Stream Lines |
Menu: Vies results->Stream lines
With this option you can display a stream line, or in fluid dynamics, a particle tracing, in a vector field. After choosing a vector result, using the default analysis and step selected, the program asks you for a point from which to start plotting the stream line. This point can be given in several ways:
The best way to choose initial points for the stream lines is to cut the mesh through the place where the user wants the stream lines, and then select the nodes of this cut.
When viewing Stream Lines, labels can be drawn to show the times at the start and end points of the stream line.
Stream lines can also be deleted and their color changed (green by default).
Stream lines are supported for results defined over nodes.
The following options can be chosen for Stream Lines:
Menu: Options->Stream Lines
- Monochrome: all the stream lines are drawn with the same colour, which can be adjusted with 'Change colour'.
- Stream contour filled: the colour of the streamlines changes, ala Contour Fill acording to the modulus of the vector used to create the dtream line.
- Result contour filled: the stream lines are drawn with the colour scale of the current contour fill, i.e., the current contour fill is also drawn over the stream lines. If no contour fill is displayed, then the monochrome colour is used.
- None: No labels are drawn.
- 0_End: Labels are drawn according to the following convention: 0 at the start of the stream line, and the total time taken for the particle to travel at the end.
- Ini_End: Labels are drawn according to the following convention: 0 at the chosen point, with - time before at the beginning of the stream line and + time after at the end.
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The type of stream can be:
- points : showing the points calculated for the stream lines and used to draw them.
- ribbons: stream ribbons showing the swirl of the velocitys field
- 4 sided prisms: stream 'tubes' with constant width.