Sweep surfaces can be used when you want to examine the grid, contours, or vectors on various sections of the domain without explicitly creating the corresponding surfaces. For example, if you want to display solution results for a 3D combustion chamber, instead of creating numerous surfaces at different cross-sections of the domain, you can use a sweep surface to view the variation of the flow and temperature throughout the chamber.
The basic steps for generating a grid, contour, or vector plot using a sweep surface are as follows:
Sweep Axis, specify the (
Z) vector representing the axis along which the surface should be swept.
Compute to update the
Min Value and
Max Value to reflect the extents of the domain along the specified axis.
Display Type, specify the type of display you want to see:
Vectors. The first time that you select
FLUENT will open the
Contours panel or the
Vectors panel so you can modify the settings for the display. To make subsequent modifications to the display settings, click the
Properties... button to open the
Move the slider under
Value (which indicates the value of
) to move the sweep surface through the domain along the specified
FLUENT will update the grid, contour, or vector display when you release the slider. You can also enter a position in the
Value field and press the
<Enter> key to update the display.
If you want to save the currently displayed sweep surface so that you can use it for a different type of plot (e.g., a pathlines plot or an XY plot) or combine it with displays on other surfaces, click
Create... to open the
Create Surface panel (Figure
28.1.27). Enter the
Surface Name and click
Figure 28.1.27: The
Create Surface Panel
The surface that is created is an isosurface based on the grid coordinates; the contour or vector settings are not stored in the surface.
You can also animate the sweep surface display, as described below, rather than moving the slide bar yourself.
Animating a Sweep Surface Display
The steps for animating a sweep surface display are as follows:
Sweep Axis and
Display Type as described above.
Animation, enter the
Initial Value and
Final Value for the animation. These values correspond to the minimum and maximum values along the
Sweep Axis for which you want to animate the display.
Specify the number of
Frames you want to see in the animation.