along the pipes and channels in the network.

Corrosion Module

Corrosion is everywhere and is an especially important concern for off-shore structures, ships and submarines, aerospace, and automotive parts. George F Hays, Director General of the World Corrosion Organization, estimates that 3% of the world’s GDP is lost every year due to corrosion.

The new COMSOL Corrosion Module offers specialized user interfaces to model the electrochemical processes that lead to corrosion. Using the Corrosion Module, engineers who want to mitigate these processes can gain powerful insights into how structures might corrode under certain conditions and how structures can be protected. The module includes the physics required to model galvanic, pitting, and crevice corrosion as well as cathodic and anodic protection.

Empowering COMSOL Users with More Speed and New Modeling Tools

COMSOL Multiphysics version 4.3 is a major release. It has been built with the combined knowledge and experience of COMSOL's development teams and hands-on practitioners of modeling and simulation from around the world. With its three new expansion modules, this version also empowers users in major industries for the first time with the innovation potential of an easy-to-use yet powerful multiphysics simulation platform that operates the way they think. COMSOL Multiphysics version 4.3 delivers its users simulation products for boosting engineering efficiency.

For detailed information on COMSOL Multiphysics version 4.3 please visit: this

COMSOL 4.3 Update 1

This update corrects several bugs and stability issues in COMSOL 4.3. We recommend that you reapply the software update after installing new add-on products to an existing COMSOL 4.3 installation.

Update Details

About COMSOL

COMSOL Multiphysics is a software environment for the modeling and simulation of any physics-based system. A particular strength is its ability to account for multiphysics phenomena. Optional modules add discipline-specific tools for mechanical, fluid, electromagnetics, and chemical simulations, as well as CAD interoperability. Founded in 1986, the company has U.S. offices in Burlington, MA, Los Angeles, CA, and Palo Alto, CA. International operations have grown to include offices in the Benelux countries, Denmark, Finland, France, Germany, India, Italy, Norway, Sweden, Switzerland, and the United Kingdom. Independent distributors of COMSOL Multiphysics are located in Australia, China, Egypt, Greece, Hungary, Israel, Japan, Korea, Malaysia, Poland, South Africa, the Czech Republic, Spain, Taiwan, and Turkey.