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Atomization and Sprays

年間 12 号発行

ISSN 印刷: 1044-5110

ISSN オンライン: 1936-2684

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: 1.2 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: 1.8 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: 0.3 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: 0.00095 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: 0.28 SJR: 0.341 SNIP: 0.536 CiteScore™:: 1.9 H-Index: 57

Indexed in

A NONLINEAR MODEL FOR OSCILLATIONS OF A DROPLET IMPACTING A SOLID SURFACE

巻 30, 発行 4, 2020, pp. 267-286
DOI: 10.1615/AtomizSpr.2020034328
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要約

The dynamics of spreading and recoiling of a liquid droplet after colliding with a partially wet solid surface is studied analytically. Using a mass-spring-damper analogy and based on the variational principle, the energy balance equation is developed, and a nonlinear ordinary differential equation is obtained. Predicted results are validated against the experimental data of others, and it is shown that the model is able to closely predict the effects of inertia, viscosity, and surface tension by reproducing many of the features of droplet dynamics. In addition to the maximum spreading diameter, the conditions under which a droplet recoils or bounces are obtained. Assuming a negligible contact angle hysteresis and no formation of rim or splash, results are discussed for partially wet surfaces in a wide range of viscosity and impact velocities. Compared to other models, which are mostly linear, the proposed model has the advantage of providing a simple and accurate description of droplet dynamics.

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