流速对系泊球形潜体动力特性及尾涡结构的影响研究

Study on the Influence of Flow Velocity on Dynamic Characteristics and Tail Vortex Structure of Moored Spherical Submersible

本文针对有系泊缆球形潜体在不同流速下的运动响应和流场特性问题,采用模型试验及计算流体力学(Computational fluid dynamics,CFD)方法进行研究。使用双向流固耦合方法对有系泊的球形潜体模型的运动特性进行了数值模拟的研究,通过模型试验结果与数值实验结果的比对,验证了本文使用的数值方法的可靠性。同时,利用软件补充了试验中未观测到的尾涡结构,分析不同流速下球形潜体的尾涡状态。

In this paper,the motion response and flow field characteristics of spherical submersibles with mooring lines under different flow rates are studied by model test and computational fluid dynamics(CFD)methods.The motion characteristics of the moored spherical submersible model were numerically simulated by the bidirectional fluid-structure interaction method.By comparing the model test results with the numerical experiment results,the reliability of the numerical method used in this paper is verified.At the same time,the software was used to supplement the tail vortex structure that was not observed in the test,and the tail vortex state of the spherical submersible under different flow rates was analyzed.