Active discussions in the forum
complex relative permittivity and permeability
Hello, Do you know how to consider the complex part of relative permittivity and permeability? I am using Comsol Multiphysics, Eletromagnetic waves/frequency domain. I would like to put also the complex part of these two... Read more »
Posted by Giulia Luparia 12 minutes ago
Can someone help with a comsol error?
I tried to build a model of free surface problems by using the coefficient PDE.BUT Until I finished the model and dad this error: There are 163 void equations (empty rows in matrix) for the variable comp1.phi. at coordinates: ... Read more »
Posted by Wang Zhi-Cheng 3 hours ago
Not getting erosion plot
I am not able to get erosion plot while using erosion term with particle tracing? can any one guide me pls.... Read more »
Posted by Vipul Rokad 5 hours ago
how to set a conditions if an error happens in livelink matlab?
Hi, i am running a wear analysis of a pin-on-plate case. According as the pin worn, the contact area change, then the initial selection of the contact have to change for avoiding numerical errors related to an insuficient or... Read more »
Posted by Yesenia Villamizar 8 hours ago
Problems using mphinterp for extracting Solid.Tn data.
Hi.I'm modeling a contact problem between two surfaces in a 2d problem as shown in the attached figure. I cannot get the data because i got this error: "Wrong dimension of points searched for in postinterp." i use mph inter... Read more »
Posted by Yesenia Villamizar 8 hours ago
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COMSOL Blog
How to Convert Point Cloud Data to Surfaces and Solids
Not all analysis projects start with a CAD model. Sometimes the only data you have available is a set of points, also known as a point cloud. In this blog post, we will... Read more »
Simulating a Silicon Quantum Dot in a Uniform Magnetic Field
As of version 5.6 of the COMSOL Multiphysics® software, in the Semiconductor Module, we have introduced the capability of handling multicomponent wave functions to the... Read more »
Happy Birthday, Friedrich Paschen
When current moves through a gas, it can reveal the power of electricity in a visible way. Along with lighting a room (via a fluorescent bulb) or the sky (as a... Read more »
Using Global Equations to Introduce Fully Coupled Goal Seeking
Today, we will introduce a goal-seeking equation into a model in the COMSOL Multiphysics® software that is used in combination with a fully coupled approach to solving... Read more »
Introducing Goal Seeking into the Segregated Solver
One of the core technologies within the COMSOL Multiphysics® software is the segregated solution approach, which is used within nonlinear multiphysics (and... Read more »