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Atomization and Sprays

Publication de 12  numéros par an

ISSN Imprimer: 1044-5110

ISSN En ligne: 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

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A SPIN COATING DEVICE FOR THE INVESTIGATION OF SPRAY−FILM INTERACTIONS UNDER ENGINE RELEVANT CONDITIONS

Volume 26, Numéro 11, 2016, pp. 1111-1125
DOI: 10.1615/AtomizSpr.2016012464
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RÉSUMÉ

A novel spin coating device for producing homogeneous and stable thin oil films under internal combustion (IC) engine−relevant conditions is presented. A minimum film thickness of 2 µm is achievable, which seems to correspond to the thickness of oil films found on cylinder walls of IC engines. The incorporation of the spin coating device into a high-pressure chamber provides both, adjustable ambient conditions and access for optical measurement techniques. The chamber can be equipped with automotive fuel injectors spraying onto the oil films. Oil film generation is achieved via rotation of a sapphire window as film carrier surface. The resulting film thickness is determined using interferometry. Four different aspects of the evolving film thickness are observed and analyzed: (i) influence of rotational speed, (ii) influence of ambient temperature, (iii) film stability during deceleration and after the end of rotation, and (iv) spatial homogeneity of the film. The results confirm that the main parameter influencing minimum film thickness is rotational speed, as it scales centrifugal forces. As oil viscosity strongly decreases with temperature, ambient temperature has an effect on film thickness, too. The film can be considered homogeneous after end of rotation, which is a prerequisite for well-defined investigations of spray−film interactions.

CITÉ PAR
  1. Seel Kevin, Reddemann Manuel A., Kneer Reinhold, Optical investigation of the interaction of an automotive spray and thin films by utilization of a high-pressure spin coater, Experiments in Fluids, 59, 3, 2018. Crossref

  2. Schumacher Leif, Seel Kevin, Reddemann Manuel A., Kneer Reinhold, High-speed Fizeau interferometry for film topography measurement during spray film interaction, Review of Scientific Instruments, 89, 11, 2018. Crossref

  3. Seel K., Reddemann M. A., Baltaci T., Kneer R., Impact of Lubricating Oil Films on Spray-Wall Interaction, SAE Technical Paper Series, 1, 2015. Crossref

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