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Interfacial Phenomena and Heat Transfer

Publication de 4  numéros par an

ISSN Imprimer: 2169-2785

ISSN En ligne: 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

MODELING AN IMPACT DROPLET ON A PAIR OF PILLARS

Volume 5, Numéro 1, 2017, pp. 43-57
DOI: 10.1615/InterfacPhenomHeatTransfer.2018020347
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RÉSUMÉ

In this work, we use a multiphase lattice Boltzmann algorithm to simulate the impact of a droplet on a surface with a pair of pillars. The expected equilibrium wetting states of a droplet on a textured superhydrophobic surface normally are the Wenzel or the Cassie-Baxter state. An extra wetting regime arises when considering the wetting of a pair of pillars where the droplet wets both sides of the pillars but an air pocket appears directly under the droplet in the spacing between the two pillars. This wetting outcome is henceforth referred to as the engulfed state. Also, the effect of important control parameters such as geometrical parameters on creating the engulfed state is studied. We propose a regime map for different Weber numbers and geometrical parameters to predict the whole range of possible wetting states which are the engulfed, Wenzel, Cassie-Baxter, and breakup states. Finally, the influence of patterned substrates wettability on outcomes is investigated. Results show that the wetting state varies as the equilibrium contact angle changes from 60° to 150°.

CITÉ PAR
  1. Rashidian Hossein, Sellier Mathieu, Mandin Philippe, Dynamic wetting of an occlusion after droplet impact, International Journal of Multiphase Flow, 111, 2019. Crossref

  2. Rashidian Hossein, Sellier Mathieu, Oblique Impact of a Droplet on a Textured Substrate, in IUTAM Symposium on Recent Advances in Moving Boundary Problems in Mechanics, 34, 2019. Crossref

  3. Rashidian Hossein, Broom Matheu, Willmott Geoff R., Sellier Mathieu, Effects of a microscale ridge on dynamic wetting during drop impact, Journal of the Royal Society of New Zealand, 50, 4, 2020. Crossref

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