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International Journal of Fluid Mechanics Research

Publication de 6  numéros par an

ISSN Imprimer: 2152-5102

ISSN En ligne: 2152-5110

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: 1.1 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: 1.3 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: 0.0002 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: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

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Curvature Effects on the Instabilities of Batchelor Rotating Disk Flows

Volume 37, Numéro 4, 2010, pp. 343-358
DOI: 10.1615/InterJFluidMechRes.v37.i4.40
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RÉSUMÉ

The stability of a Batchelor flow enclosed between a stationary and a rotating disk with a central hub is investigated by extensive experimental visualizations and direct numerical simulations. The first instability appears as circular rolls (CR), which propagate along the stator towards the rotation axis. Above a second threshold, spiral rolls (SRI) appear at the periphery of the cavity due to the destabilization of the boundary layer along the external cylinder. These spirals coexist with the circular rolls in the experiment. For the first time, the presence of an inner rotating hub, which is of major industrial importance, measured by the influence of the curvature parameter has been studied experimentally. This parameter strongly modifies the wave number of the instabilities as well as the angle of the spirals. Finally, for a given geometry, a very good agreement on the characteristics of these instabilities is obtained between the experimental and numerical approaches.

CITÉ PAR
  1. Poncet Sébastien, The stability of a thin water layer over a rotating disk revisited, The European Physical Journal Plus, 129, 8, 2014. Crossref

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