基于台风条件下海浪水压场建模仿真  

Modeling and simulation of wave pressure field under typhoon conditions

作　　者：向亚丽 颜冰[1] 马剑飞 XIANG Ya-li;YAN Bing;MA Jian-fei(College of Weaponry Engineering,Naval Univ.of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学兵器工程学院

出　　处：《海军工程大学学报》2019年第6期77-82,共6页Journal of Naval University of Engineering

基　　金：国家部委基金资助项目(3020603020503)

摘　　要：为了研究特定海况等级和台风风级条件下的海洋环境水压场特征,并建立准确的物理场信号模型,首先验证了SWAN(simulating waves nearshore)模式推算台风浪的有效性,通过SWAN模式获取台风条件下某海域的海浪谱,并根据海浪谱密度求其海浪振幅谱;然后,由海浪振幅谱得到了海底压力振幅谱及压力功率密度谱、海底固定点水压场压力-时间历程。仿真结果表明:该模型可以将研究海况等级数由4级推广至8级,且在8级海况条件下的海浪水压场值最大可达12 kPa,有助于高海况条件下对水中装备进行性能测试。In order to study the characteristics of the water pressure field in marine environment under specific sea conditions and stormy typhoon conditions and to establish an accurate physical field signal model, the SWAN model is verified for the effectiveness of the typhoon and used to obtain the wave spectrum of a certain maritime area under typhoon conditions. The wave amplitude spectrum is obtained according to the wave spectral density, and then the seafloor pressure amplitude spectrum and the pressure power density spectrum and the seabed fixed point water pressure field pressure-time history are obtained from the wave amplitude spectrum. The simulation results show that the model can extend the study of sea conditions from 4 to 8 grades, and that the maximum value of wave hydrostatic field value can reach 12 kPa under 8-grade sea conditions, which is conductive to the performance test of water equipment under high sea conditions.

关 键 词：风浪谱 海浪水压场 SWAN模式 水压场压力-时间历程 

分 类 号：D610.1010[政治法律—政治学]