Three-Dimensional Theoretical Study on Flow Characteristics of a Spiral-Channel Viscous Micropump

• Kang Donghyuk

  Department of Mechanical Engineering, Saitama University

• Nishibe Koichi

  Department of Mechanical Engineering, Tokyo City University

• Sato Kotaro

  Department of Mechanical System Engineering, Kogakuin University

• Yokota Kazuhiko

  Department of Mechanical Engineering, Aoyama Gakuin University

Abstract

Technological developments have led to micropumps playing an ever-greater role at the heart of micro total analysis systems. Spiral-channel viscous micropumps have been studied theoretically, numerically, and experimentally. However, high-accuracy performance predictions have not been achieved over a wide range of operating conditions. The present study proposes three-dimensional and quasi-three-dimensional theoretical expressions for predicting the pressure performance of spiral-channel viscous micropumps in low-Reynolds-number environments. The theoretical analysis is validated through a series of comparisons with numerical simulation results for the pressure performance curves, velocity distributions, velocity gradient distributions, and channel internal pressure distributions. Furthermore, the influence of the channel aspect ratio on the performance characteristics is investigated.

Journal

• International Journal of Fluid Machinery and Systems

  International Journal of Fluid Machinery and Systems 12 (2), 169-180, 2019

  Turbomachinery Society of Japan, Korean Society for Fluid Machinery, Chinese Society of Engineering Thermophysics, IAHR

Keywords

• Micropump
• Viscosity
• Spiral channel
• Pump performance
• Three-dimensional analysis
• low Reynolds number

Details

• CRID: 1390845713080329856
• NII Article ID: 130007668915
• DOI: 10.5293/ijfms.2019.12.2.169
• ISSN: 18829554
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed