In a previous blog post, we looked at setting up a programmatic sequence of operations under the study node for solving, saving a model to file, and exporting data to file. 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. Approach to controlling a comsol model from matlab. Output comsol result from matlab matlab answers matlab. Just make an export from comsol and save the model as an mfile to learn the syntax. Import text data from comsol matlab answers matlab central. For users of livelink for matlab, comsol multiphysics software version. Use matlab as a scripting tool to set up and solve your comsol models. The only suffering is the limited capability of comsol for geometry objects to be exported into matlab, namely only geometry but no mesh or postprocessing data.
Visualize an export from comsol multiphysics in matlab. Hi, i meet a problem when i want to export the postprocessing data from comsol v4. Anyway, you can also export the fem structure fileexportfem and view the variable within the. Jan 18, 2011 saving comsol model from matlab livelink.
Can we make the same image in matlab as we made it in comsol by. Export log simulation data as a baseline for analyzing and debugging a model. Normally, to export these data into matlab, i must do it manually. Comsol software users who are onsubscription should submit their questions via the support center for a more comprehensive response from the technical support team. In this video i will show how to export data from cst microwave studio, which can be used for. You can use many formats for logged data, including dataset, matlab timeseries, arrays, and structures. Different file formats for exporting simulation results. Apr 16, 20 approach to controlling a comsol model from matlab. In comsol multiphysics, you can import mesh and interpolation data created by other software for use in your simulations.
Can we make the same image in matlab as we made it in comsol by exporting the data. I suppose that it could be done through the matlab interface or through the comsol. Livelink for excel updates for users of livelink for excel, comsol multiphysics version 5. Now id like to export the velocity magnitudes from a constant x value and varying y value. Closing remarks on exporting data with the application builder. Extracting data file from comsol tutorial 8 youtube. Get an 18minute introduction to livelink for matlab, which connects. There you will be able to select the different native and userderived variable if any as export data. Comsol and its livelink for matlab can only export the isosurfaces that are actually in the model. There is certainly a simpler way but you can export data from your graphs not from the group of graph but from each graph of the group by doing a right click. In comsol, is there a way to get it to export a txt file with all the eigenfrequencies found during an eigenfrequency analysis. Enhance your inhouse matlab code with powerful multiphysics.
I would like to export data from 2d surface plot in matrix using comsol 4. Comsol livelink for matlab recorded webinar youtube. Lowlevel file io functions let you work with data files in any format. Apr 06, 2016 closing remarks on exporting data with the application builder. Import matlab mfile back to comsol comsol multiphysics. Nov 23, 2017 did you know how easy to connect comsol multiphysics and matlab. Webinar the basics of livelink for matlab with comsol in 18 minutes. Say i want to export temperature along a boundary, or more complex. Thats why i want to export the data of all the cases and replot them again in matlab or excel.
Extract the coordinates from original image in excel and them import it in your matlab program. Jun 27, 2009 i would like to generate a mesh in comsol products like i can do with initmesh in the partial differential equation toolbox and export the data into matlab. Maybe my misunderstanding is not with comsol s matlab functions, but with matlab itself. Exporting meshes and solutions using the application builder. I have a matlab mfile that was generated by comsol previously. The comsol multiphysics tab within excel gives you access to a number of the features and functionalities that are available in comsol multiphysics such as opening and saving models, importing and redefining parameters, variables, and functions, running mesh and solver routines, extracting and treating data, and presenting your results.
Note that only 3d results can be exported this way, since the gltf and glb file formats support 3d graphics only. Nov 15, 2018 how to export a 3d results plot from comsol multiphysics as of comsol multiphysics version 5. We also share how you can extract data from comsol multiphysics models. Anyway, you can also export the fem structure file export fem and view the variable within the matlab workspace. How can i export mesh plot data out of comsol products into. Select surface from the space dimension list in the data nodes settings window and add a selection to the solution data set rightclick and choose add selection that is the surfaces that you want to export.
How can i import matlab script in comsol multiphysics. Can we make the same image in matlab as we made it in. Can we make the same image in matlab as we made it in comsol. Livelink for matlab allows you to utilize the full power of matlab and its toolboxes in preprocessing, model manipulation, and postprocessing. I want to extract the data for each mode from matlab but i can only have latest simulation. It is now possible to extract numerical data from models that use join datasets. Cad import module import cad files into the comsol software.
Comsol software users who are onsubscription should. After that, using the dlmread command to read the modified text file. Anyway, you can also export the fem structure fileexportfem and view the variable within the matlab workspace. As there are many cases, i wanna plot the curve into one figure for comparison. Dec 11, 2011 ive having issues with the being able to properly export plot data with sufficient resolution.
You can of course export your data to a vtk file using the api if you want. In order to fully evaluate whether or not the comsol multiphysics software will meet your requirements, you need to contact us. Requires requires comsol started together with matlab and raw2stl. How can i export mesh plot data out of comsol products. Learn more about comsol, initmesh, meshinit, export, mesh, data partial differential equation toolbox. Mathworks is the leading developer of mathematical computing software for. You can also export data created in comsol multiphysics to use in other comsol models and applications as well as other software. The information i need from the exported fem structure includes. Learn more about comsol, matlab, get results at some points. Apr 26, 2016 there is certainly a simpler way but you can export data from your graphs not from the group of graph but from each graph of the group by doing a right click. Are you running the software with the comsol multiphysics with matlab shortcut.
Did you know how easy to connect comsol multiphysics and matlab. Watch our recorded webinar to get an 18minute introduction to livelink for matlab, an addon product to comsol multiphysics. Comsol is the developer of comsol multiphysics software, an interactive environment for modeling and simulating scientific and engineering problems. Integrate matlab code with comsol multiphysics models. In this blog post, we demonstrate how to export your 3d plots as gltf files and share them in a variety of webbased graphics viewers, and even in facebook posts. Trial software how can i export mesh plot data out of comsol products into matlab. Let say for the geometry one edge is from 1 to m and other edge is from 1 to n and the color data has to have m x n elements. If you send an example model to support we may be able to help you with your work flow.
Dec 03, 2012 using livelink for matlab, it converts comsol. Do you require the exported mesh to be water tight. Just finished this after a couple of frustrating days working with comsol, where eventually i realized i couldnt get my model working and, to make it worse, i couldnt even find a way to export the geometry data to try another program. Learn more about simulink, control, data import, external model, comsol. I did right click the surface plot and saved it as data and exported it.
Extracting data file from comsol tutorial 8 pioneer of success. The comsol software exports glbfiles that can be used to easily open and manipulate the geometry in other tools. The comsol multiphysics software has support for exporting results in many different formats. 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. I just cant find a way to do it and the help section was no help at all. How to export data from cst microwave studio to other. All cad software supports the export of parasolid, acis, step, and iges file formats, which can then be readily imported into comsol multiphysics. How to export images automatically after solving your model. We have demonstrated how to create a very simple app that writes out the mesh and results from a comsol multiphysics steadystate thermal simulation.
Approach to controlling a comsol model from matlab matlab. Supported data formats vary between different logging techniques. I wanna export the data of a curve which ploted by comsol. Below your result menu you have a node export where you can obtain txt file from your data. You can read popular file formats, such as microsoft excel spreadsheets, text, images, audio and video, and scientific data formats. Seamlessly integrate comsol multiphysics with matlab to extend your modeling with scripting programming in the matlab environment.
I checked that on another computer, because in my one i also dont have a comsol with matlab icon. First, i import real measurement data, then convert them with matlab to a geometry object and finally read them with comsol. For your purpose, there is an export data node available for the results section. Figuring out how to grab the geometry from a solid3object was also tedious, tnx to comsolish. I simulate 2 modes for each frequency of a large sweep. Data import and export functions provide access to data from files, other applications, web services, and external devices. I was using comsol to simulate how fluid flow is affected by nanostructures. Hello, i use comsol with matlab livelink for running ewfd simulations. Automation of comsol multiphysics parameter studies using the matlab livelink dominik kerna, nilshenning framke b september 26, 2012 abstract comsol multiphysics is a finite element methods fem software package for the numerical solution of partial di. This document and accompanying example files give an overview of the import and export functionality available in comsol multiphysics and a detailed description of the import, export, and native comsol formats. Comsol multiphysics is a finite element methods fem software package.
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