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Click on Y Axis tab. Next to Variable, choose Temperature.

Click Apply. You will see Centerline Temperature created under Report in the Outline tab.

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Wall Temperature Plot

We will now investigate plot the temperature variation along the wall. To do this we need to First, create a new line on the simulation. It needs to be a horizontal line correponding line corresponding to the wall.

Insert > Location > Line

Please name this line Name it "Wall"  (with capital W; otherwise you'll get a conflict with a reserved name). On the lower left panel, you will see Details of Wall. Enter the following coordinates.

Point 1 (0,0.0294,0)

Point 2 (6.045,0.0294,0)

Again 50 for the sample size

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start and end locations of the line and the sampling frequency. Click Apply.

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Click Apply. You will see wall created under User Locations and Plots.

Next, we will repeat the previous process, but using this new line as source data. 
Insert > Chart

Name this chart "Wall Temperature". You will see Details of Wall Temperature appear on the lower left panel.

Select the Under General tab , please and name the chart "Wall Temperature".

Now click on Select Data Series tab to specify the location of the chart data. Change the name of the first data series from Series 1 to series to FLUENT. Under Data Source, specify Wall as Location.

As before, specify x-axis variable to be X (i.e. axial length along the pipe).

Specify y-axis variable to be Temperature. Click Apply. You should see the following plot.

Image AddedAgain in this case, the x-axis is the x-position along the pipe and the y-axis denotes temperature.

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