Step-by-step guide on enhanced visualization for your CFD reports

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Published on
2016-12-16
Written by
Chris Bennett

Using STL format files allows you to use the original geometry in ANSYS CFD-Post. This may be useful to add context to images of certain kinds of flows, in particular internal flows.

The easiest route to using the original geometry in ANSYS CFD-Post is to generate an STL file from the original CAD in ANSYS SpaceClaim.

The main restriction with using STLs in visualization is that an STL file is a surface file. This means that if you cut through it as part of the visualization (e.g. using Iso Clip) you get the appearance of two edges rather than a solid object.

Step-by-step guide on enhanced visualisation for your CFD reports  vs Step-by-step guide on enhanced visualisation for your CFD reports

You can get around this by slicing the geometry in SpaceClaim.

Steps

1. Work out best view from original results.

Step-by-step guide on enhanced visualisation for your CFD reports

 

2. Slice original geometry in SpaceClaim.

Step-by-step guide on enhanced visualisation for your CFD reports Step-by-step guide on enhanced visualisation for your CFD reports

 

3. If you want different components to have different colors in the final plot export each needs to be exported separately (Save as  -> .STL. You may need to go into Options and switch STL output to ASCII format).

Step-by-step guide on enhanced visualisation for your CFD reportsStep-by-step guide on enhanced visualisation for your CFD reports Step-by-step guide on enhanced visualisation for your CFD reports

 

4. In CFD-post import STL file as surface data (selecting .STL as the filter format).

Step-by-step guide on enhanced visualisation for your CFD reports

 

5. Apply texture under render option for the new STL surface. There is a limited selection but there is also the ability to use a custom image.

Step-by-step guide on enhanced visualisation for your CFD reports

 

6. Compose image.

Step-by-step guide on enhanced visualisation for your CFD reports

 

7. The same technique can be used to construct and import any surface into post. Where the surface coincides with solution data it is possible to plot data on that surface.

Author: Chris Bennett, Senior Engineer

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