Abstract
The purpose of this study is the derivation of a closed-form formula for Green’s function in elliptic coordinates that could be used for achieving an analytic solution for the second-order diffraction problem by elliptical cylinders subjected to monochromatic incident waves. In fact, Green’s function represents the solution of the so-called locked wave component of the second-order velocity potential. The mathematical analysis starts with a proper analytic formulation of the second-order diffraction potential that results in the inhomogeneous Helmholtz equation. The associated boundary-value problem is treated by applying Green’s theorem to obtain a closed-form solution for Green’s function. Green’s function is initially expressed in polar coordinates while its final elliptic form is produced through the proper employment of addition theorems.
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Chatjigeorgiou, I.K., Mavrakos, S.A. The analytic form of Green’s function in elliptic coordinates. J Eng Math 72, 87–105 (2012). https://doi.org/10.1007/s10665-011-9464-6
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DOI: https://doi.org/10.1007/s10665-011-9464-6