船桨干扰定常空化性能数值模拟(英文)  

Steady Interaction Numerical Simulation of Cavitating Turbulent Flow between Ship Hull and Propeller

作　　者：鞠磊[1,2] 苏玉民[1] 赵金鑫[1] 刘业宝[1] 崔桐[1] 

机构地区：[1]哈尔滨工程大学军用水下智能机器人技术国防科技重点实验室,哈尔滨150001 [2]上海振华重工(集团)股份有限公司,上海200125

出　　处：《船舶力学》2012年第6期593-602,共10页Journal of Ship Mechanics

基　　金：Supported by National Natural Science Foundation of China (50879014)

摘　　要：文章采用CFD技术计算了船桨干扰定常空化性能。首先计算了不同空化数下的NACA66(MOD)水翼和DTRC4381螺旋桨的定常空化性能,同时预报了KCS船的伴流场、阻力性能和船体表面压力分布。为了验证计算船后螺旋桨空化流的可行性,文中对KCS船和KP505螺旋桨进行了整体考虑,并计算了不同空化数下的船后螺旋桨的空化覆盖面积。计算表明,文中采用的计算方法合理,计算结果与试验结果吻合。Steady interaction of cavitating turbulent flow between ship hull and propeller was de- scribed based on Computational Fluid Dynamics techniques （CFD）. A NACA66 （MOD） airfoil sec- tion and DTRC4381 propeller with different cavitation number were chosen as a numerical model to predict steady cavitation.KCS ship was conducted to calculate the wake field, resistance and surface pressure coefficient.As an attempt in investigating the feasibility of computing cavitating turbulent flow around the rotating propeller behind the ship hull,KCS ship and KPS05 propeller were selected to study the cavitating interaction between ship and propeller as references to the consideration cavitation when computing the ship hull and propeller as a whole.The cavatation coverage areas with changing the cavitation number were predicted. The results show that the hydrodynamic performance prediction method is successful and reasonable and the computational results agree well with the existing experimental data.

关 键 词：CFD 空化 伴流场 干扰 水动力性能 

分 类 号：U661.336[交通运输工程—船舶及航道工程]