The structural mechanics module includes both predefined material models to choose from and the ability to enter userdefined material models, depending on the nature of your analysis. Note that many of the examples featured here can also be accessed via the application libraries that are built into the comsol multiphysics software and available from the file menu. A parametric sweep over twodimensional parameters in the solidworks assembly has been included to study the influence of the geometry on the physics phenomena, visualized through a table surface plot in the results. These structures are too complex to be rebuilt as parametric surfaces, that is why only the material parameters are varied. The standardized comsol desktop user interface, which is the basis for the electrodeposition module, is also used for all the other addon products in the comsol product suite. Parametric representation is a very general way to specify a surface, as well as implicit representation. In order to fully evaluate whether or not the comsol multiphysics software will meet your requirements, you need to contact us. I am looking for a free not only as in freedom alternative to comsol multiphysics. This way, you get the job done with the standard repair tolerance of 1e6. Livelink for ptc creo parametric updates for users of livelink for ptc creo parametric, comsol multiphysics software version 5. In addition, the cad import module allows you to import the native file formats of a number of cad systems, such as solidworks, inventor, ptc creo parametric, nx, and autocad. Livelink for autocad updates for users of livelink for autocad, comsol multiphysics software version 5.
Solution joining for parametric, eigenfrequency, and time. This will be especially useful when supplying customers, without access to comsol multiphysics, with apps. In this module, we explore a new but familiar way of describing surfaces, as parametric mappings of planar regions in space. And what the relationship between this red circle and the blue circle is. The new mphray function has been added to support ray optics and ray acoustics data sets. It is very easy to learn provided one must know the underlying theory behind the simulation, i.
Comsol multiphysics allows you to perform parametric sweeps using more than one parameter. Comsol is one of the best software to date for multiphysics applications. Introduction to application builder comsol multiphysics. In comsol multiphysics simulation software, surface, line, and volume plots are used to display results on the surfaces, edges, or 3d domains of a models geometry, respectively. Some of the distinct advantages i have experienced are.
The figure below shows the temperature difference between the model without radiation and the model that takes surfacetosurface radiation into account. Note that camera view positions and lights are not handled due to differences between comsol multiphysics and matlab graphics. Comsol multiphysics is a generalpurpose software platform, based on advanced numerical methods, for modeling and simulating physicsbased problems. However, since each step follows from preceding steps, parametric design can require careful planning. In the first case, the comsol software carries out a nested parametric sweep, where every combination of parameters is utilized. Trace out surface su,v by moving a profile curve cu along a trajectory curve tv. Application builder launched with comsol multiphysics 5.
Simply log in and follow the onscreen product download directions. Note that while comsol employees may participate in the discussion forum, comsol software users who are onsubscription should submit their questions via the support center for a more comprehensive response from the technical support team. Suppose that cu lies in an x c,y c coordinate system with origin o c. Instead of manually changing these property values and resolving each time, you can perform a parametric sweep with comsol multiphysics. Cad import module import cad files into the comsol software. If using the linux operating system or macos, this is located in the help menu. Comsol provides an ide and unified workflow for electrical, mechanical, fluid, acoustics and chemical applications.
Comsol multiphysics software understand, predict, and. A nonclosed 2d surface can be converted to a solid using extrusion so that it gets a nonzero thickness. Forum how to transform a closed parametric curve in a 2d surface. Oct 07, 2015 in comsol multiphysics simulation software, surface, line, and volume plots are used to display results on the surfaces, edges, or 3d domains of a models geometry, respectively. How to build geometries from elevation data to model.
Comsol multiphysics software understand, predict, and optimize. The comsol multiphysics software enables the simulation of designs involving coupled physics em, mechanics, acoustics, fluid flow, heat transfer, chemical reactions, etc and the creation of easytouse apps. It is recommended to let the two parameters s1 and s2 go from 0 to 1, so to get the actual dimensions in the final geometry, we need to reparameterize the x, y, and z expressions. Simulating plasmon effects in nanostructured oled cathodes using comsol multiphysics software l. Whats the difference between parametric and direct.
The importance of thermal radiation in your models comsol blog. Dec 21, 2016 comsol multiphysics contains a handful of tools to quickly and easily convert 2d planar geometries into 3d objects, namely, the extrude, revolve, and sweep geometry operations. The update can be applied directly to an installation of version 5. In a multiparameter sweep, you have two options for sweep type. Surface mesh models, such as in the stl format, can also be imported and then converted to a geometry object by the comsol multiphysics core package. The surface at the right, whose technical name is torus, is an example.
How to calculate dispersion parameter of the pcf by using comsol software. By talking to one of our sales representatives, you will get personalized recommendations and fully documented examples to help you get the most out of your evaluation and guide you to choose the best license option. Performing a parametric sweep study in comsol multiphysics. Gocad surface model showing the inner structure of the calcareous alpine units between surface b. But here i just kind of want to give an intuition for what parametric surfaces are all about, how its a way of visualizing something that has a twodimensional input and a threedimensional output. Note that whenever you update any of the parameters or expressions for the parametric surface, you need to click the rebuild with updated functions button in the advanced settings section of the settings window. This might be a question better suited for the software recommendations side of s. As the functions are slightly different, the expressions used will also differ. Without seeing your equations its hard to offer an exact solution, but you can accomplish this by using fsurf ezsurf if you have an older version of matlab there are specific sections regarding plotting parametric surfaces using ezsurf and fsurf. With more than 30 addon products to choose from, you can further expand the simulation platform with dedicated physics interfaces and tools for. Comsol software users who are onsubscription should submit their questions via the support center for a more comprehensive response from the technical support team.
Read more about this livelink for ptc creo parametric update below. A parametric sweep allows you to change the parameter values through a specified range. This enables you to couple the physics describing your electrodeposition or etching process to other modules, such as the heat transfer module for studying thermal. The difference is about 8c, implying that radiation significantly influences the results. To create a parametric surface based on an imported dem file, click the create surface button. The ray optics module is an addon to the comsol multiphysics software that allows you to model electromagnetic wave propagation with a ray tracing approach. Comsol multiphysics is an engineering, design, and finite element analysis software environment for the modeling and simulation of any physicsbased system. This includes a number of builtin objects for commonly used shapes as well as parameters that enable you to define and position objects. Userdefined selections are also synchronized and used for assigning boundary conditions in the analysis.
The method editor is an important part of the application builder and is available in the comsol desktop environment in the windows version of comsol multiphysics. Import operations are like any other operation in the geometry sequence and can be used with selections and associativity for performing parametric and optimization studies. Browse the menu to the left for more details on core functionality and specific addon. The propagating waves are treated as rays that can be reflected, refracted, or absorbed at boundaries in the model geometry.
How to perform parametric sweeps comsol multiphysics. A parametric sweep over twodimensional parameters in the ptc creo parametric assembly has been included to study the influence of the geometry on the physics phenomena, visualized through a table surface plot in the results. A parametric surface is a surface in the euclidean space which is defined by a parametric equation with two parameters. How to generate streamlines for heat transfer parametric. A parametric sweep with different applied voltages and a varying emissivity between 0. One of the first steps to building a model is creating the geometry. Then unite block and surface, split, and delete the outside part. It allows conventional physicsbased user interfaces and coupled systems of partial differential equations pdes. Alternatively, if the customers need a more permanent way to run the app, they can create their own apps and run them on the comsol server for a price cheaper than comsol multiphysics.
Comsol multiphysics is a crossplatform finite element analysis, solver and multiphysics simulation software. How to generate streamlines for heat transfer parametric study experiments in comsol multiphysics. Comsol multiphysics and solidworks software interface via livelink for solidworks. Jul 28, 2014 comsol multiphysics allows you to perform parametric sweeps using more than one parameter.
What is the difference between auxiliary sweep and parametric sweep in comsol. A parametric surface geometry feature is used to generate a synthesized random surface. How to generate random surfaces in comsol multiphysics. The selections are then used to assign materials to the geometry in the comsol multiphysics model.
How to extrude, revolve, and sweep 2d geometries in comsol. In particular, we will see that there is a natural way to describe the torus as a parametric surface. Livelink for ptc proengineer updates for users of livelink for ptc proengineer, comsol multiphysics software version 5. How to create surface, volume, and line plots in comsol. With the design module, there is also a thicken feature that can thicken a surface into a thin solid. In order to check that the update installation was successful, first start the comsol multiphysics software and select the about comsol multiphysics menu option.
For every point along tv, lay cu so that o c coincides with tv. To help the learning process, there is a streamlined. With comsol multiphysics, you will be able to account for coupled or multiphysics phenomena. Calculus iii parametric surfaces assignment problems. In his keynote talk at the comsol conference 2018 lausanne, andri bezzola of. Building a complex geological model using parametric surfaces. If you use two parametric surface nodes instead, with the same settings except that in the first one, the s1 parameter runs from 0 to pi, and in the other, it runs from pi to 2pi instead of one parametric surface where s1 runs the full circle from 0 to 2pi. Conversion of parametric surface to solid comsol multiphysics. Livelink for solid edge updates for users of livelink for solid edge, comsol multiphysics software version 5. For users of livelink for ptc creo parametric, comsol multiphysics software version 5. Here is a set of assignement problems for use by instructors to accompany the parametric surfaces section of the surface integrals chapter of the notes for paul dawkins calculus iii course at lamar university.
You can now generate a tetrahedral mesh directly from an imported surface mesh, that is. The comsol multiphysics fea software comes with predefined physics interfaces with specialized settings, making it easy to set up and run analyses. As of update 2, the new rotordynamics module is available as an optional addon to the structural mechanics module. The method editor is an important part of the application builder and is available in the comsol desktop environment in.
Properties such as exchange current densities, charge transfer coefficients, specific active surface areas, diffusivities, and reaction mechanisms can be determined from combined experiment and simulation results. The surface of revolution is a special case of a swept surface. All cad software supports the export of parasolid, acis, step, and iges file formats, which can then be readily imported into comsol multiphysics. Parameters can represent geometric dimensions as well as physical properties. Comsol multiphysics alternatives and similar software. If using the windows operating system, this is located in the file menu under help. Modeling software for ray tracing in optically large systems. Height aberration plots, arrow surface plots normal and tangent angles, streamline surface plots, and line plots with two yaxes. It is easy to download the latest version of the comsol software if you have a comsol access account with your license number linked to it. To help you build 3d geometries, the comsol multiphysics software contains a number of geometry tools, operations, and other functionality. How to plot a parametric surface in matlab stack overflow.
To download the mphfiles, log in or create a comsol access account that is associated with a valid comsol license. Surfacetosurface radiation symmetry for perpendicular planes. In a nutshell, parametric design involves engineers building up a 3d geometry piece by piece. Large differences between surface and ambient temperatures. In most cases you can either use auxiliary or parametric sweep to sweep the study over a certain parameter. To easily generate randomlooking geometric surfaces, the comsol multiphysics software provides a powerful set of builtin functions and operators, such as functions for uniform and gaussian random distributions and a very useful sum operator. Complete product documentation can be found during the installation process or. What is the difference between auxiliary sweep and parametric. In this tutorial video, we will teach you how to implement a parametric sweep with the comsol software. Comparison between the busbar model without radiation and the one with surfacetosurface radiation. In comsol multiphysics, models can be made parametric with algebraic relationships between parameters and variables.
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