How to extrude, revolve, and sweep 2d geometries in comsol. Browse the threads and share your ideas with the comsol community. Sweeping can now be done along a sequence of edges. The usual solver keeps the important results at time steps before the nonconvergence, but for some reason the parametric sweep doesnt. In his keynote talk at the comsol conference 2018 lausanne, andri bezzola of. In addition to 3d modeling, it allows project creation entirely in 2d, such as mechanical parts, civilian plants, layouts, etc. Two new addon products, the porous media flow module and the metal processing module, further. To help the learning process, there is a streamlined. You dont need any previous knowledge about this program and will get to know the.
For a sweep where each computation is quick and doesnt require much memory, such as this example, the computation time using a batch sweep is longer than if you used a regular parametric sweep. Model with comsol multiphysics on meshes based on mri and scanned data the following software support export to comsol mesh format mimics by materialise, read more on. For example, if you want to monitor stress on a film as thickness increases, instead of changing the thickness every time for each simulation, use a parametric sweep i. These instructional videos then take you through each step of the modeling workflow, including. The overhead comes from the fact that for each parameter, a separate comsol multiphysics process is started. For users of the plasma module, comsol multiphysics version 5. What is the difference between auxiliary sweep and. Learn how to postprocess your sweep in our follow up.
The livelink products make it possible to keep the parametric cad model intact in its native environment but still control the geometric dimensions from within the comsol multiphysics software, as well as produce simultaneous parametric sweeps over several model parameters. Jan 23, 2016 use a continuation sweep and not a specific parametric sweep, if you have only bc values to change a continuation sweep uses the last values from previous simulation as starting values for the next, ideal for an increasing force case, while a parametric sweep node updates the geoemtry, the mesh and restarts each time with original initial. What is the difference between auxiliary sweep and parametric. This might be a question better suited for the software recommendations side of s. Comsol multiphysics software understand, predict, and optimize.
Release notes in the geometry sequences you can now move individual geometry nodes geometry objects and features up and down to modify and rearrange the geometry sequence. To export a quality animation, it is important to adjust the number of frames, frame rate, and resolution of your animation. When considering what makes software reliable, its helpful to remember the goal. This parameter will be used to define the element size at the start of the parametric sweep.
How can i extract the animation in avi format in comsol. Combining parallel slices to create an animation comsol blog. When i tried to add a geometry parameter to a sweep already containing other parameters, i obtained the same problem than you even turning the study extensions off. Comsol seems to scan my geometry, when completed, and sort the objects from left to right. You will need an onsubscription comsol license attached to your comsol access account or a software trial provided by your sales representative. How to set boundary conditions from parametric solver. You can then plot and list the temp at that node vs time. Create and export animations from comsol multiphysics. Animation with parametric sweep comsol multiphysics. Comsol postprosessing and visualization handbook part2. Here is a simple tutorial on how to use parametric sweep in comsol multiphysics 5. Jul 09, 2009 im not sure what you mean by parametric sweep analysis, but if you are doing a transient analysis, then just enter the timehistory post processor post26 and then add a variable.
Running a comsol multiphysics simulation that yields several results. The parametric sweep functionality, in contrast, performs an outer sweep, meaning that it essentially solves a set of independent models. In previous software versions, you had to choose to perform either a parametric sweep or an optimization study in such cases. Comsol provides an ide and unified workflow for electrical, mechanical, fluid, acoustics, and chemical applications. We also recommend producing the animation in the graphics window first to see how it looks before exporting it to a file. I wonder if it is possible to let comsol use an alternative criterium for indexing all geometry objects. How to perform a parametric sweep in comsol multiphysics. I have had a similar problem right now, in comsol 4.
Comsol multiphysics is a crossplatform finite element analysis, solver and multiphysics simulation software. Parametric sweep analysis in comsol physics forums. This new animation is constructed in realtime by the game engine, and is not stored in a separate file like a regular animation. Now, the two study types can be combined in one and the same model. A parametric sweep allows you to change the parameter values through a specified range. For example, if we take param11 param20 param31, we can fix a current entering on a first border, an electric insulation on the second and an outgoing current on the third. Assign colors to all types of selections, both under definitions and in the geometry sequence. As of update 2, the new rotordynamics module is available as an optional addon to the structural mechanics module. Its comsol multiphysics product is an integrated software environment for creating physicsbased models and simulation applications. This is done by adding a material switch node, specifying the materials to switch between, and then adding a material sweep to your study. You have the option of parametric sweep in the study section. Dec 11, 2014 in comsol multiphysics, you can implement a parametric sweep to automate the process of varying the values of a parameter as well as resolving for your entire value range. Comsol multiphysics is compatible with windows xp7810 environment, 32 and 64bit versions. The core comsol multiphysics package provides geometry modeling tools for creating parts using solid objects, surfaces, curves, and boolean operations.
How to continue a parametric sweep in case of a problem. Learn how to postprocess your results from a parametric sweep in. This means that each parameter step will be more expensive to compute since degree of freedom allocation, etc, is redone separately for each step. This software was originally produced by comsol ab.
Parametric animation is an animation technique used in computer software, such as in computer games, that blends two or more separate animations together to form a new animation. It allows to use comsol models in the rbmatlab package. Watch this tutorial video to learn how to perform a material sweep. If you do not yet have a comsol access account, please create one now. New and updated solvers speed up a wide range of simulations. Popular open source alternatives to comsol multiphysics for linux, windows, mac, software as a service saas, web and more. Mar 12, 2010 hello we have understood how define the parameters of the solver to associate as boundary conditions as parameters. The new mphray function has been added to support ray optics and ray acoustics data sets. It allows conventional physicsbased user interfaces and coupled systems of partial differential equations pdes. Popular alternatives to comsol multiphysics for windows, linux, mac, web, gnu octave and more. Right click to open the multiple options and select parametric sweep. Comsol is a global provider of simulation software for product design and research to technical enterprises, research labs, and universities. Feb 19, 2017 here is a simple tutorial on how to use parametric sweep in comsol multiphysics 5.
Creating a video and animation using a parametric sweep. Solidface is a sum of parasolid siemens 3d modeler core and 15 years of 2d3d cad development resulting in a product with powerful. Unfortunately, i do not currently have a comsol license to check it but i think you can simply enter the time and temperature values in the 1d interpolation table, choose a name and the interpolant style and just use it in the later part of the program. What is the difference between auxiliary sweep and parametric sweep in comsol. Postprocessing the results from a parametric sweep comsol. The last chapter, running the comsol software, provides an overview of the.
In comsol multiphysics, you can implement a parametric sweep to automate the process of varying the values of a parameter as well as resolving for your entire value range. If i fix the problem and i do not want to reprocess those parameter values which succeeded, how can i run the simulation for only the remaining parameters, and accumulate the results so that finally i have the complete set of solutions. Trial licenses are automatically associated with your account. In this tutorial video, we will teach you how to implement a parametric sweep with the comsol software. I am looking for a free not only as in freedom alternative to comsol multiphysics. Parameter sweeps and target functions can be executed right in the. The most popular versions among comsol multiphysics users are 4. Learn some best practices for creating and exporting animations in. My model is time dependent and defined to run until nonconvergence. In the description column or field, enter element size divider. In comsol multiphysics, this is fairly straightforward using the player node for timedependent or parameter sweep study types. One such tool, partition operations, enables you to separate out any part of your models geometry. The program allows exploration of various assumptions, design geometries and boundary conditions, and consequently users are able to visually and quantitatively analyze the implications of.
A parametric sweep is used to scale the devices while running the simulations. Comsol multiphysics is a finite element analysis software program that provides the means to model engineering designs and simulate potential failure modes. Two different usercontrolled meshes are generated according to the need of the simulations, and stationary analyses are performed using modified solver settings in order to facilitate running the simulation with the mobility models employed. Dec 22, 2014 solidface is a 2d3d parametric historic constructive cad modeler. Performing a parametric sweep study in comsol multiphysics. For the polygon feature you can use coordinate data from a text file or from a table to specify the polygon vertices in addition to using. May 10, 2019 the port boundary condition in the rf module, an addon to the comsol multiphysics software, can be used to launch and absorb electromagnetic energy.
This is useful for splitting geometric entities such as objects, domains, boundaries, and edges and for removing parts of your models geometry, either to. Parameter sweeps and target functions can be executed right in the user. Of course, to create animations, you need multiple results. Applicable simulations include those with auxiliary and parametric sweeps, function and material sweeps, and timedependent and. Download documentation for getting started with the comsol multiphysics software, the application builder, the comsol server product, and more. How to use circular ports in the rf module comsol blog. Comsol is the developer of comsol multiphysics software, an interactive environment for modeling and simulating scientific and engineering problems.
You will experience speedup by a factor of up to ten in software responsiveness, as well as new and improved features for solving, meshing, and the physicsbased addon modules. How to switch between materials in comsol multiphysics. How to set up and run a simulation with comsol multiphysics a proper introduction on how to set up and run a model in comsol multiphysics is essential when learning how to use the software. Tried also putting units after the parametric sweep values like. In this case, the parametric sweep was creating a parametric solver node. The easiest way to define foo is through the 1d interpolation option. Comsol multiphysics alternatives and similar software. Sometimes the simulation fails at one of these values, and the sweep stops. The update can be applied directly to an installation of version 5. Mosfet channel engineering and scaling study using comsol. Running parametric sweeps, batch sweeps, and cluster sweeps from the command line solution number. Geometries are defined by sequences of operations, where each operation is able to receive input parameters for easy edits and parametric studies in multiphysics models. Instead of manually changing these property values and resolving each time, you can perform a parametric sweep with comsol multiphysics. The comsol discussion forum covers a wide variety of simulation topics.
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