Active discussions in the forum
Announcement: Multiphysics Simulation: An IEEE Spectrum Insert 2017 is now available!
Hello! We are excited to announce that this year's edition of Multiphysics Simulation is now available online:... Read more »
Posted 11 hours ago
Error: dependent variables are not coupled to all degrees of freedoms in the model
Hello! I am trying to run the following model, but keep getting an error: "The following dependent variables are not coupled to all degrees of freedoms in the model: comp1.cPAHx, comp1.cPAx. - Domain: 1" Are there... Read more »
Posted by Lawrence Renna 1 hour ago
Seriously needing speed on large CFD-Mixer problems
We previously reported some benchmark data using COMSOL-CFD 5.2 on six different high-end computers, and we now report some more data. Our benchmark results are at odds with what one would expect from the information one... Read more »
Posted by David Doty 3 hours ago
Optics and Heat transfer simulation with Comsol
Hello. I simulate a low concentration PV with interest in ray trajectories and heat transfer. Therefore I am using a multiphysics model with Geometrical Optics module and Heat Transfer in Solids. My problem lies in combining... Read more »
Posted by vasilis dolianitis 4 hours ago
Weak form PDE
Hi, Can someone help me with implementing equation(img1) into Weak form PDE? I need integrate equation over the surface. Do you think that this is... Read more »
Posted by Štěpán Hrdonka 4 hours ago
What is the difference between surface integration and surface average
Please, I have a question? I am calculating the electric field in GaAs which has a gold nanostructure on the top. I want to know what is the difference between using surface integration and surface average. When I use both I... Read more »
Posted by Ahmad DArweesh 1 day ago
Structural Mechanics and Surface Tension
Hello, I am a beginner user of COMSOL and attempting to simulate the conformability/bending of polyimide thin-films to wet curvilinear topographies mainly due to surface tension and adhesive forces. Do you have any good... Read more »
Posted by Maria Cruz 9 hours ago
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COMSOL Blog
Simulating Extraordinary Optical Transmission at Terahertz Frequencies
Extraordinary optical transmission (EOT) is an important process in terahertz applications. Developing EOT applications could lead to improvements in medical imaging,... Read more »
Multiparameter Optimization with a Least-Squares Objective
Optimization is an efficient way to gain deeper knowledge of a model. Much like the different flowers in a colorful bouquet, you can perform a variety of different... Read more »
Designing an Ultrasensitive Imaging System Based on Mantis Shrimp
How might a rainbow-colored crustacean help improve cancer detection? The answer lies within the mantis shrimp's amazing visual system, which is one of the most... Read more »
When Stars Align (and Collide): A Historic Gravitational Wave Discovery
Imagine that reading books with no pictures and 12-point font is all you know. One day, someone hands you a pair of 3D glasses and takes you to see a movie. This is how... Read more »
What Is the Physics Behind a Counterweight Trebuchet?
The trebuchet is a large siege weapon that you might recognize from movies set in the Middle Ages or fantasy worlds. This weapon is built on the idea of converting... Read more »
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