摘要
采用Realizedk-ε湍流模型求解Reynolds平均Navier-Stokes方程,对SUBOFF全附体模型在低雷诺数和高雷诺数条件下的三维粘性流场分别进行了数值模拟,研究了桨-舵间距以及雷诺数对螺旋桨盘面伴流场的影响。计算结果表明:适当的加大桨-舵间距对提高潜艇尾流场的均匀性有显著的效果;桨-舵间距对潜艇桨盘面伴流场均匀性的影响在潜艇的低雷诺数状态和高雷诺数状态具有同样的规律。
The evaluation of 3D viscous wake field of a submarine model SUBOFF with full appendages at a low Reynolds number of 1.2×10 7 and a high Reynolds number of 2.6×10 8 was conducted by solving RANS equations with Realized k-ε turbulences models.The influence of Reynolds number and different distance between propeller and rudder on the uniformity of nominal wake of submarine were studied.The numerical result shows that the uniformity of nominal wake of submarine is prominently improved when the distance between propeller and rudder is moderately increased.The influence of distance between propeller and rudder on the uniformity of nominal wake of submarine gets similar for low or high Reynolds number fields.
出处
《应用力学学报》
CAS
CSCD
北大核心
2009年第2期343-347,共5页
Chinese Journal of Applied Mechanics
关键词
潜艇尾流场
雷诺数
桨-舵间距
数值计算
wake field of submarine,Reynolds number,distance between propeller and rudder,numerical calculation.
