Open AccessControllable Pitch Propeller Performance Comparison of Different Speed and Pitch Matches at non-cavitation condition
Author(s) -
Peng Xi,
Meng Li,
Zheng Huang,
Zhan-zhi Wang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1985/1/012066
Subject(s) - propeller , propulsion , cavitation , acoustics , blade pitch , rotational speed , fluent , pitch angle , computer science , marine engineering , physics , simulation , engineering , mechanical engineering , aerospace engineering , computer simulation , turbine , geophysics
The paper took one controllable pitch propeller as study model. Open water performance at different pitches were calculated based on FLUENT. On this basis, rotational speeds that match P/D = 1.5, 1.3, 1.15, 1.0 at 21kn were obtained according to characteristic curve of navigation. Propeller efficiency and pulsing pressure were carried out and compared at different matches. The result shows that pulsating pressure is both influenced by speed and pitch. It is non-linear relationship between pitch ratio and cavitation and efficiency and is inconsistent with the character of propulsion efficiency. Hence it brings adverse effect on pulsing pressure if the match of speed and pitch is selected only according to propulsion efficiency. The paper recommends comprehensive consideration about pulsing pressure and propulsion performance should be taken to choose match of speed and pitch at non-cavitation condition.