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All Solutions
I cannot run COMSOL Multiphysics on my system, and I get a license error message. When I look in the license manager log file I see this:
9:55:20 (lmgrd) lmgrd running as root: 9:55:20 (lmgrd) This is a potential...
Version: 3.5a,4.0 - Platform: Windows
Can COMSOL Multiphysics handle polar, spherical, and cylindrical coordinates? And how can I define these coordinates? You can define your own variable transformation in COMSOL Multiphysics.
3D Spherical coordinates
If...
Version: 3.4,3.5 - Platform: All Platforms
Can I import measured data in COMSOL? For instance, I have tabulated data for the thermal conductivity at different temperatures, and I have a map of permittivities versus coordinates. How can I get COMSOL Multiphysics...
Version: 3.4,3.5,3.5a,4.0 - Platform: All Platforms
Troubleshooting graphics adapter problems Background
COMSOL Multiphysics relies on hardware accelerated graphics rendering for mesh visualization and postprocessing plots for 1D, 2D and 3D models. It is also used for...
Version: 3.4,3.5 - Platform: All Platforms
COMSOL dongle licenses are supported on the Windows platform. Please follow the steps below:
Install the COMSOL products on your PC using the license.dat file you received from your COMSOL sales representative. ...
Version: 3.5a,4.0 - Platform: Windows
How does COMSOL Multiphysics determine the time-step size? When solving a time-dependent problem in COMSOL Multiphysics, the timestep determination is per default automatic. Below is outlined the numerical methods...
Version: 3.5,3.5a - Platform: All Platforms
How can I model a multi-turn current-carrying circular or cylindrical coil with skin effect? How do I specify a fixed total current in each winding while leaving the spatial distribution of the current density free?...
Version: 3.4,3.5 - Platform: All Platforms
How do I compute time integrals in my time-dependent COMSOL Multiphysics model? How can I calculate a space integral? The best way to compute time integrals in a time-dependent problem is to introduce the integral...
Version: 3.5a - Platform: All Platforms
Can COMSOL Multiphysics be used to perform modal analysis of transmission lines? You can perform modal analysis of various transmission lines and waveguides by using the Perpendicular Waves application mode in the RF...
Version: 3.4,3.5,3.5a - Platform: All Platforms
Can I inspect the stiffness matrix of my problem? Providing you have MATLAB installed and activated the MATLAB interface you can use the assemble command to extract the stiffness matrix and other system matrices from...
Version: 3.5a - Platform: All Platforms
