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Journal of Flow Visualization and Image Processing

Publication de 4  numéros par an

ISSN Imprimer: 1065-3090

ISSN En ligne: 1940-4336

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: 0.6 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.6 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: 0.00013 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: 0.14 SJR: 0.201 SNIP: 0.313 CiteScore™:: 1.2 H-Index: 13

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NUMERICAL ANALYSIS ON THE MIXING PERFORMANCE OF A NOVEL EFFUSION-TYPE MICROMIXER

Volume 14, Numéro 3, 2007, pp. 245-266
DOI: 10.1615/JFlowVisImageProc.v14.i3.10
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RÉSUMÉ

A numerical approach to the mixing characteristics of a novel effusion-type micromixer was performed in the present study. The investigations of the effects of effusion tube's height, shape of the effusion hole as well as the arrangement of effusion tubes on the mixing efficiency within microchannels were systematically conducted using the CFD technique. Five different types of the effusion hole — a straight circular shape, square shape, diamond shape, and two different aspect ratios of an ellipse shape — were considered to evaluate the maximum mixing performance for triple divisions of a micromixer under flow conditions of the Peclet number (Pe) as 100, 200, and 400. The results showed that nearly complete mixing of two miscible liquids can be achieved by including effusion-tube structures in the middle part of the sandwich microchannels of the micromixer. Results revealed an improvement in mixing efficiency when the interfacial surface between two working fluids is obviously widened by the present effusion hole design, and suitable arrangement of the effusion tubes is important for improving the mixing efficiency. The results also showed the excellent mixing efficiency of over 80% after the solutions passed through a 2-mm-long micro-channel at Pe = 100. The proposed novel design of a passive effusion-type micromixer can be applied in μ-TAS.

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