螺旋桨空间诱导压力场计算分析  

Investigation about the Spatial Pressure Field by the Propeller

作　　者：侯立勋[1] 胡安康[1] 汪春辉[1] 韩凤磊[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院,哈尔滨150001

出　　处：《武汉理工大学学报（交通科学与工程版）》2015年第4期743-746,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金项目资助(批准号:51309061)

摘　　要：为了对螺旋桨诱导的空间压力场进行计算分析,采用低阶速度势面元法分别对均匀流及非均匀流中螺旋桨的水动力性能及空间压力进行了计算.对螺旋桨旋转一周产生的空间压力场进行傅里叶转换,在频域内进行分析.通过对实例计算脉压场进行分析可知,做旋转运动的螺旋桨在其后方尾流范围内产生强烈的脉动压力场,与敞水情况相比,船后伴流中的螺旋桨对桨前空间也产生较强的脉动压力场,且在高伴流区内脉压信号更显著.In order to calculate and analyze the spatial pressure field induced by the propeller, the low-- order velocity potential surface panel method is adopted to calculate the hydrodynamic performance and the induced spatial pressure of the propeller in open water condition and non--uniform flow re- spectively. The pressure field produced by the propeller rotating for one cycle is analyzed in frequency domain through Fourier transform. Through the analysis of calculated fluctuating pressure of in- stances, it can be known that the propeller in rotating motion produces intense fluctuating pre,~,＇ure field in the wake field of the propeller. Comparing with the open water condition, the propeller work- ing behind the ship also produces strong fluctuating pressure, and the fluctuating pressure signal is more significant in the higher wake field behind the ship.

关 键 词：螺旋桨 面元法 压力场 傅里叶变换 频域 

分 类 号：U622.2[交通运输工程—船舶及航道工程]