Active discussions in the forum
Division by zero, Failed to evaluate variable, Failed to evaluate Jacobian of expression
Hello, I am using comsol to model conjugate heat transfer and fluid mechanics under turbulent flow regime. But I keep getting this error... Read more »
Posted by Faiz Raihan 4 hours ago
Parameter estimation + Parametric sweep
Hi, I am tring to perform Parameter Estimation on a set of measured data. I am using a Stationary Solution to solve the Helmholtz Eq and a Parametric Sweep to vary the width of a wire. As you may be already thinking, I am... Read more »
Posted by Owen Medeiros 8 hours ago
Delete user defined material
Hello fellow COMSOLers, is there a way to remove materials from the user defined materials library. I already checked the forum and manual but cannot find anything. Any advice is greatly appreciated. Best regards, André Read more »
Posted by Andre Rieger 10 hours ago
lock symbol in node
Can anyone explain what this lock symbol denote in comsol? Screenshot attached. Looking for a quick reply. Read more »
Posted by Swati Gupta 11 hours ago
Electric switch in circuit
dear all, Hoping all is well with all of you.Kindly how to make a switch in electric circuit.. kindest regards samar akef Read more »
Posted by Samar Akef 12 hours ago
Boundary Condition
I am trying to insert a parabolic boundary condition in the inlet of my pipe flow model. The equation is like U=Umax(1-(R/Rmax)^2); I do know the value of Rmax & Umax. But R is a variable one. How can I insert these in my... Read more »
Posted by Rakib Hossain 16 hours ago
View all discussions | Start a new discussion
COMSOL Blog
Analyzing Vibrations in Rotating Machinery Due to Bearing Misalignment
While aligning bearings can help extend the lifetime of rotating machinery, doing so can be expensive. To determine the amount of alignment that delivers the best... Read more »
Automatic Time Step and Order Selection in Time-Dependent Problems
When tracking the log for a time-dependent simulation, you can observe that the solver uses varying time steps and discretization orders. During the simulation, you... Read more »
Building a Magnetohydrodynamic Multiphysics Model in COMSOL®
The COMSOL Multiphysics® software is built from the ground up to be multiphysics capable so that the user can easily combine models representing different physics... Read more »
Using Simulation Software in the Courtroom
Simulation software is increasingly used in diverse fields of science and engineering. What about in the field of law? A simulation is inherently an imitation or... Read more »
COMSOL Multiphysics® Version 5.4 Named 2018 Product of the Year
In 2018, COMSOL Multiphysics® version 5.4 was chosen as a Tech Briefs magazine Readers' Choice Product of the Year. Last week, Tech Briefs magazine presented COMSOL... Read more »