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We will view the heat flux as vectors. This will tell us the direction of heat flow within the geometry as well as at the boundaries  In order to plot the heat flux vectors, select Solution > Total Heat Flux from the tree on the left. Then (Click) Vectors, near the top of the GUI. The sliders in the top bar can be used to change the size and number of vectors displayed.

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At this point, the heat flux vectors should appear similar to the image below. Take a minute to think about whether the heat flow directions at the boundaries match what you expect.

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https://confluence.cornell.edu/download/attachments/146918520/DirHeatFluxVec_Full.png

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