Blog Posts Tagged Technical Content
Sampling Random Numbers from Probability Distribution Functions
Get a comprehensive background on probability distribution functions and the different ways you can sample random numbers from them in COMSOL Multiphysics®. Part 1 of a series on beam physics.
Improved Functionality and Tips for Importing STL and NASTRAN® Files
Learn how to import STL files originating from 3D scan sources and meshes in the NASTRAN® file format, as well as how to prepare them for analysis in COMSOL Multiphysics®.
New Reacting Flow Multiphysics Interface Delivers Greater Flexibility
Get an introduction to the Reacting Flow interface, which can be used to simulate fluid flow and reactions in gases and liquids in COMSOL Multiphysics®.
Minimize Your Model File Size with Storing Solution Techniques
Get a demonstration of some tools and techniques for storing selected output quantities in COMSOL Multiphysics®, as well as minimizing model file sizes and the time required to display data.
How to Reuse a Deformed Shape as a Geometry Input
Let’s say you deform a shape in your model (say, by applying a mechanical load to a thin piece of metal) and want to use this deformed object as part of a new geometry construction. How?
How to Integrate External Data Files with Your COMSOL® App
Have you ever wanted to integrate your simulation apps, built with the Application Builder in COMSOL Multiphysics®, with external data files? In this blog post, we show you how…
How to Model Electrochemical Resistance and Capacitance
Get an overview of the theory and modeling considerations for resistive and capacitive effects, which are fundamental to the understanding of electrochemical systems.
Compressibility Options and Buoyancy Forces for Flow Simulations
Here, we cover the various formulations for fluid flow equations in COMSOL Multiphysics® and when it’s best to use each option.
How to Build Gear Geometries in the Multibody Dynamics Module
You can use the built-in, highly parameterized gear parts in the Part Library to build a wide range of parallel and planetary gear trains for analysis in the COMSOL® software. Learn how here.
Design an App to Efficiently Model the Flash Method Procedure
The flash method is widely used to measure the thermal conductivity of materials. The Flash Method demo app can be used to perform a numerical simulation of the flash method procedure.
Part 2: Modeling the Harmonic Excitations of Nonlinear Systems
Learn how to model the harmonic excitations of a linear system in COMSOL Multiphysics® in this comprehensive tutorial post. Part 2 of 2.
Part 1: Modeling the Harmonic Excitations of Linear Systems
Learn how to model the harmonic excitations of a nonlinear system in COMSOL Multiphysics® in this comprehensive tutorial post. Part 1 of 2.
How to Model Contact Fatigue in COMSOL Multiphysics®
Contact fatigue occurs when two parts in contact experience a time-dependent contact pressure. Learn how to model this structural phenomenon in COMSOL Multiphysics®.
Streamline Your Simulation Workflow with Named Selections
Learn how to use named selections to streamline your simulation workflow in COMSOL Multiphysics®. Includes step-by-step instructions and an embedded tutorial video.
How to Model Adhesion and Decohesion in COMSOL Multiphysics
Did you know you can simulate objects that stick together once they come in contact (adhesion) as well as those that pull apart (decohesion), including full cohesive-zone modeling?
How to Build a Parameterized Archimedean Spiral Geometry
Learn how to build a parameterized geometry of an Archimedean spiral by using analytic equations and their derivatives to define a set of spiral curves.
How to Analyze an Induction Motor: A TEAM Benchmark Model
In this blog post, we demonstrate the modeling of the three-phase induction motor described in Testing Electromagnetic Analysis Methods (TEAM) workshop problem 30a.
How to Dynamically Modify Geometries in Simulation Apps
We demonstrate how to use the Method Editor to create an app for: 1.) dynamically creating and modifying geometry parts and 2.) applying appropriate physical specifications and mesh.
How to Implement a Delay in Your Thermostat Simulation
When simulating a thermostat in COMSOL Multiphysics®, you can implement a delay for short-cycling in addition to the on and off setpoints. See how here.
Connecting the Dots Between Theory, Model, and App
We explore how the concepts of theory, model, and simulation app connect and relate to each other, using the example of analyzing buckling in a truss tower design.
How to Make Boundary Conditions Conditional in Your Simulation
In some modeling scenarios, you may want to apply a boundary condition to only part of the geometrical boundary or only under certain conditions. Learn how to do so here.
How to Model Solar Concentrators with the Ray Optics Module
Learn how to predict the concentration ratio for an idealized, parabolic solar reflector using Monte Carlo ray tracing in the Ray Optics Module, an add-on to COMSOL Multiphysics®.
Thermal Modeling of the Air Flow Inside and Around Your House
Learn step by step how to set up a thermal model of the airflow in and around a house, including how to implement tabulated meteorological data from the historical ASHRAE database.
Using the New Ray Tracing Algorithm in COMSOL Multiphysics® 5.2a
The ability to trace rays in unmeshed domains, and even release and trace rays outside a geometry, has been available in the Ray Optics Module as of COMSOL Multiphysics® version 5.2a. Learn more.