Active discussions in the forum
Announcement: Application Builder and COMSOL Server explained by Bill Vetterling
Hello COMSOL Community, Bill Vetterling, co-author of Numerical Recipes, reviews the Application Builder and COMSOL Server for Physics... Read more »
Posted 1 week ago
Difference in 3D simulation of duct to rotated 2D simulation?!?
Hi everyone! I created a simulation for a circular duct which is heated by a constant heat flux. Does it make a difference to simulate a 3 dimensional geometry or a 2 dimensional geometry (rectangle: radius*length; rotated... Read more »
Posted by Fabian Holz 55 minutes ago
undefined pressure variable error
Hi! I am new to comsol and I created this toy model to play with in order to get a better understanding. The model intends to simulate the rizing air in a cylinder. The cylinder has an inner and outer radius. Between these... Read more »
Posted by Lukas von Platen 1 hour ago
How to calculate the force on a permanent magnet due to surrounding winding current
This should be a simple model, but I am very new to comsol and cannot find the relevant tutorials. I have a permanent magnet, then an air gap, then a coil going around the permanent magnet. To model this I have created... Read more »
Posted by Craig Hickman 3 hours ago
Gravity effect
Hi, Sorry for my newbie question. I'm trying to simulate 2D two-phase flow in porous media. I'm wondering whether COMSOL considers gravity effect when applying Two-Phase Darcy's Law physics. Thank you, Jiri Read more »
Posted by Jiri Beranek 8 hours ago
A "Gloabl equation" problem
A PDE coupled with an ODE, the PDE is the heat transfer equation contain source term, like rho*Cp*dT/dt=k*d^2T/dx^2+S (one dimension). the ODE is dfc/dt=(Tm-T)*switch(t), where Tm is a constant, T is the temperature (independent... Read more »
Posted by Xiaoyi Yu 10 hours ago
square pulse train
Hello Everybody, I am trying to make a square pulse train in Comsol without Matlab. The train should have a period of 0.01s, but the pulse itself is just 8e-9s. One pulse is no problem with the smooth functions (flc2hs),... Read more »
Posted by Christoph Mannal 10 hours ago
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COMSOL Blog
Tips and Tricks for Modeling Induction Furnaces
Today, we are pleased to introduce a new guest author, Vincent Bruyere of SIMTEC, who shares insight into the modeling of induction furnaces. Induction heating has... Read more »
Lab-on-Paper Technology Enhances Medical Diagnostics
In the diagnostics industry, developing devices that enable autonomous testing is an area of focus. One such device that has been available commercially for many years... Read more »
Watch COMSOL Multiphysics Videos Online
Our Video Gallery is home to nearly 150 videos that teach, inform, and maybe even entertain you, by highlighting various elements of COMSOL Multiphysics in tutorials... Read more »
The Motions and Mechanics of a Truck-Mounted Crane
Truck-mounted cranes are often used for load handling. In many cases, this involves carrying heavy materials, which can exert large forces on various parts of the... Read more »
Your Invitation to the COMSOL Conference 2015
It's that time of year again... We've started planning for this year's big multiphysics simulation event and I am excited to share some of the details with you. The... Read more »
Model Exchange
As part of COMSOL’s commitment to the Multiphysics Modeling community, we offer a forum where COMSOL models and other material can be shared; the Model Exchange »
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