## Defining a Multiphysics Model, Part 1: The Automatic Approach

##### Amelia Halliday November 6, 2018

To help understand the complicated universe we live in, we have compartmentalized physics phenomena into distinct disciplinary specializations. However, natural and engineering problems often cross these utilitarian borders. A major strength of the COMSOL Multiphysics® software is the ease with which such cross-disciplinary interactions, which we refer to as multiphysics interactions, can be accounted for. The COMSOL® software provides a plethora of built-in multiphysics couplings and even enables users to implement their own physics couplings.

### How to Use the Parameter Estimation Study Step for Inverse Modeling

##### Amelia Halliday March 29, 2018

When creating a simulation, you usually start by building the forward model, supplying various inputs, and then looking at the results. However, what if you have a set of results and want to find the input values that provide the same outcome? Here, we show how to use the Parameter Estimation study step, which helps you build an inverse model and solve for the optimal values of your model inputs.

### Creating a Model Geometry in COMSOL Multiphysics®

##### Amelia Halliday June 29, 2017

Creating the geometry for your model is one of the first steps of setting up a simulation. In the COMSOL Multiphysics® software, there are many geometry operations, tools, and functionality that enable you to do this. These include geometric primitives; Boolean, partition, and transformation operations; work plane operations; and other CAD tools. Here, we highlight all of this functionality and, near the end, link to a video tutorial series that shows how to use them while building your model geometry.

### How to Use the Find and Auto Completion Tools for Faster Model Setup

##### Amelia Halliday May 8, 2017

When making improvements to a model in the COMSOL Multiphysics® software, you are likely to add more parameters and variables. As the complexity of your model grows, it can become difficult to keep track of where these parameters are being used and defined, as well as to recall them for use in the settings of other nodes. In this blog post, we show you how to use the Auto Completion and Find tools for efficient model setup.

### Using the COMSOL Website Resources for Modeling and Software Help

##### Amelia Halliday January 27, 2017

In a previous post, we introduced the help tools included in the COMSOL Multiphysics® software. You can access additional resources on the COMSOL website, including the COMSOL Blog, Video Gallery, Application Gallery, Discussion Forum, Model Exchange, and Support Knowledge Base. In this blog post, we discuss these resources and point you to a video that shows how to use these tools for software and modeling guidance.

### Using the Help Tools in COMSOL Multiphysics® for Modeling Guidance

##### Amelia Halliday January 10, 2017

The COMSOL Multiphysics® software helps you find solutions to your engineering questions, but you may also have questions on using the simulation software itself. Therefore, we’ve created resources to guide your modeling process. In this blog post, we discuss three help tools that you can access in COMSOL Multiphysics: the Help window, Documentation window, and Application Library. We also link to a video that shows you how to access and use these tools at the end of this post.

### Efficiently Assign Materials in Your COMSOL Multiphysics® Model

##### Amelia Halliday September 20, 2016

To optimize your modeling processes, there are a number of built-in materials available for you to use in the COMSOL Multiphysics® software. Along with these materials are features and functionality that allow you to efficiently assign materials to geometric entities in your model. These tools help expedite the process of assigning materials, specifying material properties, and even comparing the impact of different materials on your simulation results. Here, we’ll highlight three tutorial videos that showcase how to use such tools.

### Streamline Your Simulation Workflow with Named Selections

##### Amelia Halliday August 3, 2016

When you are creating a model, it can sometimes be difficult to keep track of all the parts in the geometry, including the conditions or constraints that apply to each section. This is especially true when dealing with large, complex geometries and multiple physics interfaces. In COMSOL Multiphysics, tools like named selections help maintain your model setup and streamline your workflow. Here’s a look at three tutorial videos demonstrating how to create and utilize Explicit, coordinate-based, Boolean, and adjacent selections.

### Navigating the Intuitive COMSOL Multiphysics® Modeling Environment

##### Amelia Halliday June 28, 2016

Simulation is a powerful tool that enables you to obtain a holistic view of your design’s performance. While the physics you are studying may be complex, the environment in which you run such studies doesn’t have to be. This rationale has served as the logic behind continuously optimizing the user interface (UI) in the COMSOL Multiphysics® software for ease-of-use. Several tutorial videos, three of which are highlighted here, guide you on how to navigate the environment and utilize its tools.

### Video Tutorial: Introduction to Modeling Structural Mechanics

##### Amelia Halliday September 17, 2014

I have great news for anyone who is eager to learn the fundamentals of simulating structural mechanics in COMSOL Multiphysics. We have just published a completely revamped version of our video tutorial on the static bracket model. COMSOL Multiphysics version 4.4 and the Structural Mechanics Module are used to analyze the resultant forces, stresses, and deformations that occur on solid structures that are subjected to external loads.

### Video Tutorial: Capacitive Pressure Sensor

##### Amelia Halliday June 16, 2014

If you are searching for a tutorial on how to model a miniaturized 3D electromechanics problem, then look no further. We have just published an updated version of our video tutorial on how to simulate a capacitive pressure sensor. COMSOL Multiphysics version 4.4 and the MEMS Module are used to simulate the electrostatic, structural, and thermal physics that occur.