基于粒子系统的舰船尾流建模与仿真

在尾流自导鱼雷弹道设计与作战使用研究中,需要建立逼真的水面舰船尾流模型,用以进行鱼雷进出尾流的判断。舰船尾流是1种具有较好统计特征的随机物理场,与舰船速度、航向、位置等机动轨迹与海况存在内在的关联。而粒子系统正是解决这种随机物理场的最有效方法。根据舰船尾流的外在特征,采用粒子系统研究建立了舰船尾流模型,实现了舰船各种机动条件下尾流的模拟和鱼雷尾流探测的仿真,为尾流自导鱼雷的弹道研究提供了很好的技术支撑。

Ship Backwash Simulation Based on Particle System

It is necessary to model the backwash of surface ship in ballistic design and operation research of backwash homing torpedo,for the use of judging whether the torpedo is in backwash.The backwash is a physical random field with perfect statistical characteristics.There are certain relationships between the backwash and ship velocity,course,location and sea state.Particle system is the most effective solution to express the stochastic field.According to the external characteristics,the backwash model is established based on particle system,and the simulation of backwash homing torpedo detecting in various condition of ship maneuver is implemented.The research provides technical support for the torpedo ballistic research.