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The form of Boussinesq equation derived by Nwogu （1993） using velocity at an arbitrary distance and surface elevation as variables is used to simulate wave surface elevation changes. In the numerical experiment, water depth was divided into five layers with six layer interfaces to simulate velocity at each layer interface. Besides, a physical experiment was carried out to validate numerical model and study solitary wave propagation.“Water column collapsing”method （WCCM） was used to generate solitary wave. A series of wave gauges around an impervious breakwater were set-up in the flume to measure the solitary wave shoaling, run-up, and breaking processes. The results show that the measured data and simulated data are in good agreement. Moreover, simulated and measured surface elevations were analyzed by the wavelet transform method. It shows that different wave frequencies stratified in the wavelet amplitude spectrum. Finally, horizontal and vertical velocities of each layer interface were analyzed in the process of solitary wave propagation through submerged breakwater. 相似文献
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海底铰接柱结构是六十年代中期出现的一种新型海上工程结构.它可用于海上石油开发的生产塔柱、港口工程的导航灯标、海上系泊设施以及安装水下设备的构筑物等工程建设中. 相似文献
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垂直桩柱上总波浪力的试验研究 总被引：1，自引：0，他引：1
本文基于Morison公式和线性波理论,根据试验室里规则波和强制波作用下小直径圆形桩柱上总波浪力的试验资料分析,讨论了规则波3相似文献
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Efficient Numerical Solution of the Modified Mild-Slope Equation 总被引：12，自引：1，他引：11
An efficient numerical model for wave refraction,diffraction and reflection is presented in thispaper.In the model,the modified time-dependent mild-slope equation is transformed into an evolutionequation and an improved ADI method involving a relaxation factor is adopted to solve it.The methodhas the advantage of improving the numerical stability and convergence rate by properly determining therelaxation factor.The range of the relaxation factor making the differential scheme unconditionally stableis determined by stability analysis.Several verifications are performed to examine the accuracy of the pres-ent model.The numerical results coincide with the analytic solutions or experimental data very well,andthe computer time is reduced. 相似文献
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