An Efficiency improved diffuser with extended sidewall for application in valveless micropump

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• 作者：Jiaqi Wang ; Kean C. Aw ; Andrew McDaid ; Rajnish N. Sharma
• 刊名：Heat and Mass Transfer
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：52
• 期：4
• 页码：913-923
• 全文大小：1,326 KB
• 参考文献：1.Stemme E, Stemme G (1993) A valveless diffuser/nozzle-based fluid pump. Sens Actuators A Phys 39:159–167CrossRef
  2.Amirouche F, Zhou Y, Johnson T (2009) Current micropump technologies and their biomedical applications. Microsyst Technol 15:647–666CrossRef
  3.Laser DJ, Santiago JG (2004) A review of micropumps. J Micromech Microeng 14:R35CrossRef
  4.Cui Q, Liu C, Zha XF (2007) Study on a piezoelectric micropump for the controlled drug delivery system. Microfluid Nanofluid 3:377–390CrossRef
  5.Ullmann A (1998) The piezoelectric valve-less pump—performance enhancement analysis. Sens Actuators A Phys 69:97–105CrossRef
  6.Xiaoqi H, Jianhui Z, Qixiao X, Wei C (2009) Research on a novel piezoelectric pump with unsymmetrical slopes element, applications of ferroelectrics, 2009 ISAF 2009 18th IEEE international symposium on the, IEEE, pp 1–6
  7.Lee S, Kim KJ (2006) Design of IPMC actuator-driven valve-less micropump and its flow rate estimation at low Reynolds numbers. Smart Mater Struct 15:1103CrossRef
  8.Pak JJ, Kim J, Oh SW, Son JH, Cho SH, Lee S-K et al (2004) Fabrication of ionic-polymer-metal-composite (IPMC) micropump using a commercial Nafion. Smart Struct Mater Int Soc Opt Photonics pp 272–80
  9.McDaid AJ, Aw KC, Haemmerle E, Xie SQ (2012) Control of IPMC actuators for microfluidics with adaptive “Online” iterative feedback tuning. IEEE ASME Trans Mechatron 17:789–797CrossRef
  10.Choe Y, Kim ES (2013) Valveless micropump driven by acoustic streaming. J Micromech Microeng 23:045005CrossRef
  11.Cooney CG, Towe BC (2004) A thermopneumatic dispensing micropump. Sens Actuators A Phys 116:519–524CrossRef
  12.Jeong OC, Yang SS (2000) Fabrication and test of a thermopneumatic micropump with a corrugated p + diaphragm. Sens Actuators A Phys 83:249–255CrossRef
  13.Jiang XN, Zhou ZY, Huang XY, Li Y, Yang Y, Liu CY (1998) Micronozzle/diffuser flow and its application in micro valveless pumps. Sens Actuators A Phys 70:81–87CrossRef
  14.Singhal V, Garimella SV, Murthy JY (2004) Low Reynolds number flow through nozzle-diffuser elements in valveless micropumps. Sens Actuators A Phys 113:226–235CrossRef
  15.Li XH, Yu XM, Zhang DC, Li ZH, Xu WH (2007) A micro diffuser/nozzle pump with fins on the sidewall, solid-state sensors, actuators and microsystems conference, 2007 TRANSDUCERS 2007 international, pp 2207–2210
  16.Lee C-J, Sheen H-J, Tu Z-K, Lei U, Yang C-Y (2009) A study of PZT valveless micropump with asymmetric obstacles. Microsyst Technol 15:993–1000CrossRef
  17.Xu YH, Yan WP, Guo L (2014) Valveless micropump with saw-tooth microchannel. Key Eng Mater Trans Tech Publ 613:228–235CrossRef
  18.Chandrasekaran A, Packirisamy M (2011) Geometrical tuning of microdiffuser/nozzle for valveless micropumps. J Micromech Microeng 21:045035CrossRef
  19.Aw KC, Wang J, Sharma RN (2014) Optimization of valveless micropump for drug delivery, the 9th IEEE international conference on nano/micro engineered and molecular systems, Waikiki Beach, Hawaii, USA
  20.White FM (1994) Fluid mechanics. McGraw-Hill, New York
  21.Wang Y-C, Hsu J-C, Kuo P-C, Lee Y-C (2009) Loss characteristics and flow rectification property of diffuser valves for micropump applications. Int J Heat Mass Transf 52:328–336CrossRef MATH
  22.ASHRAE (2001) ASHRAE handbook-2001 fundamentals. Atlanta
  
• 作者单位：Jiaqi Wang (1)
  Kean C. Aw (1)
  Andrew McDaid (1)
  Rajnish N. Sharma (1)
  
  1. Mechanical Engineering, University of Auckland, Auckland, New Zealand
  
• 刊物类别：Engineering
• 刊物主题：Engineering Thermodynamics and Transport Phenomena
  Industrial Chemistry and Chemical Engineering
  Thermodynamics
  Physics and Applied Physics in Engineering
  Theoretical and Applied Mechanics
  Engineering Fluid Dynamics
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-1181

文摘

A diffuser/nozzle pair serves as a flow rectifying element in a valveless micropump, which is one key component in microfluidics devices. This paper proposes a diffuser/nozzle element with extended sidewall, ‘lip’, at the diffuser’s large opening end. This novel structure is based on the fluid mechanism concept that an extended sidewall introduces extra entrance pressure loss, which is preferred in the nozzle direction. A clear improvement in efficiency is observed in both the numerical and experimental results.