Support Knowledge Base

1127: Improving convergence in nonlinear time dependent models

My time dependent model solves without any problem as long as I use only linear materials. How can I get it to converge with a nonlinear material?   When a time dependent solver has trouble converging, its default...
Version: 4.2 - Platform: All Platforms

1118: Resolving time-dependent waves

I am solving a time-dependent wave problem, but the solution does not look quite right. I was expecting a smooth propagating waveform but see mostly noise.   The accuracy in a model solving an equation for...
Version: 4.2 - Platform: All Platforms

1085: Error: File contains no model

I am using COMSOL Multiphysics 4.0. When trying to open a model file, I get an error message saying 'File contains no model'. Model created in a newer COMSOL version The most common reason for this error message is...
Version: 4.0,4.0a,4.1,4.2 - Platform: All Platforms

966: Background and Theory References on Equation-Based Finite Element...

Where can I find documentation on the theoretical background of the algorithms and techniques used by COMSOL Multiphysics for Finite Element Analysis? The COMSOL Multiphysics manuals provide a good deal of theoretical...
Version: 4.1,4.2 - Platform: All Platforms

935: Data import

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: 3.5a,4.0,4.0a,4.1,4.2,4.2a,4.3,4.3a - Platform: All Platforms

Can COMSOL Multiphysics import meshes, topological data, and images? ##Importing Meshes Simpleware and Materialise can export volumetric meshes created from 3D scans, that can be directly imported into COMSOL. (...
Version: 4.2a,4.3,4.3a - Platform: All Platforms

Where can I purchase COMSOL Multiphysics? To purchase COMSOL Multiphysics, please contact your nearest sales office.
Version: All versions - Platform: All Platforms