对转桨无空泡脉动压力指向性计算分析  

Calculation of fluctuating pressure directivity of counter rotating propeller under non-cavitating condition

作　　者：侯立勋[1] 胡安康[1] 韩凤磊[1] 汪春辉[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《华中科技大学学报（自然科学版）》2015年第12期82-85,共4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(51309061);中央高校基本科研业务费专项资金资助项目(heucf150104)

摘　　要：为了对对转桨的脉动压力场指向性进行计算,采用面元法计算了对转桨的空间脉动压力及其指向性.采用诱导速度考虑对转桨前桨和后桨之间的相互扰动以及螺旋桨与流场内给定实体球面之间的相互扰动.采用傅里叶变换将螺旋桨在非均匀流内旋转一周诱导的空间脉动压力从时域变换到频域内进行分析.通过对轴向指向性进行计算分析可知:和单桨相比,对转桨产生相对较弱的脉动压力场,可有效地改善船尾振动.In order to calculate the fluctuating pressure field directivity of underwater counter rotating propeller, the surface panel method was adopted to calculate the spatial fluctuating pressure field and its directivity of the countra rotating propeller. The hydrodynamic interference between the two pro- pellers of the counter rotation propeller as well as the interference between given solid spherical sur- face panel and propeller were considered through induced velocities. The fluctuating pressure pro- duced by the propeller rotating for one cycle was analyzed in frequency domain through Fourier trans- form. Instance study shows that CRP produces weaker fluctuating pressure field comparing with the single propeller, and can improve the stern vibration effectively.

关 键 词：面元法 对转桨 脉动压力 指向性 振动 

分 类 号：U661.3[交通运输工程—船舶及航道工程]