大连理工大学学报2017，Vol.57Issue(2)：148-156,9.DOI:10.7511/dllgxb201702006
基于RANS法的B系列对转螺旋桨敞水性能数值模拟
Numerical simulation of open water performance of B series of contra-rotating propellers based on RANS methods
摘要
Abstract
Based on RANS methods,the open water performance of B series of contra-rotating propellers is studied,and single propeller and contra-rotating propellers are calculated to analyze the effects of different turbulence models on the numerical results.The research is conducted to study the parameters matching of contra-rotating propellers between pitch ratio and diameter ratio.The open water efficiency of single propeller and contra-rotating propellers is compared,meanwhile,the change of wake stream field is dissected.The method breaks through the limitation of the traditional potential flow theory which can not include viscosity,and the difficulty of analyzing and grasping the micro-flow mechanism and so on.The numerical analyses results show that the numerical accuracy of RSM model is higher,and the reasonable diameter ratio and distance between the blades of the contra-rotating propellers significantly improve the propulsive efficiency.The rear propeller can absorb the axial velocity and vortex energy of the front propeller which will increase the fluid momentum flowing through the blade and reduce the external diameter of wake flow of the front propeller,reduce the tangential velocity's influence on fluid disturbance which can increase the propeller's thrust.It's practical for improving the propeller's propulsion performance in engineering.关键词
对转螺旋桨/RANS法/水动力性能/湍流模型/数值模拟Key words
contra-rotating propellers/RANS methods/hydrodynamic performance/turbulence models/numerical simulation分类
交通工程引用本文复制引用
胡俊明,李铁骊,林焰,纪卓尚,杜祥进..基于RANS法的B系列对转螺旋桨敞水性能数值模拟[J].大连理工大学学报,2017,57(2):148-156,9.基金项目
国防基础科研计划资助项目(A0820132027) （A0820132027）
渔业节能关键技术研究与重大装备开发资助项目(201003024) （201003024）
国家自然科学基金资助项目(51209034) （51209034）
中央高校基本科研业务费专项资金资助项目(DUT14RC(3)043) （DUT14RC(3）
中国博士后科学基金资助项目(2014M561234) （2014M561234）
中国博士后科学基金特别资助项目(2015T80256) （2015T80256）
辽宁省博士启动基金资助项目(201501176). （201501176）
