Hello there I am a beginner of deal.ii and some problem happened. I want to solve the Maxwell equations in the 2D cylindrical coordinates with axis-symmetry. When I create a weak form of the equation (see attached formula), I want to remove 1 / r from the first term. When I refer to other posts, they are asked to multiply 2 pi r by both sides. But I do not understand this. Why do you multiply by 2 pi? Multiplying both sides yields r in the other terms.
And when trying to replace the attached formula with code, the first term differentiates only for r. In step-4, however, we use x_q as the gradient for x and z. I'm really looking forward of your replies!! Thanks for reading this passage. -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
