潜体水压场数值模拟
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- 英文论文题名：Numerical simulation of hydrodynamic pressure field of submerged body
- 论文作者：宋利伟 ; 贾连徽
- 英文论文作者：SONG Li-wei ; JIA Lian-hui ; Science and Technology on Underwater Test and Control Laboratory
- 年：2016
- 作者机构：水下测控技术重点实验室;
- 论文关键词：水压场 ; 计算流体力学 ; 数值模拟 ; 动网格模型
- 英文论文关键词：hydrodynamic pressure field ; computational fluid dynamics ; numerical simulation ; dynamic mesh model
- 会议召开时间：2016-10-25
- 会议录名称：2016年中国造船工程学会水中目标特性学组学术交流会论文集
- 语种：中文
- 分类号：U674.76
- 学会代码：SXJS
- 会议名称：2016年中国造船工程学会水中目标特性学组学术交流会
- 会议地点：中国辽宁大连
- 主办单位：中国船舶重工集团公司第七六0研究所水中测控技术重点实验室
- 学会名称：《声学技术》编辑部
- 页数：5
- 文件大小：3665k
- 原文格式：D
- 会议级别：全国
摘要
不考虑兴波的影响,通过计算流体力学方法对潜体运动产生流场进行数值模拟,研究潜体水压场的分布特征。流场数值模拟通过求解k-ε二方程模型雷诺平均Navier-Stokes方程实现,潜体的运动通过动网格模型铺层法实现。对简化的二维潜体水压场进行数值模拟,通过分析网格无关性确定最终使用的计算网格尺度。对裸艇体流场进行数值模拟,潜体表面压力系数分布计算值与实验值符合较好,得到潜体水压场纵向通过曲线的分布特征,以及不同水底距离时潜体水压场分布的变化特征。对全附体水压场进行数值模拟,通过比较发现附体对潜体水压场分布特征影响很小,可以忽略。
Based on computational fluid dynamics, the flow around submerged body was simulated to investigate the character of hydrodynamic pressure field, and the influence of waves was ignored. Reynolds-averaged Navier-Stokes equations with k-ε two-equation model and dynamic grid model of layering method are used in the numerical simulation of flow problem. Hydrodynamic pressure field of bare hull in two-dimensional was calculated and the influence of grid scale was analyzed on the base of independent of mesh. Hydrodynamic pressure field of bare hull was predicted and analyzed. The simulation result of surface pressure coefficient distribution was in accordance with the experimental data. The longitudinal passage signature of submerged body was obtained and the characters and difference of hydrodynamic pressure field were analyzed for several distances from bottom. Hydrodynamic pressure field of submerged body with full appendages was simulated. The comparison shows that the appendages on the submerged body have less influence to the hydrodynamic pressure field and can be ignored.
Based on computational fluid dynamics, the flow around submerged body was simulated to investigate the character of hydrodynamic pressure field, and the influence of waves was ignored. Reynolds-averaged Navier-Stokes equations with k-ε two-equation model and dynamic grid model of layering method are used in the numerical simulation of flow problem. Hydrodynamic pressure field of bare hull in two-dimensional was calculated and the influence of grid scale was analyzed on the base of independent of mesh. Hydrodynamic pressure field of bare hull was predicted and analyzed. The simulation result of surface pressure coefficient distribution was in accordance with the experimental data. The longitudinal passage signature of submerged body was obtained and the characters and difference of hydrodynamic pressure field were analyzed for several distances from bottom. Hydrodynamic pressure field of submerged body with full appendages was simulated. The comparison shows that the appendages on the submerged body have less influence to the hydrodynamic pressure field and can be ignored.
引文
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[2]张志宏,顾建农,郑学龄,等.水下航行体引起海底压力变化的计算方法[J].武汉理工大学学报,2004,28(2):155-158.ZHANG Z H,GU J N,ZHENG X L,et al.Calculation method of pressure variation on sea bottom caused by underwater vehicle[J].Journal of Wuhan University of Technology,2004,28(2):155-158.
[3]张新国,刘忠乐.近底拖曳拖体的水压场计算方法研究[J].水雷战与舰船防护,2011,19(4):16-20.ZHANG X G,LIU Z L.A calculating method of hydrodynamic pressure field for underwater vehicle[J].Mine warfare&ship self-defense,2011,19(4):16-20.
[4]黎昆,张志宏,顾建农,等.利用面元法计算潜艇在水底引起的压力分布[J].舰船科学技术,2014,36(2):29-32.LI K,ZHANG Z H,GU J N,et al.Calculating pressure distribution on water bottom caused by a moving submarine by the panel method[J].Ship Science and Technology,2016,36(2):67-73.
[5]金永刚,张志宏,顾建农,等.大深度水下航行体引起的水底压力变化[J].武汉理工大学学报,2013,37(5):1098-1101.JIN Y G,ZHANG Z H,GU J N,et al.Pressure variation on sea bottom caused by vehicle deep in sea[J].Journal of Wuhan University of Technology,2013,37(5):1098-1101.
[6]马振富,孙云鹏,黄鹏飞,等.潜艇水压场及其判别方法的数值模拟研究[J].舰船电子工程,2016,36(2):67-73.MA Z F,SUN Y P,HUANG P F,et al.Numerical simulation of hydrodynamic pressure field of the submarine and discriminant method[J].Ship Electronic Engineering,2016,36(2):67-73.