层化液体中潜体波浪力计算方法及仿真研究

Calculation Methods and Simulation Research of Wave Diffraction Force of Submerged Bodies in Layered Liquid

应用边界元方法对层化液体中规则波的波浪力进行了理论推导,在此基础上采用在流体力学领域应用广泛的Fortran语言编程计算并对一典型界面规则波中的潜体的受力(力矩)进行了仿真计算与分析,得出结论:由于海洋中的内波基本上都属于低频长波,而本计算对低频内波有较合理的计算结果,因此对于计算海洋内波对水下潜体的影响,该计算方法比较可靠。同时与船舶科学研究中心702所耐波性水池实验结果进行了数据比对,通过实测数据与仿真数据的对比也验证了文中的理论推导和计算方法的可靠性。

This article deduces the wave force of regular waves in layered liquid by applying the boundary element method. Based on this method ,the article applies Fortran language which is applied widely in the domain of liquid mechanics for calculation. It carries out simulation analyses of force（moment） on submerged bodies in typical interfacial regular waves and draws a conclusion： Internal wave in oceans belongs to low frequency long wave and this calculation method has a logical result to low frequency long wave, so this calculation method is dependable for calculating the influence of Internel wave on submerged bodies. At the same time this article makes data comparisons with the experimental results of anti - wave cistern in Shipping Science Center - 702 and validates the reliabilities of the methods.