不同航行条件下超空泡航行器出水过程数值计算  

Numerical Calculation of Water Exit Process of Supercavitating Vehicles under Different Sailing Conditions

作　　者：褚悦 刘平安 黄曦 高崧 嵇振涛 周小虎 CHU Yue;LIU Pingan;HUANG Xi;GAO Song;JI Zhentao;ZHOU Xiaohu(College of Aerospace and Civil Engineering,Harbin Engineeing University,Harbin 150001,China;Xi’an Aerospace Propulsion Institute,China Aerospace Science and Technology Corporation Sixth Research Institute,Xi’an 710100,China;Hua’an Industry Group Co.,LTD.,China North Industries Group Corporation Limited,Qiqihaer 161046,China;Jincheng Nanjing Engineering Institute of Arcraft System,Aviation Industry Corporation of China,Nanjing 211100,China)

机构地区：[1]哈尔滨工程大学航天与建筑工程学院,黑龙江哈尔滨150001 [2]中国航天科技集团公司第六研究院西安航天动力研究所,陕西西安710100 [3]中国兵器工业集团公司北方华安工业集团有限公司,黑龙江齐齐哈尔161046 [4]中国航空工业集团金城南京机电液压工程研究中心,江苏南京211100

出　　处：《水下无人系统学报》2024年第3期496-506,共11页Journal of Unmanned Undersea Systems

摘　　要：航行器出水过程极其复杂,伴随着多相流、空化、相变及湍流不稳定性,其所受作用力呈现强的非定常、非线性。国内外对航行器带空泡出水问题的研究,多为航行器垂直或者倾斜出水,关注点往往为航行器运动轨迹及姿态,对超空泡航行器出水过程研究较少。文中基于STAR-CCM+软件,采用重叠网格技术进行网格划分,使用流体体积(VOF)多相流模型捕捉气液交界面,Schnerr-Sauer模型描述航行器周围的空化过程,建立了航行器出水过程的数值计算模型。对航行器在不同航行条件(初始速度、初始水深、通气量)下的出水过程进行仿真计算,得到了不同工况下的流场和空泡演化规律,分析了超空泡航行器的流体动力特性与运动特性。仿真结果表明,不同初始运动速度的航行器,其水下运动呈现出2种不同的模式。不同水深下,初始空化数不同,在较深的水域航行器周围空泡更容易破裂,加大通气量可有效改善空泡形态。The water exit process of vehicles is very complicated,accompanied by multiphase flow,cavitation,phase transition,and turbulence instability,and the applied force is highly unsteady and nonlinear.At present,studies on the water exit problem of the vehicle with cavitation focus on the vertical or oblique water exit,emphasizing the trajectory and attitude of the vehicle.There are few studies on the water exit process of the supercavitating vehicle.In this paper,based on STAR-CCM+software,overlapping grid technology was used for meshing,and the volume of fluid(VOF)model was used to capture the gas-liquid interface.The Schnerr-Sauer model described the cavitation process around the vehicle,and a numerical calculation model of the water exit process of the vehicle was established.The water exit process of the vehicle under different sailing conditions(initial velocity,initial water depth,and ventilation)was simulated and calculated,and the flow field and cavity evolution laws under different conditions were obtained.The hydrodynamic and kinematic characteristics of the supercavitating vehicle were analyzed.The simulation results show that the underwater motion of the vehicle with different initial velocities presents two different modes.Under different water depths,the initial cavity number is different.Cavity around the vehicle is more likely to rupture in deeper waters.The cavity morphology can be improved effectively by increasing the ventilation.

关 键 词：超空泡航行器 出水 重叠网格 

分 类 号：TJ630.1[兵器科学与技术—武器系统与运用工程] U661.1[交通运输工程—船舶及航道工程]