Influence of pit diameter on the broadband noise of bionic centrifugal pump
DAI Cui1, CAO Jingjian1, QIU Junfeng1, DONG Liang2*, WANG Zhaoxue1, CHEN Yiping1
1. School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2. National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China
Abstract：A bionic noise reduction method of the centrifugal pump was proposed and tested by means of numerical calculation, in which pits were arranged on the blade surface and the pit parameters were changed in the direction of flow.Based on this, an index formula for broadband noise was proposed. The orthogonal design method was used to optimize the variables to reduce the design dimension, and the uniform design method was used to verify the feasibility of the noise reduction method. Finally, a sample with good noise reduction effect was obtained.The results show that the broadband flow noise of the centrifugal pump is significantly reduced under the condition of almost no influence on the hydraulic characteristics.The simulation results also show that there is no discernible difference between the steady flow images of different samples. The result is help to promote study on the effect of bionic structure on broadband noise of centrifugal pump.
代翠,曹晶剑,仇俊峰,董亮*,王照雪,陈怡平. 凹坑直径变化对仿生离心泵宽频噪声的影响[J]. 排灌机械工程学报, 2023, 41(4): 346-353.
DAI Cui,CAO Jingjian,QIU Junfeng,DONG Liang*,WANG Zhaoxue,CHEN Yiping. Influence of pit diameter on the broadband noise of bionic centrifugal pump. Journal of Drainage and Irrigation Machinery Engin, 2023, 41(4): 346-353.
