风浪谱模型在滇池码头工程中的应用

针对滇池的波浪特性,选用基于波能平衡方程与波作用守恒方程的风浪谱模型建立滇池波浪数学模型。数学模型计算结果与经验公式结果相比较,两者吻合较好,验证了计算模型的可靠性,并进一步计算了设计风场下滇池拟建码头工程区域工程前后的风浪场情况,为滇池古渡码头工程设计方案的优选提供依据。研究结果表明:工程受偏N方向风浪影响较大,而受常浪向WSW影响较小;浮桥为"L"型双梳式栈桥平面布置形式的风浪挡浪效果较好,优于"T"字型双梳式栈桥平布置形式。

Application of spectral wave model on pier project of Dianchi lake

According to the wave characteristics of Dianchi lake,we build a wave propagation numerical model on the basis of the wave energy balance and wave action conservation equations.The model validation shows that the numerical results coordinates well with the ones by the empirical formula,and the numerical model is used to calculate the wind wave fields in the project area under the designed wind field before and after construction of the pier,which provides basic parameters for the schemes selection.The calculated results show that the north(N)wind wave has a great influence on the project while the WSW wind wave has less influence,and the L-shaped floating bridge has a better effect of blocking wave than the T-shaped one.