水下拖曳体受力数值模拟分析  

Numerical simulation analysis of the force of an underwater towed body

作　　者：易学平 欧阳凌浩 YI Xueping;OUYANG Linghao(The 710 Research Insititue of CSSC,Yichang 443003,China)

机构地区：[1]中国船舶集团有限公司第七一〇研究所,湖北宜昌443003

出　　处：《舰船科学技术》2025年第1期83-88,共6页Ship Science and Technology

摘　　要：为了使声学设备能够在水下正常工作,设计一种提供稳定姿态、在指定航速下达到要求深度的水下拖曳体搭载平台,并对其水动力学进行数值模拟。基于计算流体力学(Computational Fluid Mechanics,CFD)对水下拖曳体的3种砰击载荷工况进行数值模拟计算及实验验证,其中拖体初始位置分别为拖曳点距离水线以上半波高、拖曳点位于水线、拖曳点距离水线以下半波高。结果表明,数值模拟计算可以较为准确地监测各个区域的受力情况,相同条件下的试验与数值模拟受力结果对比验证了数值模拟结果的有效性,可为水下拖曳体的设计提供理论支撑和依据。In order to enable acoustic equipment to function properly underwater,a waterborne towing body platform has been designed to provide stable attitude and achieve the required depth at a specified speed.Computational fluid mechanics(CFD)was employed to numerically simulate the hydrodynamics of the underwater towing body under three different slamming load conditions,with experimental validation.The initial positions of the towed body were set as:the towing point is above the waterline by half a wave height,the towing point is at the waterline,and the towing point is below the waterline by half a wave height.The results indicate that the numerical simulation can accurately monitor the force distribution in different regions.The comparison between the experimental and numerical simulation results under the same conditions validates the effectiveness of the numerical simulation.This study provides theoretical support and a basis for the design of underwater towing bodies.

关 键 词：水下拖体 声学设备 计算流体力学 数值模拟 

分 类 号：U664.5[交通运输工程—船舶及航道工程]