Active discussions in the forum
Announcement: Now available: COMSOL 5.3 Update 2
Hello, I'm pleased to announce that COMSOL 5.3 update 2 is now available at: www.comsol.com/product-update This is a quick installation to keep your software current and stable. It applies to version 5.3 of COMSOL... Read more »
Posted 1 week ago
Announcement: COMSOL Conference 2017 - Submit your abstracts by *June 30th*
Hello COMSOL Community, Are you interested in presenting your simulation work at the COMSOL Conference in Boston or Rotterdam? Submit a short abstract here: https://www.comsol.com/conference/call-for-papers Submitted... Read more »
Posted 3 weeks ago
Problem in Global Equations defined variable
Hi all, Does anybody know how to fix this? I am simulating a cavity filled with incompressible fluid under external pressure. Following the COMSOL Blog: www.comsol.com/blogs/computing-controlling-volume-cavity/, I used the... Read more »
Posted by Shuai Ge 29 minutes ago
RF module: lumped ports and symmetry planes
Hi all, Is it possible to use a symmetry plane (using a PMC in my case) that would cut in half a uniform lumped port? I only found an old post about that, saying that in Comsol 3.5 it was not possible and you had to define... Read more »
Posted by Sami Karkar 3 hours ago
Mie scattering in 4.3
Hello, I have already seen some discussion about mid scattering of a gold nanosphere. But I the discussions I have consulted, no one has yet implemented a mie scattering program in Comsol 4.2 or 4.3 that works as the one in... Read more »
Posted by João Azevedo 5 hours ago
Calculation of dependent variables at boundary conditions
Hello everyone, I have a model where I am simulating heat transfer in soils. The question is: As I have the dependent variable T also as a boundary condition, for instance, convective heat in the surface is q=h(Text-T),... Read more »
Posted by Alexandre Martins Alves 6 hours ago
Sum of variables in different domain definition
Hello everyone, I would like to sum two variables define in two different domains. The first domain (1) is included in the second one (2) When i want to sum variables and plot it, i have only the plot of the intersection... Read more »
Posted by François Courtois 7 hours ago
Continuity in transport of diluted species
Hi: I´m working in a 3D model of a pipe cross junction with different velocity conditions, about chlorine distribution throught de cross section (see attached image please). My model only consist of 2 inlets, 1 with clean... Read more »
Posted by Daniel Hernández 7 hours ago
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COMSOL Blog
Designing a Butler Matrix Beamforming Network with RF Modeling
When looking for a cost-effective feed network, engineers can turn to the Butler matrix as a potential solution. This passive beamforming feed network is used with... Read more »
Why Should I Use Automatic Wall Treatment for My CFD Modeling?
Wall-bounded turbulent flows display extreme gradient close to the walls. The most accurate way to treat these gradients is to resolve them using a low Reynolds number... Read more »
How to Use Model Methods to Accelerate Your COMSOL® Workflow
Do you ever find yourself performing the same modeling operations over and over again in each new model file that you work with? Or do you work with colleagues who send... Read more »
How to Use Job Sequences to Save Data After Solving Your Model
Little-known functionality of the Study node is its ability to perform a programmatic sequence of operations, including solving; saving the model to file; and... Read more »
How to Generate Randomized Inhomogeneous Material Data
You can generate and visualize randomized material data with specified statistical properties determined by a spectral density distribution by using the tools available... Read more »
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