A New Form of Boussineq Equation with Improved Linear Dispersion Characteristics
A New Form of Boussinesq Equation with Improved Linear Dispersion Characteristics作者机构：Dalian Naval Acad Dept Navigat Dalian 116018 Peoples R China Dalian Univ Technol Natl Key Lab Coastal & Offshore Engn Dalian 116023 Peoples R China
出 版 物：《China Ocean Engineering》 (中国海洋工程（英文版）)
年 卷 期：1999年第14卷第1期
页 面：11-20页
核心收录：
主 题：Boussinesq equation Airy wave Pade approximation numerical simulation irregular wave
摘 要：It has been shown that Boussinesq type equations, which include the lowest order effects of nonlinearity and frequency dispersion, can provide an accurate description of wave evolution in coastal regions. But different linear dispersion characteristics of the equation can be obtained by different integrating method. In this paper, a new form of the Boussinesq equation is derived by use of two different layer horizontal velocity variables instead of the commonly used depth-averaged velocity or an arbitrary layer velocity. This significantly improves the linear dispersion properties of the Boussinesq equation and enables it to be applied to a wider range of water depth.
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