База знаний поддержки

All Solutions

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:

1238: Reducing the size of your COMSOL Multiphysics file

I would like to reduce the size of my COMSOL Multiphysics model file. There are several things that you can do to reduce the file size: First, COMSOL saves files in either a compressed or uncompressed state. You can...
Version: All versions - Platform:

1236: Problems launching COMSOL Server™ 5.3 with MATLAB®

In Windows®: I have a COMSOL Server™ License with LiveLink™ for MATLAB®. When attempting to launch LiveLink™ for MATLAB® using the desktop icon COMSOL Server 5.3 with MATLAB, COMSOL Server™ starts listening...
Version: 5.3 - Platform:

1235: Issues after updating COMSOL Multiphysics 5.3

After installing an update for COMSOL Multiphysics 5.3 I have one of the following issues When launching COMSOL Multiphysics, I get an Unexpected Error or a message that the client and server versions do not match. I...
Version: 5.3 - Platform: All Platforms