Evanescent wave-based flow diagnostics

Yutaka Kazoe, Minami Yoda

研究成果: Article査読

11 被引用数 (Scopus)

抄録

Miniaturized flow systems have been developed for various applications, including integrated chemical analyses and thermal management of microelectronics. Understanding interfacial transport is important in designing and optimizing such flow systems, since surface effects become significant due to the large surface areas and small volumes at these length scales. Recently, various near-wall flow diagnostic techniques have been developed based on evanescent-wave illumination. Since evanescent waves only illuminate the fluid in the region over the first few hundred nanometers next to the wall, these techniques have much better spatial resolution than conventional methods based on epifluorescence microscopy. This paper presents recent advances in evanescent wave-based flow diagnostics using fluorescent tracers, including evanescent-wave particle velocimetry applied to flows driven by both pressure and voltage gradients and evanescent-wave fluorescence, which has been used to measure near-wall liquid temperature and pH fields, as well as the surface charge, or wall ζ-potential, distributions.

本文言語English
論文番号21305
ジャーナルJournal of Fluids Engineering, Transactions of the ASME
135
2
DOI
出版ステータスPublished - 2013
外部発表はい

ASJC Scopus subject areas

  • 機械工学

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