... propeller mixer 推进式混合器... propeller boss 螺旋桨毂 propeller fan 螺旋浆式通风机,轴流...
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propeller boss fairwater 螺旋桨毂导流帽
scraping of propeller boss 螺旋桨锥孔修正
scrapping of propeller boss 螺毂孔研配
forward end of propeller boss 桨毂前端
The Propeller Boss Cap Fins(PBCF)is a new Japan—developed deviceattachedto theshaftof propeller.
在螺旋桨上加装桨毂帽鳍PBCF，是日本近年来开发的一种廉价的节能装置。
In order to predict the hydrodynamic performance of propeller with boss cap fins, CFD software was used to calculate the its open water performance.
为了预报毂帽鳍的水动力性能，采用计算流体力学软件对粘性流场中毂帽鳍的敞水性能进行计算研究。
The boss vortex cavitation of propeller can be avoided by PBCF, and an increase of 2% in propulsion efficiency has been measured in the model tests.
桨毂帽鳍可改善毂涡空泡，模型试验状态下可提高推进效率2%左右。
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