光学精密工程2025，Vol.33Issue(8)：1202-1211,10.DOI:10.37188/OPE.20253308.1202
翼型挡体无阀压电泵在不同攻角下的输出性能
Output performance of valveless piezoelectric pumps with airfoil baffles at various angles of attack
摘要
Abstract
This study explored the effect of varying the angle of attack of airfoil on the output performance of the valveless piezoelectric pump.It placed symmetrical and asymmetrical airfoils in the tube respective-ly,and designed valveless piezoelectric pumps with airfoil baffles at various angles of attack(0°,5°,10° and 15°).Output performance tests were conducted on the piezoelectric pump.Additionally,flow field simula-tions using COMSOL software were performed to analyze the vortex structures and energy dissipation characteristics.The experimental results showed that the National Advisory Committee for Aeronautics(NACA)0015 piezoelectric pump performs optimally at a 0° angle of attack,achieving a maximum flow rate of 235.56 ml/min.Under the same angle of attack,the performance of the piezoelectric pump with symmetrical airfoil baffles was better than that of the piezoelectric pump with asymmetrical airfoil baffles.As the angle of attack increased,the piezoelectric pump performance decreased.The simulation results in-dicated that the scale of the vortices around the airfoil baffle during the reverse flow was higher than that during the positive flow;under the same angle of attack,the vortices around the NACA63-412 airfoil were significantly denser and larger than those around the NACA0015 airfoil.Increasing the angle of attack led to vortex aggregation and intensity rise,accompanied by escalated energy dissipation.The study con-cludes that the angle of attack significantly affects the pump's performance,with larger angles exacerbating energy dissipation and reducing output.This research provides new insights and theoretical foundations for the design and optimization of high-performance valveless piezoelectric pumps.关键词
压电泵/翼型挡体/能量耗散/涡识别Key words
piezoelectric pump/airfoil baffle/energy dissipation/vortex identification分类
机械工程引用本文复制引用
邝铭,熊健,王璐,黄亚冬,黄俊,张思尧..翼型挡体无阀压电泵在不同攻角下的输出性能[J].光学精密工程,2025,33(8):1202-1211,10.基金项目
国家自然科学基金(No.51605200,No.52206045) （No.51605200,No.52206045）
