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作 者:邵明慧 胡铝 符龙熙 SHAO Ming-hui;HU Lyu;FU Long-xi(School of Mechantronics&Vehicle Engineering,Chongqing Jiaotong University,Chongqing 400074,China)
机构地区:[1]重庆交通大学机电与车辆工程,重庆400074
出 处:《机械研究与应用》2023年第3期60-64,共5页Mechanical Research & Application
摘 要:基于伯努利原理设计一种新型微流驱动器,并对其内流场情况进行数值模拟且对整体结构进行优化研究。新型微流驱动器采用陶瓷压电片对流场真空度进行控制,以实现电力向动力的转化。依据伯努利原理设计初步模型并对其流场范围内的流速、压强进行分析,采用SIMPLE算法对压强-速度耦合进行求解。分析与优化后的驱动器效率、稳定性、可靠性均得到显著提升。此分析为微流驱动器的发展提供了一种思路,对微流驱动器的设计具有一定的参考价值。Based on the Bernoulli principle,a new microfluidic actuator is designed in this paper,the flow field in the new microfluidic actuator is numerically simulated,and its overall structure is optimized.The new microfluidic actuator uses ceramic piezoelectric sheet to control the vacuum degree of the whole flow field,so as to realize the transformation from electric power to power.According to the Bernoulli′s principle,the preliminary model is designed,the velocity and pressure in the flow field are analyzed,and the SIMPLE algorithm is used to solve the pressure velocity coupling.After analysis and optimization,the efficiency,stability and reliability of the driver have been significantly improved.This research provides an idea for the development of microfluidic driver,and has a certain reference value for the design of microfluidic driver.
关 键 词:压强-速度耦合 流场分析 微型泵 压强场 速度场
分 类 号:TH36[机械工程—机械制造及自动化]
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