Computational Fluid Dynamics: Difference between revisions
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[[Image:cfd_slices2.png|1000px]] | [[Image:cfd_slices2.png|1000px]] | ||
==Stream Tracers - lines and tubes== | ==Stream Tracers - lines and tubes== | ||
*'''File → Open → Examples → disk_out_ref.exo.'''. On the '''Properties''' tab, click '''Apply'''. | *'''File → Open → Examples → disk_out_ref.exo.'''. On the '''Properties''' tab, click '''Apply'''. | ||
*'''+X''' | |||
*'''Filters → Common → Stream Tracer'''. '''v'''. Seed Type: '''Point Cloud'''. Uncheck '''Show Sphere'''. '''Apply'''. | *'''Filters → Common → Stream Tracer'''. '''v'''. Seed Type: '''Point Cloud'''. Uncheck '''Show Sphere'''. '''Apply'''. | ||
*Color by: '''v'''. | *Color by: '''v'''. | ||
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*Color by: '''temp'''. | *Color by: '''temp'''. | ||
*'''View → Color Map Editor → Presets''' (the little envelope with a heart)''' → Black Body Radiation'''. | *'''View → Color Map Editor → Presets''' (the little envelope with a heart)''' → Black Body Radiation'''. | ||
*'''Reset''' | |||
[[Image:cfd_streamtracer1.png|1000px]] | |||
Revision as of 23:17, 12 November 2021
Visualizing Computational Fluid Dynamics
This tutorial shows common visualization techniques for cfd datasets. We will be using the dataset disk_out_ref.exo, found in Paraview under File/ Open/ Examples. It has a vector field in it called V.
Slices
- File → Open → Examples → disk_out_ref.exo.. On the Properties tab, click Apply.
- +X
- Filters → Common → Slice. Apply. Unselect the Show Plane.
- Color by: v.
- In the pipeline browser, select disk_out_ref.exo
- Filters → Common → Slice. Y Normal. Apply. Unselect the Show Plane.
- Color by: pres.
- View → Color Map Editor → Presets (the little envelope with a heart) → Turbo.
- With the mouse, rotate the slices around so you can see both surfaces.
Stream Tracers - lines and tubes
- File → Open → Examples → disk_out_ref.exo.. On the Properties tab, click Apply.
- +X
- Filters → Common → Stream Tracer. v. Seed Type: Point Cloud. Uncheck Show Sphere. Apply.
- Color by: v.
Lines don't color as nicely as surfaces. Lets add a tube filter around each streamline.
- Filters → Search. Type Tube. Apply.
Now, we want to know which directions the particles are moving. We will use a glyph filter. Note we place the glyph filter on the streamline, not the tube.
- Select StreamTracer in the Pipeline Browser.
- Filters → Common → Glyph. Glyph Type: Cone. Orientation Array: v. Scale Array: v . Very Important - Scale Factor select the recycle button to the right. Apply.
- Color by: temp.
- View → Color Map Editor → Presets (the little envelope with a heart) → Black Body Radiation.
- Reset
