排灌机械工程学报2025，Vol.43Issue(3)：224-230,7.DOI:10.3969/j.issn.1674-8530.23.0158
基于叶片仿生优化的离心泵压力脉动控制
Pressure pulsation control of centrifugal pump based on biomimetic optimization of blades
摘要
Abstract
A biomimetic sinusoidal trailing edge structure was designed to reduce pressure pulsation in the rotor-stator interaction area of centrifugal pumps.The effect of biomimetic blade trailing edge struc-ture on the pressure pulsation of the centrifugal pump was quantitatively studied by the combination of experiment and numerical simulation.The pressure pulsation intensity coefficient was introduced to ob-tain the pressure pulsation intensity distribution within the centrifugal pump,and the high-intensity pressure pulsation areas in the centrifugal pump flow field was accurately determined.It is found that the biomimetic sinusoidal trailing edge impellers can eliminate the high-frequency pressure pulsations within the rotor-stator interaction region of the centrifugal pump.This approach effectively improves the stability of the rotor-stator interaction flow field,consequently diminishing the pressure pulsation inten-sity in the rotor-stator interaction region.The biomimetic blade trailing edge structure is capable of dis-rupting the large-scale vortex structures at the trailing edge of the blade,thereby mitigating the local oscillation of the flow field caused by the persistent shedding of the blade trailing edge vortex.In com-parison to the original structure,the pressure pulsation amplitude in the rotor-stator interaction region of the centrifugal pump is reduced by about 5.7％when biomimetic blade trailing edge structure is used.This quantitatively illustrates the flow field stability effect on the flow field afforded by the biomi-metic blade trailing edge structure.The findings of this research contribute to improve the pressure pulsa-tion characteristics of the centrifugal pump,thereby enhancing the pump operation stability.关键词
叶片尾缘/仿生优化/压力脉动/动静干涉/涡结构Key words
blade trailing edge/biomimetic optimization/pressure pulsation/rotor-stator interaction/vortex structure分类
农业工程引用本文复制引用
王红超,林言丕,李晓俊,朱祖超..基于叶片仿生优化的离心泵压力脉动控制[J].排灌机械工程学报,2025,43(3):224-230,7.基金项目
国家自然科学基金资助项目(U21A20126,52406059) （U21A20126,52406059）
浙江省重点研发计划项目(2024C01117) （2024C01117）
