摘要
采用CFD仿真方法研究了安装在调距桨油缸外的导流帽对螺旋桨水动力性能的影响,研究发现导流帽对桨叶受力影响较小,但导流帽降低了桨毂的阻力,使得整个推力增大,推进效率有所提高。进速系数较大时,导流帽对叶根区域压力分布有一定影响,但总的来说导流帽对叶根区域流动影响较小。
The paper investigates the influence of hub cap on the hydrodynamic characteristics of propeller using CFD method. The hub cap is installed outside the servo cylinder of CPP. The results show that hub cap has little effect on the total forces of blade. However, the hub cap decreases the hub resistance, and thus increases the propeller thrust and efficiency. Besides, the hub cap has some influence on the pressure distribution near blade root, but the overall influence on the root flow is small.
作者
卜锋斌
刘爱兵
谢清程
BU Fengbin;LIU Aibing;XIE Qingcheng(Navy Representative Office at No.704 Research Institute,Shanghai 200031,China;Shanghai Marine Equipment Research Institute,Shanghai 200031,China)
出处
《船舶工程》
CSCD
北大核心
2018年第7期25-28,65,共5页
Ship Engineering
关键词
螺旋桨
导流帽
水动力性能
CFD仿真
propeller
hub cap
hydrodynamic characteristics
CFD simulation
