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We notice that the flow accelerates due to the heating. As air is heated, its density decreases. So the velocity has to increase to maintain the same mass flow rate.
Temperature Profiles
Now let's us Similarly, one can look at the temperature profile profiles before and after the heating heated section.
Insert > Chart
Enter "Temperature Profile" as Name. Details of Temperature Profile appears on the lower left panel, so please name the chart "Temperature Profile".
Now click on Data Series tab to specify the location of the chart data. Under Data Source, specify Preheat 3 as Location for the first data series. Change the name to x=1.8m. Similarly, add the locations: Preheat 3, Postheat 1, Postheat 2, and Outlet. Name them according to the figure shown below.
Now we will specify the X Axis parameter. Click on X Axis tab. Next to Variable, choose Temperature. Next we will specify the Y Axis parameter. Click on Y Axis tab. Next to Variable, choose Y. Click Apply. You will see Temperature Profile created under Report in the Outline tab.This is what you should see in the Graphics window.
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Duplicate the Axial Velocity Profiles chart by right-clicking on the plot name in the "tree" on the upper left. Rename it as "Temperature Profiles".
Double-click on "Temperature Profiles" in the tree view to edit its properties. This should be just below "Axial Velocity Profiles" in the list.
Change the title and x-axis variable (to Temperature). Click Apply. Here's what we get.
This plot shows that:
- the temperature increases in the heated section
- the temperature is much higher near the wall in the heated section
- the temperature is nearly uniform at the
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- end of the mixing section
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All these trends are as expected.
Go to Step 7: Verification & Validation
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