温度分层海水中潜艇尾流数值模拟
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- 英文论文题名：Simulation of the submarine's wake in temperature gradient sea water
- 论文作者：陈雄 ; 杨智惠 ; 韩玉阁 ; 任登凤
- 英文论文作者：CHEN Xiong ; YANG Zhi-hui ; HAN Yu-ge ; REN Deng-feng ; School of Energy and Power Engineering ; Nanjing University of Science and Technology
- 年：2016
- 作者机构：南京理工大学能源与动力工程学院;
- 论文关键词：潜艇 ; 温度梯度 ; 水面兴波 ; 温度场
- 英文论文关键词：submarine ; Temperature gradient ; sea surface wave ; temperature field
- 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：4
- 文件大小：919k
- 原文格式：D
- 会议级别：全国
摘要
潜艇在海面形成的尾迹是红外探潜技术的基础。采用FLUENT中的VOF模型,主要对存在正温度梯度海水中无螺旋桨、有螺旋桨转动和排放冷却水三种情况的潜艇尾流进行数值模拟。获得了潜艇在不同情况下的水面兴波,并分析了海面和其他截面的温度场及流场分布。结果表明:在本文计算条件下,水面兴波主要受艇身影响,螺旋桨转动对温度分层海水的扰动随远离螺旋桨而增大,潜艇冷却水排放对海面温度场影响可以忽略,潜艇带螺旋桨转动时的海面冷特征较无螺旋桨时更明显。
The submarine wake in sea surface is the basic of IR detection of submarines. In this paper, the submarine wake of no propeller, rotating propeller and exhausting hot water in the positive temperature gradient sea water are simulated by VOF model in FLUENT. The sea surface wave caused by submarine is obtained in this paper and the temperature field and flow field are analyzed in sea surface and the other faces. The result shows that the surface wave is mainly affected by the submarine body,and the perturbation in temperature gradient sea water caused by rotating propeller will become more and more obvious with the increasing distance to the propeller. For the temperature field in sea surface,the influence of hot water exhausting can be ignored. In the situation of a submarine with a rotating propeller,the cold characteristic in sea surface is more obvious than the situation without propeller.
The submarine wake in sea surface is the basic of IR detection of submarines. In this paper, the submarine wake of no propeller, rotating propeller and exhausting hot water in the positive temperature gradient sea water are simulated by VOF model in FLUENT. The sea surface wave caused by submarine is obtained in this paper and the temperature field and flow field are analyzed in sea surface and the other faces. The result shows that the surface wave is mainly affected by the submarine body,and the perturbation in temperature gradient sea water caused by rotating propeller will become more and more obvious with the increasing distance to the propeller. For the temperature field in sea surface,the influence of hot water exhausting can be ignored. In the situation of a submarine with a rotating propeller,the cold characteristic in sea surface is more obvious than the situation without propeller.
引文
[1]洪方文.均匀流中潜艇水下运动表面尾迹的数值模拟[J].船舶力学.2005,9(4):9-17.HONG Fangwen.Numerical simulation of surface wake for submarine moving in homogeneous fluid[J].Ship Mechanics,2005,9(4):9-17.
[2]CHANG Yu,ZHAO Feng,et al Numerical Simulation of Internal Waves Excited by a Submarine Moving in the Two-layer Stratified Fluid[J].Conference of Global Chinese Scholars on Hydrodynamics.
[3]CHEN Shengtao,ZHONG Jingjun and SUN Peng,Numerical Simulation and Experimental Study of the Submarine’s Cold Wake Temperature Character[J].Journal of Thermal Science,2014,23(3):253-258.
[4]戴天奇.基于动网格技术的潜艇热尾流浮升规律研究[J].舰船科学技术,2015,37(5):86-89.DAI Tianqi,YAO Shiwei,WEI Zhiguo.Numerical simulation of thermal wake buoyant law based on dynamic meshing technique[J].Ship Science and Technology,2015,37(5):86-89.
[5]吴猛猛,龚文超.水下航行体热尾流水面温度特征的研究[J].红外,2011,32(9):29-34.WU Mengmeng,GONG Wenchao,YUAN Baoji.Study of Surface Temperature Features of Thermal Wake Caused by Underwater Vehicle.Infrared,2011,32(9):29-34.
[2]CHANG Yu,ZHAO Feng,et al Numerical Simulation of Internal Waves Excited by a Submarine Moving in the Two-layer Stratified Fluid[J].Conference of Global Chinese Scholars on Hydrodynamics.
[3]CHEN Shengtao,ZHONG Jingjun and SUN Peng,Numerical Simulation and Experimental Study of the Submarine’s Cold Wake Temperature Character[J].Journal of Thermal Science,2014,23(3):253-258.
[4]戴天奇.基于动网格技术的潜艇热尾流浮升规律研究[J].舰船科学技术,2015,37(5):86-89.DAI Tianqi,YAO Shiwei,WEI Zhiguo.Numerical simulation of thermal wake buoyant law based on dynamic meshing technique[J].Ship Science and Technology,2015,37(5):86-89.
[5]吴猛猛,龚文超.水下航行体热尾流水面温度特征的研究[J].红外,2011,32(9):29-34.WU Mengmeng,GONG Wenchao,YUAN Baoji.Study of Surface Temperature Features of Thermal Wake Caused by Underwater Vehicle.Infrared,2011,32(9):29-34.