由于水下航行体发射管内的流场非常复杂又不宜于测量,因而很难得到航行体发射过程中的流场分布情况。文中的主要目的是数值模拟水下航行体在发射管内的运动规律和压力分布。通过工程计算的方法得到了水下航行体在发射管内的运动曲线,在此基础上利用Ansys软件的Flotran模块动网格技术对发射管内流场进行了实时仿真,得到了航行体表面的压力分布。

Due to complexity of the flow field in launch tube and inconvenience for measurement, it is hardly possible to get the total measurements of the flow field in the launch tube. The main purpose of this paper is to study the movement regulation and pressure distribution of the underwater vehicle in the launch tube by means of numerical simulation. The movement regulation was calculated by engineering method. Based on the results, the flow field in the tube was real-time simulated by using Flotran module and the dynamic mesh technology, the pressure distribution of the underwater vehicle was gotten.