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Here, the skin friction coefficient will be plotted as a function of distance along the plate. First, click on Plots, then double click on XY Plot, as shown below. In the Solution XY Plot menu deselect Write to File, select Position on X Axis, set X to 1 and set Y to 0. Then, set the box located underneath Y Axis Function to Wall Fluxes and set the box below to Skin Friction Coefficient. Next, select plate under Surfaces and deselect any other geometry features. At this point your Solution XY Plot menu should look the same as the following image.

https://confluence.cornell.edu/download/attachments/118771111/SolXY3_Full.png

Change Pressure to Wall Fluxes. Then, change Wall Shear Stress to Skin Friction Coefficient. Under Surfaces, select plate.
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Click Plot.
 
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Then, click Plot in the Solution XY Plot menu and you should obtain the following output.

Now, compare your solution to the with the Blasius solution's skin friction by loading the file and then plotting it with your solution. (Download file here)

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