Derivative of Normal on a Surface
Hello. Any help would be greatly appreciated. I am trying to calculate the mean curvature on a boundary. To do this, I am trying to calculate the dot product of the surface gradient operator and the...
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I got an answer from COMSOL support. There is no direct way to implement derivative with respect to r or arc length s. You need to transform the derivative w.r.t x,y,z coordinates. E.g....
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