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- Select View results->Default analysis/step->RANSOL->103.0 throught through the menu bar or clicking on
- Select View results->Stream lines->Along line->Velocity throught through the menu bar
With this option you can define a segment along which several start points will be chosen. The number of points will also be asked for, including the ends of the segment. In the case of just one start point, this will be the center of the segment.
NOTE: This action could also be done clicking on 
in the icon bar. In this case we have to select the way to define the start point through the mouse menu. In this case select Contextual->Along line.
We want to create several stream lines lines along the model doing 2 lines.
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- Set Show arrows , with Size: 30 and Spacing: 10
- You may play with the diferent different stream line Detail level: Points, Ribbons or 4 sided prisms. If the ribbons type is selected you may adjust the initial swirl angle to rotate the ribbon.
- Close the window
- Select View results->Delete->Stream lines->All
NOTE: A way to achive achieve the best results is to first create a cut of the volume mesh throught through the region of interest and then use these nodal information as support to create stream lines and its options: along line, in a quad, etc. 