Integral-Equation Solutions for Time-Dependent Free-Surface Problems
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概要
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Two methods are in common use for solving the numerical problem of a body oscillating in the presence of a free surface: (1) a multipole-expansion method and (2) an integral equation method. The latter generally breaks down at and near a set of discrete frequencies, namely, the eigenfrequencies of the complementary, hypothetical problem for the flow inside the body. Ohmatsu (1975) has shown how to avoid this difficulty by modifying the interior problem. In the present paper, an even simpler procedure is presented for accomplishing the same result. A minor change is made in the Green function, in such a way that the interior problem never has an eigenfrequency near the frequency under consideration. Any existing computer program based on the approach of Frank (1967) can be modified easily to incorporate the change of Green function. The modification is based on a procedure suggested by Ursell (1953).
- 社団法人日本船舶海洋工学会の論文
著者
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Shin Young
Department Of Microbiology College Of Medicine Kangwon University
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Ogilvie T.
Department Of Naval Architecture And Marine Engineering The University Of Michigan
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Ogilvie T.
Department Of Naval Architecture Amd Marine Engineering The University Of Michigan
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Shin Young
Department Of Electrical And Electronic Engineering Kyung Won University
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