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CFD Post-processing of Multiple Reference Frame (MRF) and Rigid-Body Motion

Multiple Reference Frame (MRF) models simplify the modeling of turbomachinery, allowing you to simulate with a steady-state model what would normally look to require a transient CFD simulation.

Those doing CFD post-processing from simulations of fans, pumps, stir tanks, HVAC, and other rotating machinery often want the parts to rotate.  We have developed a specific tool to provide part rotation using the python scripting language.  This tool provides rigid body motion according to several options you can provide. Combining rigid-body motion with pathlines provides a nice looking and logical recreation of the moving parts in your Multiple Reference Frame (MRF) CFD simulation.

A couple of frequent questions from users of EnSight are answered in this screencast such as:

– Can I make parts rotate or appear to rotate in EnSight

– I solved my CFD simulation using Multiple Reference Frame (MRF) – how do I use that in EnSight

– what is the difference between streamlines and pathlines

– how do I make pathlines

– what are some useful specialized tools that come with EnSight

 

[mediacore link=”http://ceisoftware.mediacore.tv/media/use-of-the-rigid-body-motion-userdefinedtool-for-m” height=”225″ width=”400″]

This Rigid-body motion tool is found in standard EnSight 9 and EnSight 10, in the User-Defined Tools, Visualize section, Rigid-Body Motion.

User-defined Tool > Visualize > Rigid-body Motion
User-defined Tool > Visualize > Rigid-body Motion
This video uses EnSight 9, but the same tool and process also works in EnSight 10.  We just didn’t update the movie, since there was no need.

Related Information

Find other useful Python tools that are not included in EnSight over at PythonExchange www.pythonexchange.com

Do you want to know a little about writing your own Python tool, see this screencast.

Want to loop over a list of parts in your Python script, see this screencast.

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