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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：光电工程与仪器科学学院院长、党委副书记
其他任职：辽宁省先进光电子技术重点实验室副主任，大连市新型功能材料与光电子器件重点实验室主任，中国超材料学会理事，中国机械工程学会极端制造分委员会委员，国际先进材料学会会士，Microsystems&Nanoengineering、chemosensors等期刊副编辑
性别：男
毕业院校：布里斯托尔大学
学位：博士
所在单位：光电工程与仪器科学学院
学科：光学工程. 电磁场与微波技术. 光学. 测试计量技术及仪器. 精密仪器及机械
办公地点：研教楼706
联系方式：0411-84706156
电子邮箱：caotun1806@dlut.edu.cn
Three-dimensional flow field simulation of steady flow in the serrated diffusers and nozzles of valveless micro-pumps
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论文类型：期刊论文
发表时间：2019-04-01
发表刊物：JOURNAL OF HYDRODYNAMICS
收录刊物：SCIE、EI
卷号：31
期号：2
页面范围：413-420
ISSN号：1001-6058
关键字：Valveless micro-pump; steady flow; diffuser and nozzle; serrated-sided wall; three-dimensional flow field simulation
摘要：This paper presents a three-dimensional flow field simulation of the steady flows through diffusers and nozzles with straight or serrated-sided walls to analyze the effect of the channel structure on the flow characteristics. The pressure and velocity profiles in the diffusers and the nozzles as well as the net volumetric flow rate are determined. Our simulation demonstrates that the pressure and velocity profiles in the serrated diffuser/nozzles are more complicated than those with the straight-sided wall, while the net steady flow rate with the straight-sided wall increases monotonically with the increase of the pressure difference, the steady flow rate with serrated sided walls increases gradually to reach a maximum and then decreases with the increase of the pressure difference. The results suggest that the number of the sawteeth plays a significant role in optimizing the design of serrated diffusers and nozzles for improving the transport efficiency of valveless micro-pumps.