水下航行体在非规则波中出水运动数值仿真研究

Research on the Gesture of Underwater Vehicle Exiting from Irregular Wave by Numerical Simulation Method

海面波浪是影响水下航行体出水姿态变化的一个重要因素。目前对此问题的研究多局限于规则波浪,但是真实的海浪环境一般很少是规则波,而是以非规则波浪为主的。为更好地对此问题进行研究,首先以ITTC海浪谱为目标谱,运用CFD数值方法构建长峰非规则波数值波浪水池,并采用谱分析方法对波浪数值水池精度进行了计算,效果良好;在此基础上对水下航行体在非规则波浪条件下的出水运动进行了数值计算,得出了长峰非规则波对航行体出水姿态的影响,为水下航行体出水姿态的预报提供了理论参考。

The important factors for the gesture of underwater vehicle is the ocean wave. At the present time,the research forthis problem is always about the regular wave. But,the ocean waves are the irregular waves not the regular waves. For better re-search on this issue,according to ITTC wave spectrum uses the CFD method to generate the long-crested irregular wave tanks. Pre-cision can satisfy the requirement of numerical calculation. On this basis,use of dynamic mesh technique is made to simulate thegesture of underwater vehicle exiting from long-crested irregular waves,the influence is gotten from irregular waves. The researchconclusion can make reference to the parameter design for the trajectory of underwater vehicle.