Analytical solution of boundary integral equations for 2-D steady linear wave problems |
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Authors: | Email author" target="_blank">J?M?ChuangEmail author |
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Institution: | Naval Architecture and Marine Engineering Program, Dalhouse University P. O. Box 1000, Halifax, Nava Scotia, B3J2X4, Canada |
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Abstract: | Based on the Fourier transform, the analytical solution of boundary integral equations formulated for the complex velocity of a 2-D steady linear surface flow is derived. It has been found that before the radiation condition is imposed, free waves appear both far upstream and downstream. In order to cancel the free waves in far upstream regions, the eigensolution of a specific eigenvalue, which satisfies the homogeneous boundary integral equation, is found and superposed to the analytical solution. An example, a submerged vortex, is used to demonstrate the derived analytical solution. Furthermore, an analytical approach to imposing the radiation condition in the numerical solution of boundary integral equations for 2-D steady linear wave problems is proposed. |
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Keywords: | boundary integral equation Cauchy's formula Rankine source method Fourier transform radiation condition |
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