Active discussions in the forum
Pressure transmission between microdomes that are tangent to one another
Hello! I've encountered some problems with pressure transmission between microdomes that are tangent to one another. There seems to be a problem with the meshing at the contact points. I've tried form assembly and contact pair... Read more »
Posted by Valerie Tan 1 hour ago
Problem With Simple Conductive Heat Transfer Simulation
Hello, COMSOL noob here attempting a senior design project for school. I am attempting to model a very simple block of Mo (at room temp) placed onto a heated stage (at 250degC). However, my solution becomes a uniform... Read more »
Posted by Ian Phillips 7 hours ago
External Current Density in MF module and MEF module
Hello! Different magnetic fields are obtained using External Current Density in MF module and MEF module. I tried to add some currents (which come from MATLAB codes ) in a conductor sphere to obtain the induced magnetic... Read more »
Posted by 锋 余 4 hours ago
Circularly polarized TE11 mode
Hello everyone, Does anyone know how I can create circular polarization in a horn antenna by using TE11 as input? The antenna I'm currently working on is a hybrid mode horn antenna that receives TE11 as input on a circular... Read more »
Posted by Anna Tzatzopoulou 8 hours ago
summation of a matrix (vector)
The below post is related to an [archived discussion](/forum/thread/106131/cummulative-sum-in-comsol) *** [I want to calculate sum(A.B) where both A and B are matrix (vector) and also they are coefficient of a PDE ... Read more »
Posted by Mohammad Azadi Tabar 11 hours ago
Range of values for a variable gives different results than single value
In the frequency study step of my model, I noticed when I specify a range of values for a variable (in this case, the frequency of the incident wave), I get a different solution than if I pick one value and simulate only that... Read more »
Posted by Andrea 15 hours ago
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COMSOL Blog
How to Use State Variables in COMSOL Multiphysics®
With the release of version 5.5 of the COMSOL Multiphysics® software, there is a feature for tracking the state, or history, of your model. The State Variable feature... Read more »
Modeling Heat Transfer in Thin Layers via Layered Material Technology
A comprehensive set of functionality is available with the COMSOL Multiphysics® software to compute heat transfer in thin layers. A technical description of how this... Read more »
Evanescent Component of the Nonparaxial Gaussian Beam
The Gaussian beam is the most popular light source in wave optics. This blog post discusses the evanescent component of the nonparaxial Gaussian beam background field,... Read more »
Happy Birthday, Cecilia Payne-Gaposchkin
It’s a well-known fact that hydrogen is the most abundant element in the universe. The scientist behind the discovery? Astronomer Cecilia Payne-Gaposchkin (née... Read more »
Who Discovered the Integrated Circuit?
The year is 1952: The concept of the integrated circuit has just been introduced, and the heart of modern electronics is about to change forever... The Start of... Read more »