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Exporting STL Files From CFD-GEOM |
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A CFD simulation process starts from an accurate representation of the boundaries that usually originates directly from CAD systems. STL and IGES are two of the most common output formats used as a starting point for mesh generation. STL (StereoLithography) files represent 3D surface geometries using a triangular mesh allowing unambiguous transfer of files from one system to another.
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Plotter Operations with CFD-VIEW |
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The Plotter operator in CFD-VIEW supports signal processing for Time History data. A previous user tip
– Digital Signal Processing using CFD-VIEW – shows how time history date can be made available and how to perform a PSD on a periodic signal. The aim of this new user tip is to list all options supported by the Plotter Operator.
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Setting the Viewer Size using Scripting in CFD-VIEW |
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When post-processing results, you often want to
compare two different models in the exact same position and size. The ‘Copy and
Past Viewpoint’ feature allows you to set the same position and angle to
display your model but, in addition to that, you might also want to have the
exact same size for the 2 windows you are comparing.
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Option to Not Write the Restart Solution Data to DTF Files |
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As simulation file sizes get bigger and bigger, we are always looking for ways to decrease the amount of data stored. A new option has been added to CFD-ACE+ that allows you to NOT save the restart data to the DTF file. This can reduce file size by as much as 40% for some large models.
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Taking the Difference between Surfaces via CFD-VIEW Scripting |
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In this user tip, we consider a CFD simulation that contains a volume
where a pressure loss occurs across a porous media (see Figure 1). If a
compressible flow has been assumed, the density could be affected due to that pressure drop.
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Wireframe Display in CFD-VisCART |
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Rotation,
zoom, pan and other graphical operations require re-drawing of the model in the
new position within the graphics window. When dealing with large models, these
operations can slow down considerably due to the huge amount of graphical data
that needs to be processed and re-drawn.
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