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Interfacial Phenomena and Heat Transfer

年間 4 号発行

ISSN 印刷: 2169-2785

ISSN オンライン: 2167-857X

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: 0.5 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: 0.8 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: 0.2 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: 0.00018 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: 0.11 SJR: 0.286 SNIP: 1.032 CiteScore™:: 1.6 H-Index: 10

Indexed in

MARANGONI-IMPROVED MIXING IN A TWO-DROPLET SYSTEM

巻 5, 発行 1, 2017, pp. 81-95
DOI: 10.1615/InterfacPhenomHeatTransfer.2018024499
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要約

The study of how surface tension gradients affect the mixing of liquids is beneficial in understanding applications that involve an air-liquid interface. Our work investigates the mixing of a yellow food color (tartrazine) droplet in an ethanol (EtOH) droplet. Though studies of droplet coalescence and mixing on a plane have been carried out, the effects of the air-liquid interface and the resulting nonuniform surface tension distribution were not well understood. To fill the knowledge gap, we study the impact of surface tension gradient, or Marangoni stress, on the mixing of two droplets. Using tartrazine as the mixing material in water, we first evaluate how the mixing rate obtained from our proposed two-droplet system differs from the mixing rate that would occur if molecular diffusion alone was present. Second, we assess the impact of surface tension gradient through studying the mixing of tartrazine in various EtOH concentrations. Through a mathematical model built using COMSOL, we confirmed that varying the EtOH concentration did not impact the mixing time. Our simulation also presented a qualitative understanding of mixing rate as a function of contact angle.

によって引用された
  1. Sykes Thomas C., Castrejón-Pita Alfonso A., Castrejón-Pita J. Rafael, Harbottle David, Khatir Zinedine, Thompson Harvey M., Wilson Mark C. T., Surface jets and internal mixing during the coalescence of impacting and sessile droplets, Physical Review Fluids, 5, 2, 2020. Crossref

  2. Pizarro Agustin D., Berli Claudio L. A., Soler-Illia Galo J. A. A., Bellino Martín G., Droplets in underlying chemical communication recreate cell interaction behaviors, Nature Communications, 13, 1, 2022. Crossref

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