vk.com/club152685050Modeling Radiation and|Naturalvk.com/id446425943Convection

Figure 8.9: Temperature Profile Along the Outer Surface of the Box

14. Save the case and data files (rad_b_100.cas.gz and rad_b_100.dat.gz).

File → Write → Case & Data...

8.4.10. Comparing the Contour Plots after Varying Radiating Surfaces

1.Increase the number of faces per cluster to 800.

Setup → Models → Radiation Edit...

a.Click the Settings... button to open the View Factors and Clustering dialog box.

i.Enter 800 for Faces per Surface Cluster for Flow Boundary Zones in the Manual group box.

ii.Click Apply to All Walls.

iii.Click OK to close the View Factors and Clustering dialog box.

b.Click the Compute/Write/Read... button to open the Select File dialog box and to compute the view factors.

Specify a name for the S2S file that will store the cluster and view factor parameters.

i.Enter rad_800.s2s.gz for S2S File.

ii.Click OK in the Select File dialog box.

c.Click OK to close the Radiation Model dialog box.

2.Right-click Solution Initialization and select Initialize.

Solution → Solution Initialization Initialize

	Release 2019 R1 - © ANSYS,Inc.All rights reserved.- Contains proprietary and confidential information
310	of ANSYS, Inc. and its subsidiaries and affiliates.

vk.com/club152685050 | vk.com/id446425943

Setup and Solution

3.Start the calculation by requesting 400 iterations.

Solution → Run Calculation Calculate

4.Save the case and data files (rad_800.cas.gz and rad_800.dat.gz).

File → Write → Case & Data...

5.In a similar manner described in the step 13 of Postprocessing (p. 298), display the temperature profile for the side wall and write it to a file named tp_800.xy.

6.Repeat the procedure, outlined in steps 1 – 5 of this section, for 1600 faces per surface cluster and save the respective S2S files (for example, rad_1600.s2s.gz), case and data files (for example, rad_1600.cas.gz), and temperature profile files (for example, tp_1600.xy).

7.Display contours of wall temperature for all six cases using the wall-temperature definition you created earlier.

Results → Graphics → Contours → wall-temperature

Display

Figure 8.10: Contours of Wall Temperature: 100 Face per Surface Cluster

Release 2019 R1 - © ANSYS,Inc.All rights reserved.- Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.	311

vk.com/club152685050Modeling Radiation and|Naturalvk.com/id446425943Convection

Figure 8.11: Contours of Wall Temperature: 800 Faces per Surface Cluster

Figure 8.12: Contours of Wall Temperature: 1600 Faces per Surface Cluster

8.Create a plot that compares the temperature profile plots for 100, 800, and 1600 FPSC.

Results → Plots → File...

a.Click the Load... button to open the Select File dialog box.

i.Select the file tp_100.xy.

ii.Click OK to close the Select File dialog box.

b.Change the legend entry for the data series.

	Release 2019 R1 - © ANSYS,Inc.All rights reserved.- Contains proprietary and confidential information
312	of ANSYS, Inc. and its subsidiaries and affiliates.

vk.com/club152685050 | vk.com/id446425943

Setup and Solution

i.Select tp_100.xy in the Curves Information text box.

ii.Enter 100 in the text box to the right of the Change Legend Entry button.

iii.Click Change Legend Entry.

ANSYS Fluent will update the Legend Entry text for the file tp_100.xy.

c.Load the files tp_800.xy, and tp_1600.xy and change their legend entries accordingly, in a manner similar to the previous two steps (a and b).

d.Click the Axes... button to open the Axes dialog box.

Release 2019 R1 - © ANSYS,Inc.All rights reserved.- Contains proprietary and confidential information
of ANSYS, Inc. and its subsidiaries and affiliates.	313

vk.com/club152685050Modeling Radiation and|Naturalvk.com/id446425943Convection

i.Ensure X is selected from the Axis list.

ii.Enter 3 for Precision in the Number Format group box and click Apply.

iii.Select Y from the Axis list.

iv.Enter 2 for Precision and click Apply.

v. Close the Axes dialog box.

e.Click Plot (Figure 8.13: A Comparison of Temperature Profiles along the Outer Surface of the Box (p. 314)) and close the File XY Plot dialog box.

Figure 8.13: A Comparison of Temperature Profiles along the Outer Surface of the Box

	Release 2019 R1 - © ANSYS,Inc.All rights reserved.- Contains proprietary and confidential information
314	of ANSYS, Inc. and its subsidiaries and affiliates.