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28.5.5 Modifying Pathline Attributes

If you are creating animations of existing pathlines, you may want to change the number of steps used in the computation of the pathlines. This allows you to animate pathlines advancing through the domain. To do so, select the pathlines in the Names list in the Scene Description panel and then click the Pathlines... button to open the Pathline Attributes panel (Figure  28.5.6).

Figure 28.5.6: The Pathline Attributes Panel
figure

In the Pathline Attributes panel, set the new maximum number of steps for pathline computation ( Max Steps). After you change the value and click Apply, the selected pathline will be recomputed and redrawn.



An Example of Pathline Modification for an Animation


You can use the following procedure to animate pathlines from step 2 to step 101 (for example):

1.   Generate the plot of pathlines using the Pathlines panel.

2.   In the Scene Description panel, select the pathlines in the Names list and click the Pathlines... button to open the Pathline Attributes panel.

3.   Change the value of the maximum number of steps to 2, and click Apply.

4.   Open the Animate panel and create key frame 1.

5.   In the Pathline Attributes panel, change the value of the maximum number of steps to 101, and click Apply.

6.   Set key frame 100 in the Animate panel.

7.   Play back the animation.

When you play back the animation, FLUENT will animate the pathlines so that they advance one step in each frame.


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