深海自持式剖面浮标水动力特性分析  

Hydrodynamic analysis of deep-sea self-sustaining profile buoy

作　　者：李鲁彦 李醒飞[1,3,4] 姜明波 杨少波 LI Lu-yan;LI Xing-fei;JIANG Ming-bo;YANG Shao-bo(State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China;People's Liberation Army of China 61540,Xian 710000,China;Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China;Qingdao Institute for Ocean Technology of Tianjin University,Qingdao 266237,China)

机构地区：[1]天津大学精密测试技术及仪器国家重点实验室,天津300072 [2]中国人民解放军61540部队,陕西西安710000 [3]青岛海洋科学与技术试点国家实验室,山东青岛266237 [4]天津大学青岛海洋技术研究院,山东青岛266237

出　　处：《海洋湖沼通报》2021年第4期46-54,共9页Transactions of Oceanology and Limnology

基　　金：青年教师科研启动基金项目(Pilq1702);青岛海洋科学与技术国家试点实验室专项(ZR2016WH01);天津市自然科学基金(重点项目)(16JCZDJC30100)。

摘　　要：利用CFD技术对浮标上浮下潜运动进行数值模拟实验分析,流场求解基于Navier-Stokes方程和RNG k-epsilon湍流模型,压力和速度的耦合采用SIMPLE方法解耦,流场的控制方程采用有限体积法离散且分离式求解。在此基础上揭示了浮标上浮下潜运动过程的流场特性;得到浮标水下运动过程阻力随速度变化的规律,并将仿真结果与浮标海试试验结果进行了对比分析,验证了该方法的可行性。为浮标控制和浮标外形结构的优化提供了理论依据。The analysis of the hydrodynamic characteristics becomes the premise of studying the underwater motion of the buoys.In this paper,the CFD technology is used to simulate the buoy’s upstream and downward motion.The flow field is solved based on Navier-Stokes equation and the RNG k-epsilon turbulence model.The pressure-velocity coupling is decoupled by the SIMPLE method,and the flow field control equation is discretized by finite volume method and solved separately.Thus,the flow field characteristics of the buoy in the process of floating and submerging are revealed,and the law of resistance changing with velocity is obtained.The simulation results are compared with the experimental results of the buoy at sea,which verifies the feasibility of the method.It provides a theoretical basis for buoy control and optimization of buoy configuration.

关 键 词：CFD 数值模拟 FLUENT 水动力特性 浮标 

分 类 号：O352[理学—流体力学]