I am setting up a numerical simulation from a 2D discretization of the heat equation in cylindrical coordinates.(adsbygoogle = window.adsbygoogle || []).push({});

my spatial variables are radius (r), height (z), and azimuth (ø).

The assumption is that there is no gradient along the azimuth direction (if temperature is T then dT/dø = 0)

My problem is that I do not know how to handle the thickness Δø of my element. If I were to instead have a problem with dT/dz = 0 I know that I would use Δz = 1, but for this problem do I do the same and use Δø=1 or should it be a thickness based on r?

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# Discretization in cylindrical coordinates, unit thickness for azimuth?

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