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论文类型：期刊论文
发表时间：2017-09-01
发表刊物：OCEAN ENGINEERING
收录刊物：SCIE、EI
卷号：141
页面范围：79-87
ISSN号：0029-8018
关键字：Long-wave equation; Analytical solution; Bottom topography generality; Wave amplification; Wave attenuation
摘要：In this paper, the problem of linear long-wave scattering by a submerged circular cylinder or a circular pit located in. a general idealized bottom topography is considered. Because of the generality of the bottom topography, the problem has various physical and engineering backgrounds. By skillfully using variable transforms, a close-formed analytical solution to the long-wave equation (LWE) in terms of Fourier-cosine series is developed, which finds several existing analytical solutions to be its degenerated cases. Based on the present solution, the influence of various factors, including the convexity or concavity of the bottom topography, the submergence of the circular cylinder or circular pit, and the wavelength of incident waves on wave amplification or attenuation is investigated.