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1249: Solution number is out of range

You compute a distributed parametric sweep on a cluster. When processing the results some values are missing or you get errors such as "The solution number is invalid" or "Solution number is out of range". In some...
Version: 5.3a - Platform: All Platforms

1248: When changing the value in the Expression cell in my table, the...

I am running COMSOL Multiphysics on Windows 10, and when trying to change the value in the Expression cell in one of my tables, the value is not updated. This issue has started appearing in Windows 10, version 1803. It...
Version: 5.2a,5.3,5.3a - Platform: Windows

1247: Unexpected error when running application

When running my application, I get an unexpected error and after clicking view log the top of the stack trace looks like: com.comsol.model.data.ModelLockedException: The node *** is removed. at...
Version: 5.3a - Platform:

1246: Migrating moving mesh models to 5.3a

This knowledge base entry addresses the following questions: Why does my moving mesh model set up in a previous version fail to solve in 5.3a? How do I switch to using the new moving mesh functionality? Starting...
Version: 5.3a - Platform: All Platforms

1245: Improving runtimes for transient models with step changes in loads

I am solving a transient model which has loads that change instantaneously in time, but the solver is taking a very long time to compute the solution. When solving a transient model, be aware that the default behavior...
Version: All versions - Platform:

1243: Out of Memory

The error "Out of Memory" occurs. Of the available memory (RAM and virtual memory), one section, the Java heap, is reserved for Java. The rest of the memory will be available for meshing and solving. If you receive the...
Version: All versions - Platform: All Platforms

1242: Unexpected error thrown by the Method Editor

I run COMSOL Multiphysics on Windows 7. When trying to access the Method Editor in the Application Builder, I get an unexpected error. When opening the log file, the top of the stack trace looks like...
Version: All versions - Platform:

1241: Running Client-Server consumes too many licenses or gives an error...

I am having problems running COMSOL Multiphysics 5.3a in Client-Server mode. The issue manifests itself in two different ways. If you are using a multi-seat Floating Network License (FNL), you may notice from the...
Version: 5.3a - Platform: All Platforms

1240: Manually Setting the Scaling of Variables

Transient problems often begin with all fields at an initial value of zero. During the solution the fields may increase by a great deal, or only very slightly. The default behavior of the software is to assume a...
Version: All versions - Platform:

1239: Two-Phase Flow Modeling Guidelines

My model includes Two-Phase Flow, Level Set or the Two-Phase Flow, Phase Field interface and it is either not converging, taking a very long time to solve, or not converging to a reasonable result. This article...
Version: - Platform: