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International Journal of Fluid Mechanics Research

年間 6 号発行

ISSN 印刷: 2152-5102

ISSN オンライン: 2152-5110

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.0002 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

Two-Dye Laser-Induced Fluorescence Measurements and Numerical Study of Scalar Transport in Planar, Microfluidic Mixers

巻 40, 発行 6, 2013, pp. 530-544
DOI: 10.1615/InterJFluidMechRes.v40.i6.60
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要約

A novel method of characterizing a micromixer is proposed. The method is based on two-dye, ratiometric laser-induced fluorescence measurements using a confocal microscope. A fluorescent tracer is added to one of the two inlet fluid streams of the micromixer while a second fluorescent dye is added to both inlet fluid streams to serve as a reference. The emission intensity of the fluorescence tracer was normalized by the reference fluorescent signal. Using this technique an accurate, spatially-resolved, quantitative measurement of the tracer concentration field can be obtained. This method was used successfully to quantify the mixing performance of three different micromixer designs: a straight channel, a curved, meandering channel, and a square-wave channel. Computational fluid dynamics (CFD) simulations were also conducted for the straight and curved, meandering micromixers. The CFD results were in good agreement with experimental data. At a Reynolds number of 22.5, the square-wave microchannels yield the best mixing performance with a higher mixing efficiency for a fixed channel length. Curved microchannels showed better mixing performance than straight microchannels at this same Reynolds number. The numerical and experimental results underscore the importance of spatially-resolved measurements in the depth-wise direction since even relatively simple, planar mixer designs can produce complex three-dimensional flow fields.

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