Efficiency-Noise Sample Analysis Method of Propeller Based on Potential Flow Theory

被引:0
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作者
Wang C. [1 ]
Zhao L.-M. [1 ]
Sun C. [1 ]
Chang S.-M. [1 ]
Wu H. [1 ]
机构
[1] College of Shipbuilding Engineering, Harbin Engineering University, Harbin
来源
关键词
Contracted and loaded tip propeller; Noise prediction; Optimal design; Potential flow theory; Variable parameter analysis;
D O I
10.13675/j.cnki.tjjs.210410
中图分类号
学科分类号
摘要
In order to improve efficiency and reduce noise,propeller design needs to balance the influence of different parameters on design goals based on accurate performance predictions. This paper used the panel method as the main method to predict the hydrodynamic performance of the CLT(Contracted and Loaded Tip)propeller,and introduced a noise model for the noise prediction.In the whole process,the 4-blade CLT propeller —P1727 propeller is used as the female propeller. Within the range of the pitch ratio of 0.9 to 1.2 times of the original pitch ratio,three forms of blade number(3-blade,4-blade,5-blade)are considered,and the hydrodynamic performance and noise performance of 100 design propeller cases are calculated finally.The propeller is designed to meet the thrust requirements of a medium-sized ship,and to find the minimum blade tip vortex noise and maximum efficiency solution set of the propeller.The calculation results show that the number of propeller blades is inversely proportional to the noise,the efficiency and noise performance are affected by the pitch ratio and show a certain regularity,when the thrust value is fixed. For the high-efficiency propeller P1727,changes in the pitch ratio and the number of blades will result in a certain range of balance between efficiency and noise,which can cope with different design requirements. © 2022 Journal of Propulsion Technology. All rights reserved.
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