Comments (2)
Hi @peiyang988
2D cylindrical coordinate (r, z); its difference with the 2D Cartesian is explained here: see, e.g., the difference between the divergence terms, although the gradient terms are identical.
2D radial (r, θ).
Unfortunately, I have not implemented the discretization terms in the 3D spherical coordinate yet, mostly because I never needed it in my work. It can be done relatively easily by modifying the code for the 3D cylindrical terms.
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Thanks for your prompt reply. I've got it.
2-D Cylindrical coordinate system is a stretch of the 1-D radial coordinate system in the z direction.
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