Run COMSOL Multiphysics® Simulations with MATLAB®

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href="http://cn.comsol.com/livelink-for-matlab?setlang=1" >中文</a> </li> </ul> </div> </li> </ul> </div>   <div class="content"> <div class="contentWindow"> <div class="prod-wrapper" data-cm-prod-scroll> <div class="prod-content-wrapper">  <div class="cmprod cmprod-livelink-for-matlab">  <header class="cmprod-header header-v2"> <div class="container-fluid"> <div class="row"> <div class="col-xs-12"> <div class="content-wrapper">  <div class="header__intro">  <nav class="cmprod-breadcrumb-nav"> <ul class="breadcrumb-nav__menu"> <li class="menu_item"><a class="menu__link" href="/products#modules">Product Suite</a></li> <li class="menu_item">LiveLink™ <span class="llCompany"><em class="ipFor">for</em> MATLAB<sup>®</sup></span></li> </ul> </nav>  <h1><h1 class='first'>LiveLink™ <span class="llCompany"><em class="ipFor">for</em> MATLAB<sup>®</sup></span></h1> </h1> <p>Combine COMSOL Multiphysics<sup>®</sup> Simulations with MATLAB<sup>®</sup> Programming</p>  <p>LiveLink™ <span class="llCompany"><em class="ipFor">for</em> MATLAB<sup>®</sup></span> enables you to seamlessly integrate COMSOL Multiphysics<sup>®</sup> with MATLAB<sup>®</sup> to extend your modeling with programming in the MATLAB<sup>®</sup> environment. The bidirectional interface between MATLAB<sup>®</sup> and COMSOL Multiphysics<sup>®</sup> allows you to use MATLAB<sup>®</sup> as the scripting interface for setting up and solving COMSOL Multiphysics<sup>®</sup> models. Additionally, you can call MATLAB<sup>®</sup> functions from within the COMSOL Desktop<sup>®</sup> and from COMSOL<sup>®</sup> simulation applications. Utilize the full power of MATLAB<sup>®</sup> and its toolboxes in preprocessing of data, model manipulation, and postprocessing.</p>  <a href="#cta-section" data-cm-cta-jump class="btn-default cmprod-btn btn-prod-cta">Contact COMSOL</a> <script nonce="e9miNzLtovF999F2sVcxzg=="> $('[data-cm-cta-jump]').click(function(){ $("[data-cm-form]").show(); }); </script> </div>  <figure class="header__figure"> <picture> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/full/livelink-for-matlab-hero.webp' type='image/webp'> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/full/livelink-for-matlab-hero.png' type='image/png'> <img id="" src="https://cdn.comsol.com/product-new/livelink-for-matlab/full/livelink-for-matlab-hero.png" alt="The COMSOL Multiphysics UI with a vacuum flask model in the Graphics window, overlaid on a MATLAB UI." class="" /></picture> </figure> </div> </div> </div> </div> </header>  <main class="cmprod-main">  <section class="cmprod-main__section section--primary-bg cmprod-section_general-functionalities"> <div class="container"> <div class="row"> <div class="col-xs-12"> <div class="cmprod-section__content">  <div class="row"> <div class="col-xs-12"> <div class="cmprod-section__intro"> <h2 class='first'>Features and Functionality in LiveLink™ <span class="llCompany"><em class="ipFor">for</em> MATLAB<sup>®</sup></span></h2> <p>LiveLink™ <span class="llCompany"><em class="ipFor">for</em> MATLAB<sup>®</sup></span> provides the necessary tools for maximizing the use of COMSOL Multiphysics<sup>®</sup> and MATLAB<sup>®</sup> in combination.</p> </div> </div> </div>  <div class="row"> <div class="col-md-6">  <article class="cmprod-card-lg"> <figure class="cmprod-card-lg__figure"> <a href="https://cdn.comsol.com/product-new/livelink-for-matlab/full/ui/livelink-matlab-multiphysics-simulations-comsol.png" class="cmImgBox" data-gallery="cmImgModal" caption="With LiveLink&trade; <span class="llCompany"><em class="ipFor">for</em>&nbsp;MATLAB<sup>&reg;</sup></span>, you are able to run multiphysics simulations from MATLAB<sup>&reg;</sup>, from building the geometry to discretizing the mesh and postprocessing results, and everything in between." data-cm-alt="The MATLAB UI showing the geometry, mesh, and temperature results of a model." data-cm-webp='true' > <picture> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-multiphysics-simulations-closeup.webp' type='image/webp'> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-multiphysics-simulations-closeup.png' type='image/png'> <img id="" src="https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-multiphysics-simulations-closeup.png" alt="A close-up view of the MATLAB UI showing the mesh, geometry, and results of a model." class="" /></picture> <button class="view-image-toggle-btn" type="button"><i class="fa fa-expand"></i></button> </a> </figure> <div class="cmprod-card-lg__description"> <h3 class='first'>Run Multiphysics Simulations from MATLAB<sup>®</sup></h3> <p>LiveLink™ <span class="llCompany"><em class="ipFor">for</em> MATLAB<sup>®</sup></span> provides commands in the MATLAB<sup>®</sup> scripting language, sent from MATLAB<sup>®</sup> to COMSOL Multiphysics<sup>®</sup>, that initiate simulations in COMSOL Multiphysics<sup>®</sup>. This can be used for automating modeling steps as well as integrating COMSOL Multiphysics<sup>®</sup> models with calculations performed in MATLAB<sup>®</sup>. LiveLink™ <span class="llCompany"><em class="ipFor">for</em> MATLAB<sup>®</sup></span> uses the COMSOL application programming interface (API), which has all the necessary functions and methods for implementing models from scratch or updating settings in existing models.</p> <p>All aspects of COMSOL Multiphysics<sup>®</sup> modeling can be controlled using MATLAB<sup>®</sup> through the API, which is tightly integrated with the MATLAB<sup>®</sup> environment. LiveLink™ <span class="llCompany"><em class="ipFor">for</em> MATLAB<sup>®</sup></span> allows you to perform geometry and mesh operations, change physics settings, run parametric studies, control solvers, and postprocess the results. Results can be extracted as numerical data and MATLAB<sup>®</sup> figures.</p> </div> </article> <div class="spacer"></div>  <article class="cmprod-card-lg"> <figure class="cmprod-card-lg__figure"> <a href="https://cdn.comsol.com/product-new/livelink-for-matlab/full/ui/livelink-matlab-utility-tools-comsol.png" class="cmImgBox" data-gallery="cmImgModal" caption="<p>The <em>Model Navigator</em> and <em>Model Search</em> utility tools available with LiveLink&trade; <span class="llCompany"><em class="ipFor">for</em>&nbsp;MATLAB<sup>&reg;</sup></span> are helpful for finding and accessing COMSOL<sup>&reg;</sup> data from MATLAB<sup>&reg;</sup>.</p>" data-cm-alt="The Model Navigator and Model Search windows overlaid on the MATLAB UI." data-cm-webp='true' > <picture> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-utility-tools-closeup.webp' type='image/webp'> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-utility-tools-closeup.png' type='image/png'> <img id="" src="https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-utility-tools-closeup.png" alt="A close-up view of the Model Navigator and Model Search windows in the MATLAB UI." class="" /></picture> <button class="view-image-toggle-btn" type="button"><i class="fa fa-expand"></i></button> </a> </figure> <div class="cmprod-card-lg__description"> <h3 class='first'>Utility Tools for Managing Models from MATLAB<sup>®</sup></h3> <p>All COMSOL<sup>®</sup> model settings are available from the command line in MATLAB<sup>®</sup>. To help you get acquainted with the model data structure and the model settings, LiveLink™ <span class="llCompany"><em class="ipFor">for</em> MATLAB<sup>®</sup></span> comes with two utility tools for navigating and searching the model contents: the <em>Model Navigator</em> and <em>Model Search</em> tools.</p> <p>The <em>Model Navigator</em> provides an overview of the model structure in a model tree together with the model settings and the commands that can be executed for each part of the model. Using this tool, you can easily extract commands for setting and finding model properties to use in your own scripts.</p> <p>The <em>Model Search</em> tool will search the COMSOL Multiphysics<sup>®</sup> model from the MATLAB<sup>®</sup> interface, helping you to find expressions and variables used in a model. Several filters and search settings are provided to narrow your search.</p> <p>Furthermore, you can access a model from MATLAB<sup>®</sup> and the COMSOL Desktop<sup>®</sup> simultaneously. This way, you can use the workflow that is best suited for the task at hand. You may prefer to perform some tasks using the command line and scripting, while other tasks may be more convenient to perform using the COMSOL Multiphysics<sup>®</sup> user interface.</p> </div> </article> <div class="spacer"></div>  <article class="cmprod-card-lg"> <figure class="cmprod-card-lg__figure"> <a href="https://cdn.comsol.com/product-new/livelink-for-matlab/full/ui/livelink-matlab-geometry-mesh-comsol.png" class="cmImgBox" data-gallery="cmImgModal" caption="A bracket geometry, originally meshed with a tetrahedral mesh, has been edited to have a swept mesh in the bulk of the geometry, with a tet mesh at the bracket corners." data-cm-alt="Two windows showing different meshes of a bracket model overlaid on the MATLAB UI." data-cm-webp='true' > <picture> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-geometry-mesh-closeup.webp' type='image/webp'> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-geometry-mesh-closeup.png' type='image/png'> <img id="" src="https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-geometry-mesh-closeup.png" alt="A close-up view of two bracket meshes overlaid on the MATLAB UI." class="" /></picture> <button class="view-image-toggle-btn" type="button"><i class="fa fa-expand"></i></button> </a> </figure> <div class="cmprod-card-lg__description"> <h3 class='first'>Manage and Create Geometry Models and Meshes from MATLAB<sup>®</sup></h3> <p>Running COMSOL Multiphysics<sup>®</sup> from MATLAB<sup>®</sup> gives you a lot of flexibility when handling geometry models and meshes. From MATLAB<sup>®</sup> programs and the MATLAB<sup>®</sup> command-line interface, you can:</p> <ul> <li>Generate geometry objects with inputs from MATLAB<sup>®</sup></li> <li>Import and export CAD models in a range of industry-leading file formats<sup>1</sup></li> <li>Run simulations based on imported CAD models</li> <li>Create, import, and export surfaces on the STL, 3MF, and PLY file formats</li> <li>Plot geometry objects in MATLAB<sup>®</sup> figures</li> <li>Obtain geometry information for points, edges, surfaces, and domains, e.g., for adjacency, curvature, distances, etc.</li> <li>Convert an image to a 2D geometry</li> <li>Generate meshes</li> <li>Plot meshes in MATLAB<sup>®</sup> figures</li> <li>Retrieve mesh information such as mesh statistics and other mesh data</li> <li>Import and export mesh data</li> </ul> </div> </article> <div class="spacer"></div> </div> <div class="custom-spacer"></div> <div class="col-md-6">  <article class="cmprod-card-lg"> <figure class="cmprod-card-lg__figure"> <a href="https://cdn.comsol.com/product-new/livelink-for-matlab/full/ui/matlab-import-functions-flask-comsol.png" class="cmImgBox" data-gallery="cmImgModal" caption="With LiveLink&trade; <span class="llCompany"><em class="ipFor">for</em>&nbsp;MATLAB<sup>&reg;</sup></span>, you are able to import MATLAB<sup>&reg;</sup> functions to employ throughout your model. In this model, a function was added to provide a temperature-dependent material and heat flux within a vacuum flask simulation." data-cm-alt="The COMSOL Multiphysics UI showing the Model Builder with the MATLAB node highlighted, the corresponding Settings window, and a vacuum flask model in the Graphics window." data-cm-webp='true' > <picture> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/matlab-import-functions-flask-closeup.webp' type='image/webp'> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/matlab-import-functions-flask-closeup.png' type='image/png'> <img id="" src="https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/matlab-import-functions-flask-closeup.png" alt="A close-up view of the Model Builder with the MATLAB node highlighted and a vacuum flask model in the Graphics window." class="" /></picture> <button class="view-image-toggle-btn" type="button"><i class="fa fa-expand"></i></button> </a> </figure> <div class="cmprod-card-lg__description"> <h3 class='first'>Call MATLAB<sup>®</sup> Functions from the COMSOL Desktop<sup>®</sup></h3> <p>LiveLink™ <span class="llCompany"><em class="ipFor">for</em> MATLAB<sup>®</sup></span> provides a direct connection to MATLAB<sup>®</sup> while running COMSOL Multiphysics<sup>®</sup>. You can call MATLAB<sup>®</sup> functions from the COMSOL Multiphysics<sup>®</sup> user interface (UI) to define material properties, boundary conditions, and more. These MATLAB<sup>®</sup> functions can be evaluated while the model is solving. Additionally, a COMSOL simulation app can contain MATLAB<sup>®</sup> calls, in which case MATLAB<sup>®</sup> will automatically start when called during runtime. </p> </div> </article> <div class="spacer"></div>  <article class="cmprod-card-lg"> <figure class="cmprod-card-lg__figure"> <a href="https://cdn.comsol.com/product-new/livelink-for-matlab/full/ui/livelink-matlab-import-code-comsol.png" class="cmImgBox" data-gallery="cmImgModal" caption="<p>COMSOL&nbsp;Multiphysics<sup>&reg;</sup> models can be exported as <code>.m</code> files, which contain all of the information in the model transcribed into MATLAB<sup>&reg;</sup> code. Import the <code>.m</code> file into MATLAB<sup>&reg;</sup> to edit the code (and file) directly.</p>" data-cm-alt="A screenshot of the Model Builder from COMSOL Multiphysics overlaid on the MATLAB UI showing the code in the Editor window." data-cm-webp='true' > <picture> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-import-code-closeup.webp' type='image/webp'> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-import-code-closeup.png' type='image/png'> <img id="" src="https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-import-code-closeup.png" alt="A close-up view of the Model Builder from COMSOL Multiphysics overlaid on the MATLAB UI." class="" /></picture> <button class="view-image-toggle-btn" type="button"><i class="fa fa-expand"></i></button> </a> </figure> <div class="cmprod-card-lg__description"> <h3 class='first'>Integrate with Your Existing MATLAB<sup>®</sup> Programs</h3> <p>For MATLAB<sup>®</sup> users, COMSOL Multiphysics<sup>®</sup> simulations can easily be integrated into existing code bases. You can save a model that has been set up in the COMSOL Multiphysics<sup>®</sup> user interface to an M-file. This M-file then contains COMSOL<sup>®</sup> API calls, in MATLAB<sup>®</sup> syntax, for running COMSOL Multiphysics<sup>®</sup> functionality. This provides a quick and convenient way of automatically generating COMSOL<sup>®</sup> modeling code, which can be used as a starting point for further integration into your MATLAB<sup>®</sup> programs.</p> <p>Using the automatic code generation tools provides a quick way to learn the COMSOL<sup>®</sup> API for MATLAB<sup>®</sup>, which is included in LiveLink™ <span class="llCompany"><em class="ipFor">for</em> MATLAB<sup>®</sup></span>. The COMSOL<sup>®</sup> API is easy to learn and has an intuitive structure similar to the steps you use when setting up models in the COMSOL Multiphysics<sup>®</sup> user interface using the Model Builder.</p> <p>Existing code that is based on MATLAB<sup>®</sup> toolboxes or your own code integrates easily with COMSOL Multiphysics<sup>®</sup> simulations. You can even call COMSOL Multiphysics<sup>®</sup> from user interfaces that have been created using MATLAB<sup>®</sup>. This makes it possible to, for example, use MATLAB<sup>®</sup> for preprocessing and postprocessing and COMSOL Multiphysics<sup>®</sup> for structural, fluid, electromagnetics, or other physics or multiphysics modeling. Simulations can then be carried out using a mix of programs and models created with MATLAB<sup>®</sup>, COMSOL Multiphysics<sup>®</sup>, and even other tools.</p> </div> </article> <div class="spacer"></div>  <article class="cmprod-card-lg"> <figure class="cmprod-card-lg__figure"> <a href="https://cdn.comsol.com/product-new/livelink-for-matlab/full/ui/livelink-matlab-extract-data-comsol.png" class="cmImgBox" data-gallery="cmImgModal" caption="You can plot COMSOL&nbsp;Multiphysics<sup>&reg;</sup> results in MATLAB<sup>&reg;</sup> by using LiveLink&trade; <span class="llCompany"><em class="ipFor">for</em>&nbsp;MATLAB<sup>&reg;</sup></span>." data-cm-alt="Two windows showing the boundary loads and stress in a bracket overlaid on the MATLAB UI." data-cm-webp='true' > <picture> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-extract-data-closeup.webp' type='image/webp'> <source srcset='https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-extract-data-closeup.png' type='image/png'> <img id="" src="https://cdn.comsol.com/product-new/livelink-for-matlab/thumbnails/ui/livelink-matlab-extract-data-closeup.png" alt="A close-up view of two bracket results plots overlaid on the MATLAB UI." class="" /></picture> <button class="view-image-toggle-btn" type="button"><i class="fa fa-expand"></i></button> </a> </figure> <div class="cmprod-card-lg__description"> <h3 class='first'>Generate Plots in MATLAB<sup>®</sup> and Extract Data from COMSOL Multiphysics<sup>®</sup></h3> <p>All COMSOL Multiphysics<sup>®</sup> plots can be recreated in MATLAB<sup>®</sup>. All plot types can be generated as regular MATLAB<sup>®</sup> plots and can be saved or exported and manipulated like any other MATLAB<sup>®</sup> plot. </p> <p>From your MATLAB<sup>®</sup> programs, you can evaluate COMSOL Multiphysics<sup>®</sup> expressions either locally at a few points or for larger portions of a model, such as along the edges, on surfaces, or in volumes. You can access the raw solution data or processed data based on arbitrary expressions, including maximum, minimum, average, and integral values.</p> <p>The COMSOL Multiphysics<sup>®</sup> unit handling is fully supported for any type of extracted data, which means that you can, for example, use unit handling in your own programs for unit conversion.</p> <p>Any numerical data from COMSOL Multiphysics<sup>®</sup> simulations can be retrieved and assigned to MATLAB<sup>®</sup> variables for further analysis. Low-level information that is directly related to mesh and shape function data can be extracted, as well as sensitivities and time and spatial derivatives.</p> </div> </article> <div class="spacer"></div> </div> </div> <div class="cmprod-footnotes"> <small><ol> <li>Requires one of the following add-on products: the CAD Import Module, the Design Module, LiveLink™ <span class="llCompany"><em class="ipFor">for</em> SOLIDWORKS<sup>®</sup></span>, LiveLink™ <span class="llCompany"><em class="ipFor">for</em> Inventor<sup>®</sup></span>, LiveLink™ <span class="llCompany"><em class="ipFor">for</em> Solid Edge<sup>®</sup></span>, LiveLink™ <span class="llCompany"><em class="ipFor">for</em> PTC Creo Parametric™</span>, LiveLink™ <span class="llCompany"><em class="ipFor">for</em> AutoCAD<sup>®</sup></span>, or LiveLink™ <span class="llCompany"><em class="ipFor">for</em> Revit<sup>®</sup></span></li> </ol> </small> </div> <div class="spacer"></div> <div class="cmprod-trademarks"> <em><small><p>MATLAB is a registered trademark of The MathWorks, Inc. All other trademarks are the property of their respective owners. For a list of such trademark owners, see the <a href="/trademarks">Trademarks</a> page. COMSOL AB and its subsidiaries and products are not affiliated with, endorsed by, sponsored by, or supported by these trademark owners.</p> </small></em> </div> </div> </div> </div> </div> </section> </main> </div> </div> </div>  <div class="prod-cta" style="position:relative;" id="software-evaluation"> <div id="cta-section"> <div class="container"> <div class="whiteBg"> <div class="row"> <div class="col-md-6" style="background: none"> <div class="cta-text" data-toggle="collapse"> <p><strong>Every business and every simulation need is different.</strong> </p> <p>In order to fully evaluate whether or not the COMSOL Multiphysics<sup>®</sup> software will meet your requirements, you need to contact us. 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 to suit your needs.</p> <p>Just click on the "Contact COMSOL" button, fill in your contact details and any specific comments or questions, and submit. 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