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1181: Circular function dependency detected

The following error occurs: "Circular function dependency detected." If you get this error, functions have been defined in terms of other functions in a chain. Check the user-defined functions in the model and make...
Version: All versions - Platform: All Platforms

1180: Invalid degree of freedom name

The following error message appears: "Invalid degree of freedom name." COMSOL does not recognize the name of a degree of freedom. Check the names of dependent variables that you have entered so that they match the...
Version: All versions - Platform: All Platforms

1179: Matrix has zero on diagonal

A "Matrix has zero on diagonal" error occurs. When the equations have a structure such that the stiffness matrix (Jacobian matrix) has zeros on the diagonal, it is not possible to use the following linear system...
Version: All versions - Platform: All Platforms

1178: COMSOL crashes when trying to access the documentation

COMSOL crashes when I try to access the documentation on my Linux Machine. COMSOL 5.1 and later In order for the help system to work on Linux, the webkitgtk package needs to be installed: Debian Linux and Ubuntu...
Version: All versions - Platform: Linux

1177: ERROR: hexadecimal value 0x00, is an invalid character

When trying to start COMSOL, I get a long error message that starts with: '.', hexadecimal value 0x00, is an invalid character. at System.Xml.XmlEncodedRawTextWriter.InvalidXmlChar(Int32 ch, Char* pDst, Boolean...
Version: All versions - Platform: Windows

1175: COMSOL Interprets Key Strokes as Shortcuts in Linux

I am running COMSOL 4.4 on Linux and when I press certain keys (such as S, N or A) they are interpreted as shortcuts. With the release of the first Update to COMSOL 4.4, this seems to be fixed for most Linux Operating...
Version: 4.4 - Platform: Linux

1174: COMSOL freezes when clicking on the Initial Values node in a...

When clicking on the Initial Values node of the Turbulent Flow interface, the table for entering the initial velocity in the settings window for the Initial Values node starts toggling between 2 different sizes. This...
Version: 4.4 - Platform: Windows

1173: Missing Documentation

The documentation I see in the Integrated Help window does not agree with what I see in the Settings window for a particular feature. We are aware of this and are working on a fix. The reason this happens is...
Version: 4.4 - Platform: All Platforms

1172: Solving time dependent CFD simulations

A common mistake when running transient fluid flow studies with COMSOL Multiphysics is to start the simulation with conflicting boundary conditions. Let's take a simple example to illustrate this issue. We will compute...
Version: All versions - Platform: All Platforms

1171: Manual tuning of the Contact Pair condition.

In COMSOL 4.3b, the contact pair conditions were changed to improve manual tuning of the augmented Lagrangian contact formulation. In the augmented Lagrangian method, the penalty factor controls how “hard” the...
Version: 4.3b,4.4,5.0,5.1,5.2,5.2a,5.3 - Platform: All Platforms