基于Theodorsen方法的螺旋桨空泡数值计算研究  

Investigation on numerical calculation for propeller cavity based on theodorsen method

作　　者：赵鹏[1] 周玉龙[1] 赵鹏飞[1] 杨超[1] 

机构地区：[1]江苏科技大学船舶与海洋工程,镇江212003

出　　处：《船舶》2013年第2期15-20,共6页Ship & Boat

摘　　要：探讨一种预测桨叶剖面任意点处是否会出现空泡的方法。首先,针对所给桨叶剖面,采用Theodorsen方法计算出绕叶剖面周线的速度分布和压力分布,用湍流边界层Head方法进行压力分布修正;然后将所得各点降压系数与空泡数进行比较,从而预测叶剖面各点是否会出现空泡;最后,通过对HSP桨旋转一周过程中桨叶r/R=0.7处剖面压力系数的计算,对该处是否会出现空泡作出判断,结果显示计算值与实验值符合性较好。This paper mainly discusses a method to predict whether cavity appears at an arbitrary point on blade profile. Firstly, the velocity and pressure distribution around the given blade section are calculated by Theodorsen method, and the pressure distribution is corrected by the turbulent boundary layer Head method. Then the pressure coefficient is compared with the cavity number to predict whether the cavity will appear at the calculated points on the blade section. Finally ,pressure coefficient of blade section at r/R/=0.7 profile for HSP propeller is calculated during one rotation cycle, in order to decide whether the cavity appears. It shows that the calculated results are consistent with the experimental results ,which are practically available.

关 键 词：Theodorsen法 边界层修正 螺旋桨 空泡 

分 类 号：U661.313[交通运输工程—船舶及航道工程]