Step # 6: Adaptation Sensors

"selection of the adaptation function is critical"

One of the most important steps in any mesh-adaptation is determining which aspect of the solution best indicates where the mesh size must change. The choice is often problem dependent: the Mach number may work well for external aerodynamics but can be irrelevant for other flows. You can, as a post-processing step, derive a function from the flow field as shown in this video. The function you evaluate, as we shall see subsequently, can then be used to drive the mesh size.

In the next issue on this topic: Create Sources to Adapt the Grid

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Interactively debug Python/Glyph scripts

"set breakpoints and display the contents of variables"

Creating a Glyph script with Pointwise is easy: record what you're doing, and you can replay it, as shown in this video. If you want to add your own control logic, or otherwise improve the recorded script, you can edit the recorded TCL script. But as we've seen earlier, Python can make this easier: watch this video to see how you can use an IDE to debug Python applications with Pointwise.

In the next issue on this topic: Adaptation with Pointwise and CFX

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Radial and Other Slices

"One way of understanding volumetric data is to take a slice out of it"

Slicing your 3D data is easy in Tecplot: a single click can give you what you want. But what if you want radial slices? Or theta slices? Or to clip a slice? Or to automate slice extracion? Or ...

You could use Value Blanking. Or create a variable as described in this article. Or, as in this script, create a new zone and interpolate the solution onto it. Or write a Python script such as this one. Or a macro such as this one. Or, of course, ask for support!

In the next issue: TecIO for Parallel File Export

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