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International Journal of Fluid Mechanics Research
Главный редактор: Atle Jensen (open in a new tab)
Заместитель главного редактора: Valery Oliynik (open in a new tab)
Редактор-основатель: Victor T. Grinchenko (open in a new tab)

Выходит 6 номеров в год

ISSN Печать: 2152-5102

ISSN Онлайн: 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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A Model of Dispersion in the Unsteady Separated Shear Flow past Complex Geometries

Том 29, Выпуск 6, 2002, 18 pages
DOI: 10.1615/InterJFluidMechRes.v29.i6.40
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Краткое описание

The chaotic dynamics of separated flows past complex geometries is studied by means of a low order model. The flows are assumed to be rotational and inviscid, and a technique is described to determine the stream functions for linear shear profiles. The geometry considered is a snow cornice, whose edge allows for the separation of the flow and reattachment downstream of the recirculation region. A free point vortex has been added to the flows in order to constrain the separation points to be located at the edge. Unsteadiness is imposed by displacing the vortex from equilibrium. The trajectories of passive scalars continuously released upwind of the separation point and trapped by the recirculating bubble are numerically integrated, and concentration time series are calculated at fixed locations downwind of the reattachment point. The heteroclinic tangle and lobe dynamics of the recirculation region appear to be among the causes of intermittent trapping and release of scalars, in agreement with the simulation performed by higher order models.

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