摘要
以潜艇流水孔为研究对象,基于RNGk-ε湍流模型对流水孔三维流场进行数值模拟,通过改变流水孔参数,研究了流水孔形状、尺寸以及数量对航行阻力的影响,研究结果表明,4种形状流水孔阻力值以菱形流水孔最小,其次为正方形流水孔,圆形流水孔,长方形流水孔阻力最大;随着流水孔尺寸的增大,湍流活动被加强,总阻力增大;多数量流水孔的湍流特性呈现出"两头强,中间弱"的态势,总阻力随流水孔数量增加而逐渐增大;以上结论可为潜艇流水孔设计提供参考。
Based on the water hole of Submarine,the RNGk-ε turbulence model was used to numerically simulate the three-dimensional water flow field of water hole.By changing the parameters of water holes,the influence of model＇s shape,size and number to its resistance of navigation was explored.Results had shown that in these four kinds of water hole the shape of diamond owned the least resistance,followed by square,round and rectangular.As the water hole size increased,the turbulence activity was enhanced,the total resistance increased.Turbulent characteristics of large number water holes showed a trend of ＂two poles strong,weak center＂,the total resistance increased with the number of water holes,which could provide reference for design of water hole.
出处
《计算机测量与控制》
CSCD
北大核心
2011年第5期1098-1101,共4页
Computer Measurement &Control
基金
国防科技预研基金(9140A14020507HK03)
关键词
流水孔
湍流模型
数值模拟
阻力
water hole
turbulence model
numerical simulation
resistance
