Natural Convection: Exercise 8—Analyzing Results
This exercise describes how the results are analyzed during and after the simulation. To hide CAD surfaces (not the fluid domain), switch between 
CAD Bodies and 
Flow Analysis Bodies in the Show group. Clear any variable display by selecting No Selection in the Legend drop-down. Click 
XYPlot Panel to view the XY Plot.
CAD Bodies and Flow Analysis Bodies in the Show group. Clear any variable display by selecting No Selection in the Legend drop-down. Click XYPlot Panel to view the XY Plot. | 1. To show/hide selected geometric entities, click  Show in View Panel.2. To change the color scheme, click on  More in the Legend and select between Blue Red and Blue Purple. |
Viewing the Temperature Contours on a Boundary
 | Temperature  K  |
1. Under Domains, select CONCENTRIC_ANNULUS. In the View panel, click Show to display the selected domains.
Show to display the selected domains.2. In the Properties panel, View tab, for Surface, set values for the options as listed below:
◦ Grid—No
◦ Outline—No
◦ Variable—Temperature: [K] : Heat
◦ Min—327
◦ Max—373
Plotting the Temperature at the Monitoring Point
1. In the Flow Analysis Tree, under Results, click Monitoring Points..
2. Select Point01, Point08, Point10.
3. Click 
XYPlot. A new entity xyplot1 appears in the Flow Analysis Tree under >
XYPlot. A new entity xyplot1 appears in the Flow Analysis Tree under > 4. Click xyplot1.
5. In the Properties panel, View tab, for Surface, set Variable to Temperature: [K]: Heat.
Viewing the Streamlines in the Domain
 | Velocity Magnitude m/s  |
1. In the Post-processing group, click 
Stream Lines. Under 
Results > Streamlines, Streamline 01 is selected.
Stream Lines. Under Results > Streamlines, Streamline 01 is selected.2. In the Properties panel, Model tab, select the following values for the options listed:
◦ Line Thickness—0.0002 m
◦ Animation Time Size—0.05
3. In the Properties panel, View tab, under Surface, select the following values for the options listed:
◦ Variable—Velocity Magnitude: [m/s] : Flow
◦ Min—0.0
◦ Max—0.74
4. In the Flow Analysis Tree, under General Boundaries select inner_surface, bottom_surface, and top_surface.
5. In the Properties Panel, Model tab, for Streamline, set Release Particle to Yes and Number of Particles to 100.
Validation
The temperature prediction along the radial direction on both the upper and lower symmetry walls are compared with experimental data from Kuehn & Goldstein.
