对转螺旋桨敞水性能数值预报  

Numerical prediction of contra-rotating propellers′ open water performance

作　　者：王展智[1] 熊鹰[1] 齐万江[2] 

机构地区：[1]海军工程大学舰船舶工程系 [2]中国人民解放军71187部队

出　　处：《华中科技大学学报（自然科学版）》2012年第11期77-80,88,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51009145)

摘　　要：建立了对转螺旋桨敞水性能数值预报模型,采用雷诺平均纳维-斯托克斯(RANS)方法结合SSTk-ω湍流模型研究了美国泰勒水池的2组对转螺旋桨的敞水性能,通过滑移网格处理前后桨之间的相对运动,分析了前、后桨非定常推力系数和扭矩系数的变化规律.通过与试验数据的比较,结果表明:采用RANS方法结合SSTk-ω湍流模型能够较准确地预报对转螺旋桨的敞水性能;对于前后桨叶数相等的对转螺旋桨,采取小的时间步长能够提高数值预报精度,而对于前后桨叶数不等的对转螺旋桨,可以适当地加大时间步长.The numerical open water performance prediction model of contra-rotating propellers was established, two sets of contra-rotating propellers developed by David W Taylor Naval Ship RInD Center were studied based on Reynolds-averaged Navier-Stokes （RANS） method, the opposite rota- tion was dealt with sliding mesh method, and the unsteady thrust and torque coefficient of forward and after propeller were analyzed. Compared with the experimental data, it shows that RANS with SST h-co turbulence model has a good precision in the open water performance prediction of contra-ro- tating propellers, and small time step size can improve the level of accuracy for the numerical simula- tion of contra-rotationg propeller with the same forward and aft propeller blade number,while a rela- tively lager time step size is a better choice for the numerical simulation of contra-rotationg propeller with different forward and aft propellerr blade number.

关 键 词：对转螺旋桨 敞水性能 数值计算 雷诺平均纳维-斯托克斯方法 滑移网格 

分 类 号：U661.31[交通运输工程—船舶及航道工程]