COMSOL Multiphysics

1. COMSOL Multiphysics

2. What is COMSOL Multiphysics?

3. COMSOL • COMSOL Multiphysics is a finite element analysis, solver and simulation software / FEA software package for various physics and engineering applications, especially coupled phenomena, or multiphysics. • COMSOL Multiphysics also offers an extensive interface to MATLAB and its toolboxes for a large variety of programming, preprocessing and postprocessingpossibilities. • The packages are cross-platform (Windows, Mac, Linux). • In addition to conventional physics-based user interfaces, COMSOL Multiphysics also allows for entering coupled systems of partial differential equations (PDEs). • The physics-based modules augment the core physics interfaces of COMSOL Multiphysics and provide additional physics interfaces for electrical, mechanical, fluid flow, and chemical applications.

4. Composition of COMSOL • COMSOL Multiphysics • Electrical applications: AC/DC, RF, Wave Optics, MEMS, Plasma, and Semiconductor Module • Mechanical applications: Heat Transfer, Structural Mechanics, Nonlinear Structural Materials, Geomechanics, Fatigue, Multibody Dynamics, and Acoustics Module • Fluid flow applications: CFD, Mixer, Microfluidics, Subsurface Flow, Pipe Flow, and Molecular Flow Module • Chemical applications: Chemical Reaction Engineering, Batteries & Fuel Cells, Electrodeposition, Corrosion, and Electrochemistry Module • Multipurpose applications:Optimization, Material Library, and Particle Tracing Module • Interfacing applications: LiveLink™ for MATLAB®, CAD Import Module, LiveLink™ for SolidWorks®, LiveLink™ for Inventor®, LiveLink™ for Creo™ Parametric, LiveLink™ for Solid Edge®, LiveLink™ for Excel®, ECAD Import Module, LiveLink™ for SpaceClaim®, LiveLink™ for AutoCAD®, LiveLink™ for Pro/ENGINEER®, and File Import for CATIA® V5

5. Expiry date of COMSOL Multiphysics August 31th, 2014

6. Renewal of COMSOL Multiphysics • Every a year, renewal of COMSOL Multiphysics is necessary. Normally, renewal price is 20% of first purchasing. • Firstly, please get the quotation from ALTSOFT designated by COMSOL Inc.. If you want to contact this company and phone number, please click following link. (http://www.altsoft.co.kr) • Sometimes, specific module can be purchased inexpensively. That’s why when you request new quotation, asking price of each modulesevery a year in detail. • Technical Support: Applying technical support during a year from renewal date • Warranty: Applying complimentary update of new version during a year from renewal date • Warning : When receiving upgrade and renewing after expiry date, additionally period retroactivity and restart fee (15% of first purchasing) will be charged. • After completing subscription period, subscription renewal should be preceded for license change or reissue.

7. COMSOL Multiphysics • User Interfaces for Modeling and Simulation • Physics and Equation-Based Modeling Interfaces • Using COMSOL Multiphysics provides you with a significant amount of physics modeling functionality, including multiphysics ability. By adding application-specific modules, the modeling power is increased with dedicated tools for electrical, mechanical, fluid flow, and chemical applications. • Coordinate Systems • Users enjoy the ability to define any number of local coordinate systems. There are shortcuts for common coordinate systems such as cylindrical, spherical, and Euler-angle based, and a method for automatic coordinate system creation makes it easy to define anisotropic material properties that follow curved geometric shapes. • Model Couplings • The COMSOL Desktop® allows you to work simultaneously in 3D, 2D, 1D, and 0D. So called Model Couplings can be used to map any quantity across spatial dimensions.

8. COMSOL Multiphysics cont. • Meshing Types • Automatic and semi-automatic meshing tools are available in COMSOL Multiphysics, including free tetrahedral meshing and swept meshing. • The default algorithm is automatic tetrahedral meshing for physics defined in solids, and a combination of tetrahedral and boundary-layer meshing for fluids. • You can also take full control over the sequence of operations used for creating the mesh by defining a so-called mesh sequence.

9. COMSOL Multiphysics cont. • Finite Element Types • COMSOL's unique approach to multiphysics separates the geometric shape of the finite elements from the "finite element shape functions". • This provides maximum flexibility, and each geometric shape supports first, second, third, and, in some cases, higher-order shape functions, corresponding to traditional linear, quadratic, or cubic finite elements respectively. • Many types of physics utilize Lagrange finite elements, also know as isoparametric nodal-based finite elements. This includes heat transfer, structural mechanics, electrostatics, and more. • For CFD, specialized elements and numerical stabilization schemes are also used. • For vector-field electromagnetics, curved and higher-order curl elements, also known as edge or vector elements, are used.

10. COMSOL Multiphysics cont. • Geometry Modeling • COMSOL Multiphysics provides 1D, 2D, and 3D geometry modeling tools with a COMSOL native geometry kernel. • A number of primitive objects are available, as well as the capability of extruding general 2D geometry objects into 3D. • Additionally, 2D objects can be revolved or swept along parametric curves.

11. COMSOL Multiphysics cont. • State-of-the-Art Numerical Methods • COMSOL Multiphysics assembles and solves models using state-of-the-art numerical analysis methods. • Several different methods are used in the add-on modules, including finite element analysis, the finite volume method, the boundary element method, and particle tracing methods, but the emphasis of COMSOL Multiphysics is on the finite element method. • Parametric and Associative Models • COMSOL creates sequences to record all steps that create the geometry, mesh, studies and solver settings, visualization, and results presentation. • You can therefore easily parameterize any part of the model, by simply changing a node in the Model Tree and re-running the sequences.

12. COMSOL Multiphysics cont. • Variables, Expressions, and Look-up Tables • COMSOL Multiphysics comes with a built-in interpreter for mathematical expressions. • Expressions can be assigned to variables for later use in material properties, boundary conditions, or sources. • This means that most of the time you do not need to write code to adapt the software when there is a need for a custom expression. • APIs and the Physics Builder • Although the COMSOL Desktop® environment lends itself for easy and general customization, a number of different application programming interfaces (APIs) are available. • The Physics Builder, which is included in COMSOL Multiphysics, allows you to create your own physics interfaces accessible from the COMSOL Desktop® with the same look-and-feel as the built-in physics interfaces.

13. COMSOL Multiphysics cont. • Exporting Results and Generating Reports • Results can be exported to text files on the .txt, .dat,and .csvformats, the Microsoft® Excel®on the .xlsx format, images on several common image formats and animations on Animated GIF, Adobe® Flash, or AVI. • Reports summarizing the entire simulation project can be exported to HTML (.htm,.html) or Microsoft® Word® (.doc) format.

14. COMSOL Multiphysics cont. • Results Visualization and Postprocessing • Visualization capabilities include surface, slice, isosurface, cut plane, arrow, and streamline plots, as well as many other plot types. • A range of postprocessing tools are available for evaluation and integration. • You can compute the max, min, average, and integrated values of any quantity or composite quantities, throughout volumes, on surfaces, along curved edges, and at points.

15. COMSOL Multiphysics cont. • Verify and Optimize your Simulations • COMSOL Multiphysics is a flexible platform that allows users to model all relevant physical aspects of their designs. • Expert users can dig deeper and use their knowledge to develop customized solutions, applicable to their unique circumstances. • With this kind of all-inclusive modeling environment, COMSOL gives you the confidence to build the model you want with real-world precision.