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双突堤是常见的一种防波堤布置型式。因此研究双突堤的波浪绕射数学模型和数值计算方法是有理论意义和实用价值的。 本文引用数学物理方程中的单源点法,提出了两种双突堤波浪绕射的数学模型。 本模型采用线性简谐波理论,假设水深为定值。当双突堤布置呈直线型时,港内水域中任意点P的波势ψ为绕射系数值K_d为 K_d(P)=(ψ_1~2(P)+ψ_2~2(P))~(1/2)。 推荐的两种模型可供港口规划、设计工作采用。
Double jetty is a common type of breakwater layout. Therefore, it is of theoretical significance and practical value to study the mathematical model and numerical calculation of wave diffraction of double jetties. In this paper, we refer to the single-source point method in mathematical physics equations, and propose two kinds of mathematical models of the diffraction of double jetties. This model uses a linear harmonic theory, assuming a constant water depth. When the double jetty arrangement is linear, the wave potential ψ at an arbitrary point P in the harbor waters is that the diffraction coefficient K_d is K_d (P) = (ψ_1 ~ 2 (P) + ψ_2 ~ 2 (P)) ~ (1 / 2). The two recommended models are available for port planning and design work.