Active discussions in the forum
"volume force" in Laminar flow is not working
Hi, I want to calculate the drag force on a sphere moving through the fluid. I am using "laminar flow" with axisymmetry. Normally, my code is working perfectly fine and giving me the correct value of the drag force, same as... Read more »
Posted by Harsh Soni 1 hour ago
Strain plots in structural analysis
I am trying to obtain the various strain plots from a structural analysis of a thin film, fixed at the bottom and loaded from the top in compression. every time I try to plot strain I get the following error: Undefined... Read more »
Posted by Sam 11 hours ago
Eigenfrequency computation
What algorithm is used in comsol in order to compute the eigenfrequency in micro ring resonators? We can changed the number of eigenfrequency manually and corresponding Q factor therefore I was wondering which algorithm is used... Read more »
Posted by Farhat Abbas 1 day ago
Effective Stress Tensor
Hi; I am trying to simulate stress concentration around the borehole. I have defined the in situ stress tensor by the initial strain and stress subnode, and the pore pressure by the external stress subnode. I want to show the... Read more »
Posted by Sep Hnd 2 hours ago
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One Study with stationary and time dependent steps
Hello, i want to run one study in which i have different types of steps. First a stationary to solve a flow, afterwards solving a time-dependent to solfe a heat transfer simulation for some seconds, afterwards solving a... Read more »
Posted by Henrik Bode 7 hours ago
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COMSOL Blog
Modeling Copper Electrodeposition on a Circuit Board
If you were to take apart almost any modern electronic product, you would find a printed circuit board (PCB). A closer look at this common component reveals a pattern... Read more »
Modeling a MOS Capacitor with the Semiconductor Module
Silicon planar devices, imaging sensors, and microprocessors often include a metal-oxide-silicon (MOS) capacitor. To ensure that these devices perform as expected in an... Read more »
Happy Birthday, Blaise Pascal
What sparked Blaise Pascal's interest in mathematics? One possibility is that when Pascal's father tried to put off teaching it to his son, it didn't go as planned.... Read more »
How to Perform a Nonlinear Distortion Analysis of a Loudspeaker Driver
A thorough analysis of a loudspeaker driver is not limited to a frequency-domain study. Some desirable and undesirable (but nonetheless exciting) effects can only be... Read more »
Fueling Up for Autonomous Driving with Optimized Battery Designs
After World War II, a boom in the economy caused Americans to buy a record number of cars (leading to serious levels of pollution). Today, we have more energy-efficient... Read more »